Shop Best Enhanced Network Cable Tester in NOYAFA

Shop Best Enhanced Network Cable Tester in NOYAFA

2021-10-11
NOYAFA
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enhanced network cable tester is the excellent offspring of SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED. This product, adopting the most advanced R&D technology, is precisely manufactured based on the needs of customers. It has various specifications and styles available. Having been tested several times, it has the performance of durability and functionality, and is proved to be long-lasting in use. Moreover, the appearance of the product is appealing, making it more competitive.The brand NOYAFA represents our capability and image. All its products are tested by the market for times and are proven to be excellent in quality. They are well received in different countries and regions and are re-purchased in large quantities. We are proud that they are always mentioned in the industry and are examples for our peers who together with us will promote business development and upgrade. We only employ experienced professional service team who is highly enthusiastic and committed people. So they can ensure that the business goals of customers are met in a safe, timely, and cost-efficient manner. We have full support from our certified workers and engineers who are well-trained, thus we can provide innovative products through Best Cable Tester Supplier in China _ Noyafa to suit the needs of customers.
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Cable Fault Detection and Search Method
Cable Fault Detection and Search Method
For direct short circuit or broken cable fault, the multimeter can be used for direct measurement and judgment; For indirect short-circuit cable fault and grounding cable fault, use a megger to telemeter the insulation resistance between core wires or the insulation resistance between core wires and ground, and judge the cable fault type according to its resistance value. The following describes the method of cable fault finding: zero potential method. Zero potential method is also known as potential comparison method. It is suitable for short cable core to ground fault. This method is simple and accurate, and does not need precision instruments and complex calculation. The measurement principle is as follows: connect the cable fault core wire in parallel with the comparison wire of the same length. When applying voltage ve at both ends of B and C, it is equivalent to connecting the power supply at both ends of two parallel uniform resistance wires. At this time, the potential difference between any point on one resistance wire and the corresponding point on the other resistance wire must be zero. On the contrary, the two points with zero potential difference must be the corresponding points. Because the negative pole of the micro voltmeter is grounded and equipotential with the cable fault point, when the positive pole of the micro voltmeter moves to the point when the indicated value is zero on the comparison wire, it is equipotential with the cable fault point, that is, the corresponding point of the cable fault point. S refers to single-phase knife switch, e refers to 6e battery or 4 No. 1 dry batteries, and G refers to DC microvolt meter. The measurement steps are as follows: 1) connect battery E on phase B and C core lines, and then lay a comparison conductor s with the same length as the fault cable on the ground. The conductor shall be bare copper wire or bare aluminum wire, with equal cross section and no intermediate joint. 2) The negative pole of the micro voltmeter shall be grounded, and the positive pole shall be connected with a long flexible conductor. The other end of the conductor shall be fully contacted when sliding on the laid comparison conductor. 3) Close the knife switch s, slide the end of the flexible conductor on the comparison conductor, and the position when the microvolt meter indicates zero is the position of the cable fault point. High voltage bridge method high voltage bridge method is to measure the DC resistance of cable core with double arm bridge, then accurately measure the actual length of cable, and calculate the cable fault point according to the positive proportional relationship between cable length and resistance. For direct short circuit between cable cores or short circuit point, the contact resistance is less than 1 & omega; The judgment error is generally not greater than 3m, and the contact resistance at the fault point is greater than 1 & omega; The resistance can be reduced to 1 & Omega by increasing the voltage and burning through; Next, measure according to this method. When measuring the circuit, first measure the resistance R1 between core wires a and B, R1 = 2RX R, where Rx is the phase resistance value from phase a or phase B to the cable fault point, which is only the contact resistance of the short contact. Then move the bridge to the other end of the cable and measure the DC resistance R2 between A1 and B1 core wires, then R2 = 2R (l-x) r, and R (l-x) is the phase resistance from A1 phase or B1 phase core wire to the cable fault point. After measuring R1 and R2, short circuit B1 and C1 according to the circuit shown in Figure 3, and measure the DC resistance value between B and C core wires, then 1 / 2 of the organization is the resistance value of each phase core wire, expressed by RL, RL = RX R (l-x), from which the contact resistance value of the fault point can be obtained: r = R1, r2-2rl table. Therefore, the resistance value of the core wires on both sides of the fault point can be expressed by the following formula: RX = (r1-r) / 2, R (l-x) = (r2-r) /2. After the three values of Rx, R (l-x) and RL are determined, the distance X or (l-x) between the fault point and the cable end can be calculated according to the proportional formula: x = (Rx / RL) l, (l-x) = (R (L-2) At the end of the cable, measure the capacitance currents IA1, IB2 and IC3 of the core wire of each phase to check the capacitance ratio between the intact core wire and the broken core wire, and preliminarily judge the approximate point of the broken wire distance. According to the capacitance calculation formula C = I / (2 & PI; Fu), when the positive voltage U and frequency f do not change, C is directly proportional to I. because the frequency of power frequency voltage is f (frequency) Constant, as long as the applied voltage is kept constant during measurement, the ratio of capacitance to current is the ratio of capacitance. If the total length of the cable is l and the distance of the core wire breaking point is x, then IA / ic = L / x, x = (IC / IA) 50. In the process of measurement, as long as the voltage remains unchanged, the reading of ammeter is accurate and the total length of cable is measured accurately, the measurement error is relatively small. The so-called sound measurement method is to find out according to the discharge sound of faulty cable. This method is more effective for the flashover discharge of high-voltage cable core to insulating layer. The equipment used in this method is DC withstand voltage tester. TB is high-voltage test Transformer, C refers to high-voltage capacitor, ve refers to high-voltage rectifier silicon stack, R refers to current limiting resistance, Q refers to discharge ball gap, and l refers to cable core. When capacitor C is charged to a certain voltage value, the ball gap discharges to the cable fault core, and the cable core discharges to the insulating layer at the cable fault, producing a loud and loud spark discharge sound. For open laying cables, it can be found directly by hearing. If it is buried electricity For cable, first determine and mark the cable direction. When searching, put the pickup close to the ground and move slowly along the cable direction. When the sound of Zi and Zi discharge is the largest, this is the cable fault point. Pay attention to safety when using this method, and assign special personnel to monitor at the end of the test equipment and the end of the cable. The cable fault locator produced by our company can not only measure the sound, but also To detect the magnetic signal, the signal strength is displayed visually and synchronously, which can locate the cable fault point faster and more accurately.
Good Wire Fault Locator: Tips for Buying Good Wire Fault Locator
Good Wire Fault Locator: Tips for Buying Good Wire Fault Locator
An underground wire tracker will help you find wires buried in the ground where circuit breakers are located in the event of a power failure. This means that you can find out what is broken with a wirefinder without having to dig for days by hand. Kolsol F02 is a popular underground wire locator, which is a great investment for you.If you are a professional do-it-yourselfer, you need an adjustable receiver. It allows you to pick up signals in different areas to detect and locate wires. A good wire tracer should have an adjustable sensitivity mode so that the user can adjust it according to the situation and environment.Underground cable locators are able to activate and target multiple signals depending on the application, with lower frequencies providing better depth detection and higher frequencies being able to detect broken lines.Whether you are a professional contractor or a construction company, the purchase of an underground supply locator to identify underground sewer and water pipes, CATV cables, power lines, fiber optic cables or gas lines is crucial to the success of your project. We all want a system that can do everything, but it is important to use the right tools to do the right job.There are tons of underground cable detectors on the market, and they vary in depth, estimated frequency range, characteristics, durability, size and weight. Before choosing an underground wirefinder, you should find out what situation we are in. In this method, a signal is induced from a buried metallic utility using a signal transmitter, which allows the underground cable detector to locate and track the buried utility.The following pages introduce cables avoidance tools and pipe locators in cooperation with Cscope UK, a world-renowned manufacturer of cable and pipe locators, which has been industry standard for cable locators for over 25 years. We help you shop for safety and use the right positioning tools to help you reduce the risk of damage and personal injury when locating pipes and cables. EZI Cat100 Cable Detection Tool - used for basic prevention and localization of underground cables and pipes. EZICAT100 is designed to prevent damage Leica Utilifinder Cable Locator Tool (UTILI) - a finder system for locating buried power cables under your home or on your property.Armada GFL3000 Ground Fault Locator is a new, cost-effective service for contractors and maintenance personnel to find buried ground defects. Radiodetection Cat4 Cable Locator Avoidance Tool is the new improvement and successor of RadiodETection Cat 3 underground cable locator.Individual frequency units are a little easier to operate and provide a fast and effective way to find underground cables. All you need to do is connect a powerful signal transmitter to the underground cable and turn it on. Multi-frequency cable tracking devices offer more options in terms of cable types that can be detected for specific applications.For passive detection, a cable detector uses the power of the utility to pick up its electromagnetic field. A special probe locator is preferable, as it has been specially developed for probes. A wirefinder tuned at the same frequency as the probe picks up the signal.It is a cost-effective method to detect defects in fibers and glass, such as sharp curves, defective or faulty connectors, and other defects that cause red and green lights to leak. The GFL3000 (tm) is designed to locate cracks and cuts in underground cables and wires where voltage escapes from the ground.It can locate faults, OTDRs, dead zones and make fiber identification from one end to the other. Whether it's installing new fibers or troubleshooting an existing network, visual fault detection is a useful and practical kit.The CD series of controlled discharge systems for power capacitors includes some of the most powerful and fully-fledged fault locating systems available, including the industry's leading network system dampers. The VT-33 is the world's first combination of VLF / HIPOT cable fault locator and knocker. The SKD series product line is designed to produce packages of cable testing and fault locating equipment that need to be equipped with fault vehicles and cable testing trolleys to your specifications.This easy-to-use, low-cost tester has three tools: a cable troubleshooting device, a cable wire manager, and a sound generator with smarttone (tm) technology. With cable fault detectors you can find distances between open and short electric wires, telephone wires, safety wires and coaxial cables. The Radar Engineer Model 1669 is a portable time domain reflectometer and cable radar connected to a shock absorber connected to an arc reflex filter to locate highly resistant hole defects buried in primary power cables.The Meterk Wire Tracker is a powerful and reliable device which can track a wide range of wires located along walls and underground. It can trace all kinds of hidden wires, including fencing wire, electric wire, metal pipes, etc.There is a lot of good information on this guys channel. You can be amazed at what you can do with the earth gradient and think about its soil potential. I will try to explain how you can make the most of it. We recently experienced a short circuit on one of the legs of a buried 3 cable (20 caliber aluminum cable that runs about 150 meters from our house to the free-standing garage) on 2 hot neutral floors with 2 RHH and 60 mil XLP. I hope to find and repair it and seek your advice on how to find it most economically.You need to test the error in error tester mode before you delve into your error and carry out your repairs to make sure you have corrected it. If for any reason a signal should receive from the transmitter, but there is no ground gradient, move the transmitter to the other end of the wire. Remember to turn off the transmitter and make contacts in the contact area in order to check if you are looking for the source of the fall or not. As Aquatronics says, "57.3% A" is wrong.
What Are the Common Faults and Discrimination Methods of Cable Fault Tester
What Are the Common Faults and Discrimination Methods of Cable Fault Tester
1、 Cable fault type power cable fault is mainly due to mechanical damage, insulation aging, low construction quality, overvoltage, etc. The commonly used cables are cross-linked ethylene, non dripping oil type, oil immersed paper type, polyvinyl chloride and unknown type. According to the nature of cable fault, they can be divided into low resistance grounding or short circuit fault, high resistance grounding or short circuit fault, disconnection fault, disconnection and grounding fault and flashover fault. 2、 Firstly, we need a megger to measure the insulation resistance of each phase, and judge the fault type according to different insulation resistance values. 1. When we measure that the insulation resistance of the cable to the ground is lower than 100k Ω, it is a low resistance grounding fault. 2. When we measure that the insulation resistance of the cable to the ground deviates from the normal value or is higher than 100k Ω, it is a high-voltage cable fault. 3. When the ground resistance of the measuring cable is high or normal, conduct multiple tests on the conductor to check whether there is a wire break. If there is a wire break fault. 4. When the conductor of each core or multiple cores of the measuring cable is discontinuous, and then after multiple core to ground measurement, judge which type of the above three faults. 5. Flashover fault basically occurs in preventive voltage withstand test, cable terminal and middle joint. Sometimes flashover occurs many times, but the interval is a few seconds or minutes. 3、 Cable fault tester to find out cable fault methods: 1. With high-voltage equipment, it has the traditional impact high-voltage flashover method and low-voltage pulse method. 2. 2. Any high resistance fault presents simple waveform characteristics similar to low voltage pulse short circuit fault, which is very easy to interpret. 3. The cable fault tester finds the fault point through four main parts: cable fault location host, locator, Pathfinder and high-voltage signal generator.
How to Choose High-quality  Ip Cctv Tester
How to Choose High-quality Ip Cctv Tester
If you are installing an analog surveillance camera system, you might want to consider taking a few handy cables with you. Later on this blog post, we will delve into the types of cables you will encounter when you start a hard-wired surveillance camera system. Let's start with Ethernet cables, the most common cables you need for your hard-wired surveillance camera system.For an analog HD / TVI surveillance camera system you need Siamese RG-59 cables. With these cables, you can power your surveillance camera and receive video information from the camera when only one cable is running. Use a Siamese replacement cable for your surveillance cameras, use it for your computer, use a Siamese replacement cable for your printer or use it when your network needs something different.By using PoE switches and injectors, IP cameras can supply and transmit video with a single cable, reducing cable costs compared to CCTV. CCTV uses coaxial cables, while IP cameras use the standard Cat 5E and Cat 6 network cables.IP cameras work by twisting a pair of coaxial cables for a wireless connection. One of the advantages of IP cameras is that they can be powered by a pair of twisted Ethernet cables, eliminating the need to lay electrical wires. IP cameras have an aVision capability of IP that surpasses analog systems.Analog cameras, for example, require a separate cable to control pan, tilt and zoom functions. They are also vulnerable to security breaches as the feed can be intercepted and the recording device stolen. IP cameras can accept power, video, audio and PTZ controls and control the signal via a single cable.The cabling you want to install depends on what you have in the surveillance camera system and what type of camera you want to choose. Mounting a surveillance camera on the outside of a house may seem like a daunting task, but it is the only way to get a camera to work the way it is designed. When viewing a PTZ camera, you want to monitor the live video feed over a large area and be able to zoom in and see more detail, especially in the case of a security guard overlooking a parking lot.There are two types of video surveillance systems: CCTV (closed circuit television, also known as analog) and IP (also known as network cameras ). IP cameras are digital cameras that send signals over a cable and are stored in a network. They are the biggest technological advance in cameras ever produced.CCV systems convert the video signal into a format that can be used for television (video recorders and DVRs). IP cameras convert video signals into IP packets which are transmitted to a storage device such as a server (NAS) or stored on board the camera over a data network (Internet network). High-quality HDCVI cameras (Solid Copper Coax Roll-off) can transmit video up to 1,600 ft.The recorded H.264 video file can't be played in Windows Media Player when it is played by the tester. The video stream is not displayed on the tester if the data rate is close to 0 KB / s. For this reason, the video file must be converted to MP4 format before it can be played in the test.Some private security cameras have optical zoom lenses (digital zoom) that trim and enlarge the camera while shooting. The more megapixels the camera sensor has, the more you can zoom in to see things better. The 1080p is the standard resolution of the cameras we tested and will benefit from a model with a higher resolution sensor.The warranty does not cover operating system errors caused by third-party apps. You can use the built-in Chrome or Firefox web browser to download the camera app and camera information. We recommend that you use an existing VLC to play the video clips.Our security camera testers are designed to facilitate the installation, maintenance and testing of security cameras. A shopper who bought a CCTV camera tester used it to test his camera before he started installing it in his home. A closed circuit TV tester is a handy tool for professional installers of CCTV security systems and do-it-yourselfers to set up and configure CCTV cameras from any source.CCTV testers feature a colour LCD screen, video port, rechargeable lithium batteries and several types of colour bars for signal output. The Cat6 cable is the most widely used cable in the world and Balun is widely used, but wearing analog video destroys clarity, so the passive Balun should be used according to the manufacturer's recommendations. For a fast and dirty workshop, check the analog camera and look at the test card to show clarity outside the camera.The Evertech screen is not the best, he writes, but it's fine given the cost. A reviewer looking for a CCTV tester IP camera and monitor kit is stating that it comes at an unbeatable price, considering he only needs it for a single home security setup.The Koolertron GH iPCT98, which is hard to beat even for $300, runs on Android and iOS apps, meaning that you can download and install a word processor or calculator program and reduces the number of devices a technician has to take to the field.The vast majority of private surveillance cameras now have mobile apps, and many are focused on how to do it remotely. Web portals offer more flexibility to access your videos and notifications. Another aspect of the functionality that should not be overlooked by a CCTV tester is the ability to work with analog IP cameras.Additional features vary from camera to camera, but our top picks offer enough variety to separate them from the rest of the competition. Remember that these cameras are designed to help you keep track of what is happening around your home.
How to Use a High Voltage Detector Tester: 5 Key Tips You Should Know
How to Use a High Voltage Detector Tester: 5 Key Tips You Should Know
Any meter that can check voltage, current and resistance is called a multimeter. To prove that the electrical testing is new to us, we often ask our residents if they can teach an apprentice how to properly use a voltmeter or multimeter. Once you understand how to use a multimeter correctly, you can proceed to troubleshooting and troubleshooting electrical problems, checking sockets, checking continuity and more.Proximity to the voltage detector is a good first test, followed by direct contact with the meter. The voltage is relative to the two points at which it is measured by the meter, so a voltmeter must be connected to two points in the circuit to get a good measurement.As part of the test, the 70E requires a conductor circuit with phase phase phase and phase to ground. Note that this requirement does not apply to medium to high voltage systems, so proximity voltage detectors are the preferred test method.Non-contact voltage testers are the safest way to ensure that the current touches the wire. They light up and make no noise, but they can get very close to hot electric wires, especially those covered with plastic insulation.Select a low or high voltage level to verify the presence of a voltage contact with an energy-rich conductor. If you hear continuous chirping or see a series of flashes, confirm that the tester has detected voltage.Test your battery at every stage and measure your readings to optimum voltage. These tips lead to the use of a test circuit that you can see when working with your RV batteries.Some manufacturers of voltage sniffers recommend holding the tester with bare hands and keeping it close to the body. To use a two-pronged voltage tester, place a cable in a metal box containing the ground wire and a solid copper wire, and the other cable you are testing, but never use a two-pronged multimeter. The measurement of the signal allows calculations without the stress of a CT socket tester or circuit analyzer (practical socket voltage testers are ideal for checking voltages and showing if a socket wire is missing a wire, such as the grounding wire).Like any technology or device, your digital multimeter has a lifetime. A visual inspection can be carried out to check and ensure that your multimeter is working properly. Inspection of light must be carried out with electrical energy Floor inspection facilitates the repair of motor vehicles Inspection of a lamp is simple and inexpensive, especially for 12 volt vehicles.These multimeters have the same properties as a voltmeter and check current, resistance and continuity. At the top of the charts in the best-selling multimeter category, Kaiweets Digital Multimeter will do the work for you. It features accurate measurements of AC and DC voltage, AC / DC current and resistance, continuity, frequency, capacitance, diodes, liquid temperature, battery control and shutdown measures.If you do not have a multimeter, you can use a voltage detector instead of a voltmeter or a continuity test instead of an ohmmeter. User-friendliness has little to do with the multimeter that holds your readings for you, as you cannot see what you are working with on the screen. Use it instead to tell you if the white or black cable is in the inverted socket, or if the underground cable is inserted into the box or plugged into the socket.As soon as you receive a reading from your meter, check if it has a switch called DC. Be sure to follow the instructions to get the maximum amount of current that the meter can handle. To see how this works, let's look at a few examples to show how the meter is used.Use a low-voltage proximity tester to measure the circuit to be tested when the low-impedance voltage tester is connected. Figure 2 illustrates the final reading of the voltage displayed by the proximity testers and the voltage displayed by the tester. The tester measures the voltage (Figure 3) and if it is several volts above or below, it indicates the presence of a voltage, and if there is a voltage in the circuit, a power supply must be found before moving on.If the circuit voltage is lower than normal and the current is high, a harmful spark can occur the moment the last meter probe connection is established. In the multimeter version, the zero ohm resistance is tested with the probe tip (red) and the probe is plugged into the red current measuring socket. When the voltage is measured in this mode (red LED plugged into red V socket) and many mega ohm resistors are tested from the probe tip, the voltmeter is designed to be close to infinite resistance, so that it does not draw any significant current from the circuit's tested circuit.We used the voltage sniffer on a metallic light in a kitchen or sink to check if it was grounded. When the luminaire is not grounded, a hot wire comes into contact with it and the wire will supply the metal with energy, making an electric shock a hazard. The voltage sniffer found no power cables grounded in the metal wire.When using a voltage detector the following checks should be carried out: Check for optical damage, third party labels and indicate the date of the next routine inspection. Check whether the maximum permitted voltage range is can be used depending on the voltage rate of the power supply system (in mV / hV) (Note: 2 test ranges are possible with KP-Test 5 Dual Voltage Detektors as indicated by the number of green LEDs ). The voltage ranges available, the ATEX approval, the choice of tip and antenna shape vary according to the application of the volt stick, but the right product ensures safe work on site.I call it a voltage sniffer but the technical name for it is a capacitive voltage sensor. Inspectors use voltage sniffers for a few different things, so it's important to have one or two spare parts ready. Voltage sniffers use black magic to determine whether wires are alive or not, and they are 100% reliable at all times.
Instructions for Power Cable Fault Tester
Instructions for Power Cable Fault Tester
The power cable fault tester is a special cable testing equipment used to test the open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as the open circuit and short circuit faults of coaxial communication cables and local telephone cables. It can also test the cable path, buried depth, radio wave velocity, verify the cable length, and establish cable files for daily maintenance and management. â—† free on-site guidance, training and testing until the user is skilled and satisfied, and there are actual faults, which can be solved on site. â—† battery powered, truly portable; The test distance is greater than 40km. The host test error is less than 0.2m. â—† the host adopts industrial embedded computer system and 12.1-inch large screen LCD touch screen. â—† automatically select the sampling frequency, with a low of 6.25mhz and a high of 100MHz. â—† any double wave comparison function, test waveform can be stored, called, compressed and expanded arbitrarily. â—† the fault distance is automatically displayed, and the double cursor can move * * to 0.18m, which improves the test accuracy. â—† built in various field waveforms and field physical wiring diagrams for reference and learning. â—† cable data management software can establish perfect cable file management information. â—† high precision digital display fixed-point instrument, direct indication of the distance between the test end and the fault point, pioneered in China. â—† it can support wireless network card and carry out technical communication with our company anytime and anywhere. â—† the whole machine is guaranteed for three years, free training, free tracking service and free software upgrade. Dear customers: Hello, our company is a high-quality development group with strong technical force, providing users with high-quality products, complete solutions and superior technical services. The main products are high voltage cable fault locator, buried cable fault detector, live cable identifier, etc. The enterprise adheres to the tenet of building a business in good faith, keeping the business with quality and developing the business with enterprising. It continues to climb new peaks with a firmer pace and make contributions to the national automation industry. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
What Are the Places Where High Voltage Power Cables Are Most Prone to Failure
What Are the Places Where High Voltage Power Cables Are Most Prone to Failure
We all know that the cable needs to pass the test when it is officially put into the mall. However, the functions and methods of different cable tests are also different. The test method of high-voltage power cable is flicker method. Flicker method includes impulse flash and direct flash. Impulse flash method is also the most commonly used test method. Due to the high precision of impulse flash test, its operation is simple, safe and reliable. The equipment of flicker method is composed of two parts. The high-voltage attack equipment is used to generate DC high voltage or impulse high voltage, which will be applied to the faulty high-voltage power cable. The discharge at the fault point will produce a reflected signal. The current pulse meter is used to pick up the fault interval of the reflected signal, measure some faults such as open circuit, short circuit or low resistance. Fault resistance is also the place where faults are most likely to occur. Based on this measurement method. (1) When the resistance at the fault point is immeasurable, the open circuit fault can be quickly found by measuring with low-voltage pulse method. Simple open circuit faults are not often seen. Open circuit faults are phase to ground or phase to phase high resistance faults, and phase to phase or phase to phase low resistance faults exist together. (2) When the resistance of the defect point is greater than zero and less than 150 kiloohm, the cause of the low resistance problem can be found at will by measuring with the low-voltage pulse method. (3) When the resistance at the fault point is equal to zero, the defect of measuring short circuit by low-voltage pulse method can be found, but this problem is rarely encountered. (4) Flashover defects can be measured by direct flashover method. This problem is usually caused by questionable joints. When the resistance of the fault point is greater than 150 kiloohm, the value changes greatly, so it is very uncertain during measurement. The measured interval is the interval from the fault point to the cable test end; Otherwise, it is the interval from the fault point to the opposite end of the cable test. (5) With the progress of high-voltage power cable fault test skills, different methods should be used for different power cables. We should constantly improve skills and equipment. This allows the safe use of high-voltage cable power for a long time.
Best Cable Tester& Cable Tester Software
Best Cable Tester& Cable Tester Software
This article will help you find the best cable tester for your needs.A good cable tester is more than just a cable tester. It should be able to give a sufficient overview of the cable connections and be able to identify any problems with the connection.There are many different types of cable testers and they all do the same thing.In the cable industry, there is a need to test different cables, both for the purpose of quality assurance and in order to make sure that a certain product is compatible with different types of equipment.There are several software products available for testing cable, especially as they become more common in homes and businesses. Some of them have been designed specifically for testing cables. But the problem is that most of them require you to install it on your own computer or laptop first before you can use it. Some are hard to use and require too many settings so that you have to go through many options before finding an appropriate setting.This article will guide you through some tips on installing any cable tester properly so that you can quickly get your cable tested without having to do much research. It will also point out someWe have a cable tester, a type of cable plug that is used to ensure the quality of cables. The cable tester has four prongs and is connected to the main power supply by one wire. These wires are also connected in pairs: one goes to the positive terminal and another goes to the negative terminal. When you want to connect two wires together, you need to connect them first in pairs (with positive and negative terminals) and then separately in pairs (with positive and negative terminals) as shown below:In order for you to test whether or not two cables are connected properly, you will need a cable tester socket adapter. This device looks like an ordinary socket with only one wire on it. The connection between these two wires is made with an adapter. You can find theseIn order to make sure you get the best deals on TVs, Blu-ray players, etc., you need to do some research. You might have heard about a TV review site named "BestBuy" or a "Best Buy". You might also have found yourself going there to check out the latest offers only to be disappointed when your search didn't turn up anything interesting.As you've probably come to realize, there are a lot of possibilities when it comes to finding the best deals on TVs, Blu-ray players and other gadgets. But even if it is easier than ever before, there is still so much information that you need in order for these tradesmen and women to be able to offer quality recommendations.Best cable tester ensures that cables are properly connected to all the devices.With accurate, fast and reliable cable testers, you can easily save your business money.The cable tester software is an essential tool for any cable equipment buyer. It helps to assess the quality of a cable, measuring it's resistance and voltage.Cable testers have been in use since the 50's. The need for them is now less, but they are still widely used in the market.The best cable testers can help you to test Ethernet cables, power cables, phone wires and other wired connections. They also include various other inputs and outputs from home appliances like refrigerators, washing machines and dishwashers.The best cable testers can also be used in different situations to find out whether your device is working properly or not. If your computer isn't functioning properly, you should check the cable of it first before taking any action on it immediately to make sure that there are no faulty connections or miswired devices present in the system because of which your computer won't work properly at all. On the other hand if something goes wrong with a certain deviceToday's cable tester software/hardware is very sophisticated and works in a particular niche. This makes it a perfect fit for cable testers who are looking for precise information such as the channel number, the length of the cable and the condition of the cable.While there may be other software that can do these tasks, this software provides them quite well. This is why you should consider purchasing this software to get some competitive edge in your field.
How to Diagnose and Solve Cable Leakage with Cable Fault Tester
How to Diagnose and Solve Cable Leakage with Cable Fault Tester
How can the cable fault tester diagnose and solve the cable leakage? As the main cable fault, when the power cable leaks to the earth, it will produce a strong to weak directed electric field gradient around the fault point on the ground. The amplitude and direction of the signal can be measured by Bao Shun Tong cable fault measuring equipment along the cable path. Before and after the fault point, the direction pointed by the galvanometer pointer is opposite, so as to find the fault point of the cable and achieve the purpose of accurate positioning. 1. Cable fault diagnosis depends on the nature of the fault. Cable fault can be divided into low resistance grounding or short circuit fault, high resistance grounding or short circuit fault, wire break fault, wire break and grounding fault and flashover fault. Cable fault diagnosis can determine the type and severity of cable fault, and it is also convenient for testers to test it with different test methods according to different fault types. For example, for high resistance faults, the impulse flash method can be used to locate the fault location. 2. Cable fault location. Cable fault location is also called rough measurement. There are two rough measurement and location methods: electric bridge method and wave reflection method. At present, wave reflection locator is more popular. However, several cable faults are difficult to find by wave reflection method, such as insulation defect points of high-voltage cable sheath, steel tape armored low-pressure cable, PVC cable and short cable can not be located. In addition, some high breakdown points cannot be broken down under impulse voltage and are difficult to locate. 3. Cable fault point. It is also called precise measurement. The cable fault can be accurately fixed through the methods of acoustics, electromagnetism, electronic signal processing and electronic cancellation theory. The LCD can display the sound pulse, magnetic pulse and the distance between the fault point and the probe test point at the same time. At present, the cable fault can be accurately fixed by the following four methods: (1) Acoustic measurement method: the high-voltage pulse generator discharges the fault cable, the fault point generates an arc and generates a discharge sound. When the cable is directly buried, it generates a seismic wave. The acoustic probe of the pointing instrument picks up the seismic wave signal and amplifies it and outputs it through the headset or meter head. (2) Step voltage method: it is mainly aimed at the fixed point of outer sheath grounding fault with requirements for cable outer sheath insulation. Now, step voltage method can also be used for the fixed point of some directly buried unarmored low-voltage cables and wire core grounding fault. (3) Electromagnetic method and audio method: fix the point with electromagnetic wave or audio method, that is, determine the fault point by using the change of electromagnetic wave signal or audio signal at the front and rear points of cable fault. (4) Acoustic magnetic synchronization method of cable fault tester: it is the comprehensive application of acoustic measurement method and electromagnetic wave method. Then, according to the above operation methods, we believe that the fault point can be found soon, and we can quickly repair and restore the normal operation of power.
Pulse Method of Cable Fault Tester
Pulse Method of Cable Fault Tester
Cable plays a very important role in daily life. If the cable fails, find the fault point in time and then repair it. Cable fault detector is the preferred tool for cable maintenance. It can accurately find the fault point, and then the construction personnel can carry out maintenance quickly, which is very effective in improving work efficiency. Today, we follow the cable fault tester manufacturer to understand what pulse method is. Working principle of power cable fault tester power cable fault tester consists of three main parts: power cable fault tester host, cable fault locator and cable path tester. The host of the cable fault tester is used to measure the nature and total length of the cable fault and the approximate position between the cable fault point and the test end. The cable fault locator determines the location of the cable fault point based on the approximate location of the cable fault point determined by the host of the cable fault tester. For buried cables with unknown direction, a pathfinder shall be used to determine the underground direction of the cable. The basic method of power cable fault test is to apply high-voltage pulse to the fault power cable to produce breakdown at the cable fault point. When the cable fault breakdown point discharges, it generates electromagnetic wave and sound at the same time. The working principle of the application of arc reflection method (secondary pulse method) in cable fault location: firstly, a high voltage pulse with a certain voltage level and energy is applied to the faulty cable at the test end of the cable to make the high resistance fault point of the cable break down and burn arc. At the same time, add the low-voltage pulse for measurement at the test end. When the measurement pulse reaches the high resistance fault point of the cable, it encounters an arc and reflects on the surface of the arc. When arcing, the high resistance fault becomes an instantaneous short-circuit fault, and the low-voltage measurement pulse will change obviously in impedance characteristics, so that the waveform of flashover measurement becomes a low-voltage pulse short-circuit waveform, making the waveform discrimination particularly simple and clear. This is what we call the secondary pulse method. The received low-voltage pulse reflection waveform is equivalent to the waveform of a complete short circuit between the core and the ground. Superimpose the low-voltage pulse waveform obtained when releasing the high-voltage pulse and when not releasing the high-voltage pulse. The two waveforms will have a divergence point, which is the reflected waveform point of the fault point. This method combines low-voltage pulse method with high-voltage flashover technology, which makes it easier for testers to judge the location of fault point. Compared with the traditional test methods, the advantage of the secondary pulse method is to simplify the complex waveform in the impulse high-voltage flashover method into a simple low-voltage pulse short-circuit fault waveform, so the interpretation is very simple and the fault distance can be accurately calibrated. The multiple pulse method adopts the double impact method to prolong the arc burning time and stabilize the arc, which can easily locate the high resistance fault and flashover fault. Cable fault tester manufacturers believe that the multiple pulse method has advanced technology, simple operation, clear waveform and fast and accurate positioning. At present, it has become the mainstream positioning method of high resistance fault and flashover fault. The multiple pulse method is an upgrade of the secondary pulse method. The method is to first measure the reflected waveform of the low-voltage pulse without breaking through the fault point of the measured cable, then impact the fault point of the cable with the high-voltage pulse to generate an arc, trigger the medium voltage pulse when the arc voltage drops to a certain value to stabilize and prolong the arc time, and then send the low-voltage pulse, Thus, the reflected waveform of the fault point is obtained. After the superposition of the two waveforms, it can also be found that the divergence point is the corresponding position of the fault point. Because the medium voltage pulse is used to stabilize and prolong the arc time, it is easier to obtain the fault point waveform than the secondary pulse method. Compared with the secondary pulse method, the triple pulse method does not need to select the synchronization time of arc burning, and the operation is also more simple. Cable fault tester is a comprehensive cable fault detection instrument. It can test the high resistance flashover fault, high and low resistance grounding, short circuit, cable disconnection, poor contact and other faults of the cable. If equipped with the acoustic method pointing instrument, it can accurately determine the position of the fault point. It is especially suitable for testing power cables and communication cables of various models and different levels of voltage. The above is the introduction of the pulse method by the cable fault tester manufacturer, hoping to provide help to those in need.
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