Shop Best Cable Fault Tester Manufacturer in NOYAFA

Shop Best Cable Fault Tester Manufacturer in NOYAFA

2021-11-05
NOYAFA
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SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED is dedicated to providing high-quality products, such as Cable fault tester manufacturer. Since the inception, we have been committed to continued investment in the product and technology R&D, in the production process, and in the manufacturing facilities to constantly improve product quality. We have also implemented a strict quality management system to control the quality throughout the whole production process, through which all defects would be thoroughly eliminated.We rely on NOYAFA to promote our products. Since they are launched, the products have been highly appraised by the market for bringing value to customers. Gradually, they shape the brand image into a reliable one. Customers prefer to choose our products among other suchlike. When the new products are marketed, customers are willing to try them. Therefore, our products gain continuous sales growth.To provide customers with on-time delivery, as we promise on Best Cable Tester Supplier in China _ Noyafa, we have developed an uninterrupted material supply chain by increasing collaboration with our suppliers to ensure that they can supply us required materials timely, avoiding any delay of production. We usually make a detailed production plan before production, enabling us to carry out production in a quick and accurate manner. For the shipping, we work with many reliable logistics companies to ensure the goods arrives at destination punctually and safely.
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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.
How to Choose the Right Bnc Coax Cable Tester
How to Choose the Right Bnc Coax Cable Tester
This type of cable supplies power to the device in question and transmits the video signal to the output. The prefabricated Siamese cable is available in various lengths to keep most camera cables at a distance. The optical cable tester includes a plug for visible light sources that is compatible with the optical cable installation.A cable tester is a microcontroller that displays and automates the test process and displays the test results for multi-wire cables. It connects to the end of the cable separately with a display of the current source portion to allow the injection of test current from one end of a cable to detect the results from a remote end.To check a USB cable, you can perform simple USB tests by connecting the cable end to the appropriate port on the cable tester. You can also check your cloud services, data communications and data transmission by testing connection stability with network cable testers.There are a number of methods to test coaxial cables to obtain a reliable signal frequency. Following are the steps to test a coaxial cable with the help of a multimeter probe. This is a reliable method to test the coaxial cable without signal loss.A network cable tester is a revolutionary device designed to test the reliability and capability of cable connections. It is a necessity for network technicians, network testers, cable testers and other related work in this field. Cable network testers are not only reliable, but also able to fix problems and help you identify cable problems and connection problems.The coaxial cable RG-179 uses a 7.5 Ohm BNC connector and can be used in high temperatures. RG-6 coaxial cable is the "coaxial cable for the Internet" - it is used to transmit the signal over the Internet connection (the Internet signal runs at a higher frequency than traditional analog video). It can be operated up to a distance of RG-59 without loss of the video signal, but it is a thick and rigid cable that is not comfortable to work with.The RG-174 coaxial cable uses the 50 ohm BNC connector and is thin enough for wide applications such as GPS navigation antennas for cars and many vehicles. RG58 coaxial cables use the 50 ohm BNC connectors and are versatile due to their performance. The RG-59 coaxial cable is used to transmit video signals from a CCTV camera to a monitor in another room.Although 75 Ohm coax is likely the impedance found in most of today's applications, it is important to note that all components of a coaxial cabling system must have the same impedance to avoid internal reflections at connecting points that can cause signal loss and poor video quality. High-capacity cables can distort the transmission of digital signals by reducing the distinction between graduated peaks and sinks. 75 ohm coaxial cables are therefore of great benefit for digital transmission, and their lower capacity than 50 ohm cables ensures that all digital transmission passes through the wire with minimal losses or distortions.Digital Signal 3 signals (DS3 signals), which are used to transmit data traffic to the control panels, are called T3 lines and use coaxial cables comprising 7.5 ohms (type 735) and type 734. Type 735 cables are used for distances of up to 6.9 metres, while type 734 cables can be used for distances of up to 13.7 metres.There are various types of adapters for BNC connectors, including T connectors, cylinder connectors and terminators. They can be plugged into any type of connector or SDI signal transport connector.Choosing the right cable is a major problem that plagues most companies and teams. Choosing the right BNC connector for the cable for your project comes at a price. To avoid problems with your network, use BNC connectors instead of compressing or bolting cables.This guide to cabling security cameras provides a practical explanation of the cable types of surveillance cameras and termination cables for easy installation. Siamese cables for surveillance cameras are a two-wire solution with a cable assembly that enables easy video and power transmission to the BNC camera. Curveball Cat5E and Cat6 cables are used to send the video signal to the camera using a video balun adapter.When using a video balun network, the cable does not tip over and requires the lead wire to be exposed by removing the outer layer of the wire at each end.Connect one end of the coaxial cable tester to the socket and bring the other end to a point where several coaxial signal cables meet. The video signal and power supply are transmitted via a single network cable, similar to how Siamese cables work. Another method for network cables is to crimp the RJ45 connector and plug it into the socket of a video power baloon.When you touch the multimeter probe on the end of the right coaxial cable, the meter reads 0 but you will see different readings on the other cables.If your coaxial cable is on the wall, connect an end of the coaxial cable tester to the wall plate and point the other end to the tester to facilitate assembly of the entire cable. To find the right cable, touch the cable one way or the other and a beep will be generated. If it is the antenna on your roof, you can use a multimeter with an aluminum coil to track the right end of a particular coaxial cable.Once you traced and identified the coaxial signal of the cable that you want to test with a multimeter, the next step is to figure out how to perform the task. Touch the center of the conductor end of your coaxial cable with the multimeter probe.Confirm that the shielding patency at both ends of your coaxial cable is in good condition. A second test should be performed on the coaxial cable to determine the status of the screen continuity.
Best Test Tools for Wire Testers
Best Test Tools for Wire Testers
Automation software tools are now making their way into the testing arena. And rightfully so. There is a lot of value in knowing that you can automate many important steps so that you can spend more time on the actual testing and less time on the manual process. What's more, it allows you to see what actually went wrong during your testing process - instead of just seeing if something happened at all.Wire testers are an important part of any testing workflow. They should be very accurate and precise when they do their job: They must send out a test email once per day, which is usually only 20-30 minutes long, check the email sent by the wire tester and report any issues there to your internal team or external client’s team via email.There are many automated software tools for wire testers. But none of them is suitable for a complete automation of the testing process.The solution to this issue is AI-based software. AI allows you to automate the testing process by writing simple scripts, which will run through all steps in the test process and check if they passed or failed. In turn, this is a significant improvement over manual test automation because you can focus on other aspects such as content creation and research, rather than on test automation itself.The Android wire tester helps the creator to perform quick and precise checks on Android applications.If you want to improve the quality of your development work, there are a number of tools which can help. They can help you by:The best Android wire tester can expose potential vulnerabilities in your application and help you to find them.Automation software and automation testing are controversial fields in the testing community. Until now, automated tests have been manual and they were done by a human tester.Nowadays, there are companies that offer artificial intelligence to automate their existing test procedures.Automated testing is becoming an important part of modern software testing.It's a common practice to test the same code over and over again to find potential bugs. There are many different tools available for automating this kind of tasks, but the most popular one is Automated Wire Tester (AWT) .We can automate the creation of reports from those tests. We create a report for every code change that we make. We can also create reports for typos, spelling mistakes and so on. This kind of automated reporting tool is helpful for our testers as it saves them time and helps them be more efficient in their work.When you read a new Android phone, it's important to know if it is worth buying.Automation software can help with wire testing by automating tasks and saving time. Automation software is intended to replace humans in certain technical roles, such as wire testers.Wire testers are human beings who work on the various parts and aspects of computer systems, and gather information about them. Automation software can be used when the system is not available or because human beings are not available for certain tasks (e.g., during infrastructure upgrades).A good Android app wire tester should not just test your apps, but should also save you time and money.A good Android Wire Tester is important for few reasons. First of all, it can provide key information about the device by analyzing the device's behavior. Secondly, it can provide a quick insight into your desired user experience which will help in improving your marketing strategies or sales goals.Automation can be used to enhance the quality of wire testers.Tracing the evolution of the role of automation software in the Wire Tester industry is a complex and fascinating topic. While some companies have invested heavily in automation software for wire testers, others have not. The reason has to do with two key reasons:#1 They are unwilling to invest too heavily in a new technology and they don't want to alienate their existing customers#2 They don't think that automation is necessary at all. There are simply no applications that need it at all at this point in time. One could argue that infrastructure is still lacking but I personally believe that this argument isn't valid anymore given today's state of the art technologies such as CNC machines and 3D printers, etc. Thus, today's
How to Choose Fiber Optical Tester
How to Choose Fiber Optical Tester
Transmitter and receiver jack are fiber optic connectors that measure the power of the transmitter by connecting the test cable to the source and measuring power at the other end. The receiver is the one who disconnects the cable attached to the receiver jacks and measures the output with one meter.Other methods of testing fibre optic connections include starting the cable from the receiving cable and connecting it to an electricity meter. The standard loss test is an installed cable system that includes loss measurement to test the cable connection at each end. If you can, you can measure the loss from a connector connected to a reference cable, a loss fiber connection, or any other connector on the cable you want to test.This allows you to measure the two lost connectors at one end and the loss from cable to cable. The source counter duplicates the transmitter and receiver of the fiber-optic transmission connection, so that the measurements correlate with the actual system loss. The optical return loss (ORL) is expressed in decibels (dB) and affects how the light source or fiber reduces the data transmission speed.The optical time domain reflectionometer (OTDR) is used as a fiber optic cable tester to test optical losses. Using a high intensity laser light that emits a predefined pulse interval and is connected to the cable at one end, the cable is guided through an OTDR to analyze the backscattering of the light returning to the source location. A simple instrument that injects visible light is called a fiber tracer or visual fault locating mechanism.Calibrated optical light sources (OLs) can be used with an optical power meter (OPM) in conjunction with an OPM to quantify the insertion loss of the members during powering on. An important test of loss of input in an installed fiber optic cable system is performed with a light source power meter (LSPM), while an optical loss test kit (OLT) is required as an international standard to ensure that the system has a loss budget for acceptance and installation. The OLT, which uses both optical light sources and power meters, is considered the best fiber test practice to ensure the optical power budget and design specifications.Two devices are required to test the end-to-end performance of a fiber optic system: an OPM test and a light source. The testing of optical fibres requires special tools and instruments to select the appropriate components for the cable system to be tested. The source of the power meter, the optical loss test kit (OLT) and the appropriate device adapter are the cables and equipment you will test.Outside the fiber system, cables with an OTDR are tested for end-to-end losses to ensure that the installation is carried out correctly. The OTDR can also be used for troubleshooting, e.g. Interruptions in places due to excavations. Installers are often asked to use a loss test set up with a source current meter and OtDR to perform bidirectional tests, provide accurate cable documentation and certify their work.This video gives you a clear test procedure for fiber power meters and shows you how to test fiber adoption losses with two fiber optic test devices. Testing light sources of power meters is also known as the One-Jumper method as the most accurate way to measure the end-to-end signal loss in the fiber known as attenuation. If the light source operates at a wavelength of 1310 nm, for example, the optical power meter is set to 1310 for testing.The OLT Optical Loss Test Kit is a mainstay in the testing of fiber optic cables as it provides a precise method for the total loss of a connection as required by industry standards to ensure that the connection meets the loss requirements of a particular application. When fiber optic cables are in the facility, you need to test for continuity and end-to-end losses to resolve problems. Regardless of whether it is a long installation cable or an intermediate cable, you want to verify every single connection with an OTDR, because this is the only way to ensure that each one is good.Knowing how to select, install and maintain fiber optic cables is important to optimize system results. Combines fiber spectroscopic analysis systems to achieve optimal performance and results. Inline and flexible fiber-optic process analyzers and systems enable the user to place measuring probes at several points on one instrument, thereby reducing costs.Patented fiber constructions with emphasis on high-quality materials and spectroscopically guided waves are designed for high transmission efficiency and durability. The significant increase in the number of applications supporting data centres has resulted in more cable connections being established than ever before, and available space is a priority. Fusion splicing is used for FTTH applications to install connectors. Drop cable customers can use the new splice connector technology for fall cable fusion splicers.For example, expensive 10G certified Cat6A cables can be used instead of duplex fiber-optic cables, which require expensive transceivers. As a result, high-density solutions such as MTP / MPO connectors and multi-fiber cables, which require less wire space than single duplex cables, are becoming increasingly popular. While some manufacturers offer locally installed MTP and MPO connectors, many data center managers opt for Multi-Fiber Trunk Cable (MTP) or MPO (Factory Terminated End Fusion Splicing) or pre-terminated MTP (MPO) or Multi- Fiber LC Pigtails.They combine a fiber optic cable with a transceiver and eliminate the connectors. Fiber optic cables, also known as fiber optic cables, transmit data in light pulses through flexible pure fibers, glass or plastics. Thanks to their high data transmission speeds over long distances, they have become a popular choice for Ethernet networks and telecommunications applications.With thousands of connections, excessive slack leads to a lot of congestion, which restricts the proper airflow and cooling. An alternative is the purchase of multi-fiber pigtails that can be spliced into a multi-fiber cable. Sharp bends of 1.5 cm radius should be avoided, as they strain the fiber and cause optical losses.
Function of Underground Pipeline Detector in Cable Maintenance
Function of Underground Pipeline Detector in Cable Maintenance
Surface water pipelines refer to water supply, drainage (rainwater, sewage), gas, electric power, communication, heating, industrial and other pipelines. It is an important part of urban infrastructure and the basic basis of urban planning, construction and management. At present, the electromagnetic method based on the law of electromagnetic induction is the most convenient, effective and commonly used in the detection of underground pipelines. Underground pipeline detector is one such device. The receiver measures the change of the secondary field generated by the underground pipeline under the action of the transmitting airport on the ground, so as to judge the spatial position of the underground pipeline. It is generally believed that the secondary field excited by a straight line can be regarded as the electromagnetic field generated by an infinite straight line. The receiving device locates the pipeline and determines the depth according to such electromagnetic field changes. The experimental results show that the measurement results are very accurate without the interference of other pipeline fields. In order to detect pipelines accurately, quickly and efficiently, different detection methods should be selected according to the characteristics of underground pipelines. The buried pipe detector uses the principle of electromagnetic induction to detect the precise direction and depth of underground metal pipelines and cables, and find out the fault points outside the pipeline. The buried pipe detector has the functions of intelligent, graphic operation indication and audio modulation indication of all Chinese characters. It is the most convenient buried pipe detector. The built-in ohmmeter of the transmitter can automatically measure the loop resistance and automatically match the continuous output impedance to ensure the excellent output signal. The instrument can select the coupling according to the needs of practical application. Under the condition of continuous power supply, it can be used to find the path of live cable for testing. Using the 50Hz detection function of the receiver, it can also track the 50Hz power frequency signal sent by the running cable, truly achieve one machine with multiple functions, and has the best performance and cost performance. Its basic working principle is that the transmitter generates electromagnetic wave and transmits the transmitted signal to the detected underground metal pipeline through different transmission connection modes. When the underground metal pipeline senses electromagnetic wave, induced current is generated on its surface, and the induced current propagates far along the metal pipeline. In the process of current propagation, The electromagnetic wave is radiated to the ground through the underground metal pipeline. Therefore, when the underground pipeline detector detects on the ground, the electromagnetic wave signal will be received on the ground directly above the underground metal pipeline. Through the change of signal strength, the position and direction of the underground metal pipeline can be judged. According to the detection principle, underground pipeline detectors are divided into two categories. One is to detect metal markings in metal pipelines, electric / optical cables and some non-metallic pipelines by using the principle of electromagnetic induction, which is called pipeline detectors for short; The other is the use of electromagnetic waves to detect underground pipelines of various materials, which can also be used to find buried objects, commonly known as radar or pipeline radar.
How to Test Your Cable/ Internet Connection: 3 Ways to Check That It's Working Or Not
How to Test Your Cable/ Internet Connection: 3 Ways to Check That It's Working Or Not
...Testing your cable/internet connection is very important, but there are three ways to test it and each of them will take a little bit of time and patience. If you have your cable/internet connection working then it will be ready to use, but if you have a problem with your cable/internet connection, you should test it first. Once you have found the problem with your cable/internet connection, you can take the cable/internet connection to a technician or look for a replacement.There are lots of ways to check your internet connection and a couple of methods that we could use would be through WIFI testers, Wire cutters and If you use your phone for internet browsing you should check that it's not a virus. Even if you do not have access to a smartphone you should check that your internet connection is working.Is your Internet connection not working as it should? Or maybe you have a problem with your cable? If you have problems with your cable, a few simple steps can be followed to see if it is working properly.... To test your cable/internet connection, do the following.In the UK and USA we have so many devices and computers connected to the internet. Most of these devices have a data plan that will provide you with a broadband connection. Some of these devices will allow you to access other internet services, like video streaming. If you have an unlimited data plan then it is a good idea to check the connection you have to see if it is working or not.This article is a great place to start if you're a blogger who wants to find out how to test your internet connection or cable. Even if you are in a business that relies on a cable connection or internet connection it is a good idea to check your connection at least once a week. It is the same for a phone line, even if you have an internet connection it is important to check it too. There are several ways to check your connection, you could get a signal on your phone but it would not give you the full picture, so you could get your signal on your computer. There are many ways to check your connection.
Tips to Clean Stainless Non Contact Voltage Tester
Tips to Clean Stainless Non Contact Voltage Tester
You do not want to use hard abrasives or chemicals that leave a dirty film or stain on the surface. Avoid abrasives and abrasive powders such as steel wool, as these can scratch and damage the finished material. Avoid using abrasive powder or steel wool with bleach or ammonia, which can damage the texture and shine of the stainless steel surface.Some popular cleaning products can damage the surface of stainless steel, and clear water can leave marks and stains if not used properly. Do not use gravelly, dirty or hard water as it can leave stains and brownish stains. Choose a cleaner that is designed for use with stainless steel and start with a gentle cleaner that you can use with a little elbow grease to clean the surface.A soft cloth, moistened with warm water, is sufficient for general cleaning. Use a grease cleaner available at your local hardware store or grocery store and follow the manufacturer's instructions. Apply a non-abrasive cleanser like a soft scrub with a damp sponge and rub off the cleaner.Most filters can be placed in the dishwasher at low heat for a short cycle with a phosphate-free detergent. Of course, like other items in a dishwasher, filters can collect food residues. Filters can be washed by hand in warm water with a phosphate-free detergent such as Dawn.A light paste of baking soda and water acts as a light abrasive to neutralize the remaining acid. Apply the paste to the clean surface with a soft sponge and rub off any haze that might affect the surface or pattern towards the existing surface.Clouds can lead to a stain that can be cleaned so that when removed it is too thin to spread a blurry film. Non-powder coated metal parts, including hardware, are susceptible to corrosion and discoloration. It is recommended to pay special attention to these components during cleaning.There are numerous non-abrasive cleaners and polishes specifically designed for the use of stainless steel. Utilising something like Bon-Ami (r) Cleaner for non-coated or coated surfaces can help minimize corrosion and maintain the appearance of non-coated metal lift components, including hardware. My personal favorite for stainless steel cleaning is the 3M stainless steel cleaner (available on Amazon), but there are several other recommended brands available, including Bar Keeper Friends (available on Amazon ), Cerama Bryte (available on Amazon ), Sprayway (also available on Amazon) and Weiman (available on Amazon ).To make things easier, we have our own brand of water-based stainless steel cleaners that clean gloss, scratches and water stains while retaining the original surface of the stainless steel. If in doubt, test your stainless steel by cleaning the surfaces hidden on the back and sides and then moving the clean stainless steel into visible areas, including the front of the appliance and the tops of the kitchen counters. If you hesitate with stainless steels other than household appliances, there are finishing options such as Classic White, Black, Matte Black and Black Stainless Steel.For cleaning you can use alcohol or other household cleaners such as formula 409, lysol (r) or pine sol (r). Stainless steel is an iron-based alloy that contains chromium that combines with oxygen to form an invisible protective film on the surface, but this film is not stainless. Follow the above procedures to inspect and maintain sealed steel rails and ladders.Non-contact voltage testers are a safe method to ensure that the wires are not touched by current. They light up and make no noise when they come near hot, current-carrying wires, especially those covered with plastic insulation. If you hear continuous chirping or see a series of flashes, this confirms that the tester has detected voltage.On Android, make sure Bluetooth is turned on in your phone's settings and start the tying process on Android. To do this on iOS, your mobile device under the hood must be connected via Bluetooth. If you do not find a device named Zephyr XXX under the hood on iOS during this process, make sure the device is in mating mode.The newest and best commercial cleaners are not the best, but stainless steel cleaners are the safest. Try out some DIY cleaners on your appliances to see for yourself and remember to test the stainless steel cleaner on site before using it.
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.
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!
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During 15 years development, Noyafa has become the most famous brand in cable testing industry in China. With excellent production capability, reliable quality, good after-sales service, we get good reputation from customers all over the world.
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