What Is Digital Wire Tracker?

What Is Digital Wire Tracker?

2021-10-25
NOYAFA
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SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED has efficiently manufactured products like Digital Wire Tracker with high performance. We utilize the finest craftsmanship and invest a lot in updating machines to make sure the production can be high efficiency. Also, we test each product thoroughly to guarantee the product outperforms well in long-lasting performance and service life.NOYAFA has been integrating our brand mission, that is, professionalism, into every aspect of the customer experience. The goal of our brand is to differentiate from the competition and to convince clients to choose to cooperate with us over other brands with our strong spirit of professionalism delivered in the NOYAFA branded products and services.Customer-driven customization is conducted through Best Cable Tester Supplier in China _ Noyafa to fulfill the unique needs. With years of experience in the industry, we have cultivated a team of expert willing to serve the customers and tailor Digital Wire Tracker to their needs.
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List of Fault Finding and Detection Methods for Low Voltage Cables
List of Fault Finding and Detection Methods for Low Voltage Cables
Generally, the radiation path of high-voltage cable is easy to determine, but the high-voltage cable needs to be filled with sand bricks to be deeply buried. Its fault point is difficult to find. The radiation length of low-voltage cable is short, the radiation is random and the path is unclear. The following small series will introduce the fault finding and detection methods of low-voltage cables. You can simply understand. In order to solve the problem of low-voltage cable fault, researchers have developed and produced a cable fault tester based on the principle of impulse flash method. In order to find and detect the fault of low-voltage cable, first measure the distance with rangefinder. In fact, first judge whether the cable fault is high resistance, low resistance or grounding, and adopt different test methods according to this condition. If it is a ground fault, the low-voltage pulse method of the rangefinder is directly used to measure the distance; If it is a high resistance fault, the high-voltage impulse discharge method should be used to measure the distance. When using the high-voltage impulse discharge method to measure the distance, there are many auxiliary equipment: such as high-voltage pulse capacitor, discharge ball, current limiting resistance, inductive coil and signal sampler. The operation is troublesome, unsafe and dangerous. What is more cumbersome is to analyze the sampling waveform, The knowledge requirements of testers are relatively high. The second step is to find the path (this step can be omitted if the path is clear). When finding the path, add a signal (path signal generator) to the cable, and then the receiver receives the signal. Walk along the path with the signal once to determine the path of the cable. However, the range of this path is about 1-2 meters, which is not particularly accurate. The third step is to accurately locate according to the measured distance. It is based on the sound generated by ignition and discharge. When a loud sound is heard from the headset of the pointing instrument, that is, the location of the fault point is found. Due to listening to the sound, it takes a lot of time to find it due to the influence of environmental noise. Sometimes it can't be found until the evening. When it comes to cross-linked cables, it takes more time. Generally, the sound of internal discharge of cross-linked cables is very small. After almost no hearing, it is only measured. Therefore, this method can solve most of the power cable faults with oil impregnated paper as insulating material. For the cable faults with crosslinked material and polyethylene material as insulating material in recent years, the test effect is not ideal, because the sound generated by ignition and discharge is often very small (the cable skin is not damaged, but the internal discharge of the cable), In this case, only other methods can be used to solve it. We know that the insulation requirements of low-voltage cables are low, and the current is large during operation, which has obvious characteristics after failure. It is specifically classified as follows: class I fault: the whole cable is burned out or a phase is burned out. This fault causes the current relay on the distribution cabinet to act, and the cable is seriously damaged at the fault. Class II fault: each phase of the cable is short circuited. Similarly, this kind of fault causes the current relay and voltage relay on the distribution cabinet to act, and the cable is seriously damaged at the fault point (possibly caused by external force). Class III fault: the cable has only one phase open circuit, the current relay acts, and the damage at the fault point is light but obvious. It may be that the phase current is too large or caused by the cable quality. Four types of faults: internal short circuit of cable, no trace can be seen on the surface. Such faults are generally caused by cable quality, which is relatively rare.
Brief Introduction of Cable Fault Locator
Brief Introduction of Cable Fault Locator
The basic function of cable fault locator is in the power industry and some industries using cables, especially in some complex power systems. It is very difficult to find the fault of underground cable lines. However, in this regard, the continuous emergence of equipment with various functions and simple operation can not only reduce the high cost of fault detection, but also reduce the inevitable long-time power failure when difficult to find (cable fault locator) cable fault, which brings a lot of convenience to troubleshooting. Direct buried cable fault detection in underground direct buried cable and underground residential power distribution (URD) system is a very time-consuming thing, and will cause very inconvenient power failure to users. Some technologies may also damage the cable. For some equipment with high technical requirements, its operation is more complex, and only operators with strict training can use it, which brings a lot of inconvenience to the popularization and application of this kind of technical equipment. Therefore, the selection of appropriate technology depends partly on the knowledge of cable system design understood by the designer of fault detector, and also partly on the professional and technical knowledge of equipment and operators in this regard. With appropriate equipment and professional technology working on site, it is the first step to detect faults quickly and effectively. Hammering (pulse) method many power companies use hammering (pulse) method. This technique is effective in detecting high resistance faults in a simple (cable fault locator) cable system. The hammering method includes using a pulse or impulse voltage to impact the power cut cable. When an effective high voltage pulse strikes the fault area, the fault point flashover and produces a hammering sound that can be heard by the operator along the cable surface. However, detecting cable faults often requires several hammers, and repeated shocks may damage the cable. 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 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!
Do You Know How to Purchase Cable Fault Tester
Do You Know How to Purchase Cable Fault Tester
In today's society, electricity is one of the indispensable and important resources in people's life. Cables bear the responsibility of transporting electric energy. We all know that anything used for a long time may fail, and so does cables. Cable fault detector is a special equipment to solve cable fault. Xiaobian will show you how to purchase cable fault tester today. Electric power has been a necessary resource for people's daily life. The State Grid is all over the country. Due to the actual needs of cable production process fault resolution and customer site cable fault location, not only cable manufacturers buy cable fault detectors to solve all kinds of cable faults in the actual cable production process and customer use site. Power companies rely on cable fault tester to accurately and quickly solve cable fault points and quickly modify power (or communication) faults. Therefore, the configuration of cable fault tester is different according to different occasions and requirements. As a cable manufacturer, when purchasing the cable fault detector, it is purchased in complete sets of high and low voltage, and the equipment components are 6-10 pieces. In case of direct buried cable fault location at the customer's site, the handling and transportation of the whole set of equipment must be transported by a special cable fault detection vehicle, otherwise the transportation quality of the instrument is not guaranteed. There are also some special cable fault detectors, such as the railway household coat cable fault detector. More specifically, it can be called the railway single core cable outer sheath fault tester. These two configured cable fault testers are suitable for railway. According to the characteristics of railway cable outer sheath fault, under the condition of separation of cable sheath and shielding layer, The bridge method or voltage drop method is used to initially measure the grounding fault of the cable outer sheath, and then cooperate with the special receiver to accurately find the fault point. At present, the cable fault detector sold on the market is mainly divided into two types: 1. It is a cable fault detector designed according to the principle of echo method: the components mainly include intelligent waveform detection analyzer, Pathfinder, DC high-voltage generator (including console and AC / DC high-voltage test transformer), capacitance, ball gap, pointing instrument, etc. 2. It is a cable fault detector designed and manufactured according to the principle of bridge method: the components mainly include fault location bridge (high and low voltage bridge), pointing instrument, path instrument, wave reflection fault location instrument, etc. The above two kinds of cable fault detectors include coarse side positioning part and accurate fixed point part of cable fault. Intelligent cable fault tester will be a new demand. The above is the purchasing knowledge of cable fault tester. I hope it can help those in need.
Fiber Optical Tester - How to Use the Best One for Your Needs
Fiber Optical Tester - How to Use the Best One for Your Needs
Small portable microscopes were once developed to test fiber optic cables. One of the best applications of such a device was the identification of trace fibres to determine the correct connection. This made it possible to find a specific fiber in a multifiber cable for proper connection and installation.Fiber optic is a fantastic medium for spreading light signals, but it needs to be amplified in contrast to copper cables. High-quality singlemode fibers have attenuation and a power loss of only 0.1 dB per kilometer. The signal power (measured in dB) is higher at the head of the network connection than at the end of the customer connection, and it is impossible to suffer light degradation over the length of the connection.When testing fiber optic cables for optical losses, the fiber tester must be connected to a test source that provides optical light on a standard launch cable calibrated to a 0 dB loss reference. For example, when the light source operates at a wavelength of 1310 nm, the optical power meter for testing should be set to 1310.A power meter at the other end of the circuit measures the test source for each fiber tested and quantifies the loss (dB) of each fiber during the test. For double-end loss tests, attach the cable to be tested to two reference cables connected to the source, one per meter. This allows you to measure the two connectors lost at one end for each power cable in the cable.If your electricity meter has an internal memory for data recording, make sure you know how to use it. Use your equipment in the office to test one of your reference tests (bridging cables in each direction) and use the end loss test to make sure it is good.Connect the optical source to Jumper 1, testing one end of the system fiber. Apply the adapter and insert the second jumper for the test, Jumper 2, which contains the same size fiber as the first, and an optical power meter. For the receiver, a separation cable is attached to the receiver socket to measure the performance of the meter.The power of the fiber optic cable or optical return loss is the light pulse that enters the end of the fiber optic core and the percentage of light reflecting back to the source. Optical fiber loss varies according to wavelength, so the optical power meter uses the same wavelength as the light source. The optical performance at the end of the fiber is the basis for the loss measurement, and the power source is presented to the receiver.Both singlemode and multimode fibers (VCSEL) are sensitive to optical return losses (ORL) expressed in decibels (dB). It affects the fiber and laser light source and reduces the data transmission speed.The OTDR test measures the backscattering of light to assess the quality of fiber optic cables. If the light at the other end is not visible, fractures or other problems may occur along the length of the fibre strand.The best way to test such impurities is to use a fiber optic or fiber optic microscope, a special microscope developed for inspection of fiber optics. Fiber optic communication systems operate in the electromagnetic spectrum in the infrared range which is invisible to the human eye.Fiber optic cables have become a more popular choice than Ethernet for network and telecommunications applications due to their high data transmission speeds over long distances. Fiber is the dominant medium for all types of mission-critical data center connections, backbone buildings, and remote campus networks. As the popularity of bandwidth-intensive applications increases, demand for fiber-optic installations and infrastructure is accelerating.Fibre optic cables play an essential role in the telecommunications industry. Testing fibre optic cables is considered one of the most confusing and misunderstood stages of installing a fibre optic system, but it is one of the last and most important procedures for installing a fibre optic network. For optimal savings in system performance, it is important to select a fiber optic cable that is matched to a spectroscopic analysis system.AFL Optical Fiber Identifier (OFIS) is a robust, easy-to-use test instrument that detects the presence of signals in optical fibers. The OFI is an important tool for field technicians to ensure live fibres are not separated and provides the ability to track the fiber from end to end.The optical time domain reflection (OTDR) is used as a fiber optic cable tester to test optical loss. The fiber optic cable is guided to one end through an OTDR to analyze the backscattering of light returning to the source using a high-power laser light that emits a predetermined pulse interval and is connected to the cable. This is the one-sided fiber test method used by fiber optic testers to analyze losses and pinpoint their location for installation, maintenance and troubleshooting.Fiber optic testing requires special tools and instruments to select the appropriate components and cables for the equipment to be tested. The most important test of insertion loss in an installed fiber optic cable system is carried out with a light source power meter (LSPM) and an optical loss tester (OLT), which is required by international standards to ensure that the cable is not lossless within the acceptance and installation budget.If it is a long installation cable with intermediate connections, you should verify each individual connection with an OTDR, as this is the only way to ensure which is the best. For this purpose, the loss testing method specified in OFSTP 1.4 is tested for losses in the installed cable system. Power Meter Optical Loss Test Set (OLT) Test Kit With the right equipment and adapter, the cable system you are testing (e.g.
Cable Fault Tester
Cable Fault Tester
Cable fault detector can be seen everywhere in our daily life. Cable fault detector plays a lot of roles. Cables on the road can divert people and vehicles. The guardrail beside the river can protect people from falling into the river. The guardrail beside the lawn can protect the lawn from being trampled by animals and people. Therefore, the role of guardrail is still great, The installation of guardrail is also very important. The installation of river guardrail needs special attention. Let's follow the traffic guardrail manufacturer to see how to install River guardrail. The river guardrail is a guardrail product installed next to the river to prevent pedestrians on the river road from falling into the river. The base to be fixed during the installation of the river guardrail can only be in the original position, which may cause the base to not be fixed and lose the significance of setting the river guardrail. Simply put, it is to install the guardrail at an oblique angle, hit 2 Road nails to fix the base, and the remaining 2 nail holes are used for later maintenance. After the base of the river guardrail is fixed, the column is installed. Insert the column into the base, and then install the expansion screw. After the screw is fixed, two people need to cooperate when tightening the screw. One person holds the column to keep it vertical. When tightening the screw, the other person can tighten the screws at both ends. In this way, the column and base are installed. The next step is to install the guardrail piece. The steel connecting sleeve connects the river guardrail and the column. This is generally fixed on the column before leaving the factory, so as to reduce the on-site operation process of constructors. Align the guardrail piece with the upper and lower connecting sleeves of the column, and connect the left and right accurately. The above is the introduction to the steps of installing the river guardrail. When installing the river guardrail, we should follow the steps strictly and master the installation skills of the river guardrail, so that we can make fewer mistakes in installation and ensure the performance of the river guardrail in the process of use. We are a professional guardrail manufacturer. If you need to buy our guardrail products, you can call us to communicate with us.
Cable Tracker Software
Cable Tracker Software
The introduction of cable trackerA cable tracker is a device that provides you with information about the broadcasting channels and their schedule. When you turn it on, it will also activate the corresponding set-top boxes in your home to enable TV watching. The cable model is an old technology that has been replaced by more advanced technologies like DVRs, streaming services and IPTV services.Tips for cable trackerCable companies have a wide range of options when it comes to show selection. Furthermore, they offer content and advertising that is unique both in terms of target audience and also in terms of the content itself. The best part about it is that these companies don't have much choice when it comes to the cable tracker, since they are constantly looking for ways to improve their performance while being aware that cable companies can only do so much for them.How to use cable tracker?There are many ways to track a cable or satellite TV antenna. Some of them are free and some of them cost money. You can choose what works for you and your budget, or you could try different options side by side.The specifications of cable trackerTraditionally, cable tracking is an expensive and time-consuming task. A cable tracker needs to send out a signal to a receiver to detect the presence of a cable as it is plugged into it. What's interesting here is that the signal can be sent even without wires or other physical cables. However, the data generated from this signal gets lost if it's not transmitted over the ethernet network and over wireless technologies like Wi-Fi or Bluetooth.The product instructions of cable trackerThe product instruction is a section in a manual that explains how to use the product. It is sometimes referred to as a user guide, installation manual or installation instructions.The application of cable trackerA cable tracker is a device that is used to identify certain television channels and other programs. It can be used by any one from the audience, viewers or advertisers. The idea behind this tracking technology is simple and it allows an audience to "identify" certain channels of programming they like. This creates a positive association for the user, who can then choose whether or not to subscribe to them in future viewing or advertising campaigns.
What Is the Difference Between a Live Cable Identifier and an Uncharged One
What Is the Difference Between a Live Cable Identifier and an Uncharged One
Cable identification instrument can accurately find out the characteristics of cables in a bundle of cables, which is a common equipment. Its wide range of applications can be used not only in cable fault handling, but also in cable erection or migration. There are two kinds of cable identification instrument, one is live cable identification instrument, and the other is not live. So what's the difference between them? Next, let's have a look. How to find a specific cable in a bundle of cables? How to accurately identify cables? Many power maintenance companies most commonly use the live cable identification instrument in power cable erection, migration, maintenance and fault treatment. However, in the face of complex cable and environmental differences, it has become very difficult to identify the running cable. What is the difference between a live cable identifier and a dead cable Identifier? How to distinguish quickly? 1. Working principle of the cable identification instrument the main working principle of the live cable identification instrument is to transmit the phase coded signal with an average value of 0 on the transmitting caliper, receive the single chip microcomputer in the caliper, filter the received signal through hardware and software, and then carry out phase identification. When the receiving clamp clamps the cable according to the current direction, the identified cable ammeter deviates to the right, Accompanied by audible and visual indication. The current direction of other cables is opposite to that of the identified cable, and the ammeter pointer deviates to the left. The working principle of the dead cable identification instrument is to add a special signal to the identified cable, which should be received by a special receiver. The periodic unipolar voltage pulse is fed into the cable to be identified. The direction of the pulse current fed into the cable can be used as an obvious identification standard, and the outgoing current only passes through this cable. 2. Basic parameters of the cable identifier: insert the red and black wiring plugs of the transmitting caliper a into the two red and black wiring posts corresponding to the transmitting source, and clamp the transmitting caliper a on the identified cable. The arrow on the transmitting caliper a points to the cable terminal. On the identified cable two meters away from the transmitting caliper, clamp the receiving caliper B to the cable, and the arrow on the caliper must point to the cable terminal. Then check the current direction and test connection direction. At the identification point, identify each cable with receiving caliper B. During identification, the arrow on the receiving caliper must always point to the terminal direction of the cable, and the cable shall be clamped one by one. On the identified cable, the current meter pointer of the receiver must deflect to the right, and the audible and visual alarm prompts 3. Precautions for the use of the cable identification instrument (1) if the operating cable has voltage and no load, there will be no current flowing on the cable. At this time, the magnetic field cannot be detected. It is considered to be an uncharged cable, which is very easy to misjudge. (2) If the cable is not running, but if this cable is parallel to other running cables, there will be induced current and magnetic field. At this time, the instrument will also have indication, and misjudgment will occur. (3) If there are multiple cables in the cable trench, these multiple cables will generate a magnetic field. At this time, there will be a magnetic field generated by 50Hz current in the whole area. At this time, there will be a magnetic field in the whole area, which makes the discrimination impossible. It is easy to misjudge.
Cable Grounding Troubleshooting and Precautions
Cable Grounding Troubleshooting and Precautions
There are three main reasons for cable grounding fault. First, cable manufacturing defects are unqualified products; Second, poor operating environment, natural aging and external damage; Third, the installation is not standardized and the wiring is rough. There is only one root cause of grounding fault --- the insulating material of the cable. China's large-scale ground power stations are generally located in the West. These places are generally desert, saline alkali land, large temperature difference in the daytime, serious rat damage and very humid environment. For cable buried laying, the filling and excavation requirements of cable trench are relatively high; The operating environment of the distributed power station cable is no better than that of the above ground. The cable will bear a very high temperature, which is measured and controlled by technicians. The roof temperature can even reach the high temperature of 100-110 ℃. The fire and flame retardant requirements of the cable and the high temperature have a great impact on the insulation breakdown voltage of the cable. Therefore, the following points should be considered in the type selection design: 1. The insulation performance of the cable 2. The moisture-proof, cold proof and weather resistance of the cable 3. The heat-resistant and flame-retardant performance of the cable 4. The laying mode of the cable 5. The conductor material of the cable (copper core, aluminum alloy core and aluminum core) 6. The Section specification of the cable
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