Configuration of Cable Fault Tester Buying Guide

Configuration of Cable Fault Tester Buying Guide

2021-11-03
NOYAFA
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Configuration and Management of Cable Fault Tester
Configuration and Management of Cable Fault Tester
With the development of the times, the use of electricity has also developed. Now electricity is everywhere around us. Electricity is transmitted to various places through cables, which provides great convenience for our life and work. Subsequently, the production of cables is becoming more and more perfect, and the types of instruments used to detect cables - cable fault tester are becoming more and more abundant. Today, let's talk about the configuration and management of cable fault tester. With the production scale, type and sales volume of cable manufacturers increasing year by year. As the cable fault is divided into high resistance value, low resistance value, broken line fault and composite fault, the cable fault tester sold on the market is generally configured in sets of high and low voltage, including many components and accessories. A set of equipment components are as few as 5-6 pieces and as many as 10-11 pieces. As a cable manufacturer, it is necessary to timely locate and deal with various cable faults in the factory production process to ensure the timely delivery of products; At the same time, it is also necessary to consider the location of sudden cable faults after the cable laying at the customer's site or during operation. Therefore, as a cable manufacturer, when purchasing the cable fault tester, it mostly adopts the complete set of high and low voltage procurement configuration. In case of direct buried cable fault location at the customer's site, the handling and transportation of the complete set of equipment must be transported by a special cable fault detection vehicle to ensure the quality of transportation. At present, the cable fault testers sold on the market are mainly divided into two categories. One is the cable fault tester designed based on the principle of echo method: mainly including intelligent waveform detection analyzer, conductor instrument and DC high-voltage generator, including console and DC dual-purpose high-voltage test transformer, electric container, ball gap, pointing instrument, etc. The other is a cable fault tester designed and manufactured according to the principle of electric bridge method: the components mainly include fault locator, capacitor, ball gap, pointing instrument, etc. The above two instruments for detecting cable faults are both coarse side positioning part and accurate positioning part of cable faults. When used at the production site and customer service site, the cable fault tester often needs frequent transportation or long-distance transportation. In order to ensure the normal transportation and use of cable fault tester, the daily maintenance and management of cable fault tester is particularly important. At the same time, the actual use frequency of cable fault tester is not high. Therefore, the probability of equipment failure during transportation is not very high. Optical cable fault detector is a kind of precision and valuable equipment. In order to ensure the integrity of the actual use of the equipment, as a cable manufacturer who purchases and uses the cable fault tester, the actual use of the cable fault tester must be subject to daily maintenance and management, so as to give full play to its role at the critical moment of cable fault in production and customer site, Ensure timely delivery of products and rapid resolution of cable faults at customer site. The following suggestions are put forward for the daily maintenance and management of the cable fault tester: the user of the cable fault tester must receive professional training to ensure the safe use of the equipment and prevent damage and electric shock during the use of the equipment. Establish the equipment account for the use of cable fault tester, designate a special person for the use and management of cable fault tester, and have a proper fixed place for storage and management. Before using the cable fault tester every time, the quantity, integrity, user and service time of each component of the cable fault tester shall be strictly checked and recorded. File the equipment with a debit note. After the cable fault tester is returned to the factory or workshop for use, a secondary point inspection must be carried out. The number of points shall include the number of equipment and the number of all accessories. The integrity of the equipment shall be checked before acceptance. In case of equipment failure and missing accessories, it shall be handled in time, and the corresponding economic losses shall be investigated to ensure that the equipment is in good condition before use, And signed by the user and the manager for confirmation.
Cable Tracker - Are You Missing Out?
Cable Tracker - Are You Missing Out?
The introduction of cable trackerIn the future, all cable and satellite providers will be offering more relevant cable content.Tips for cable trackerThe cable industry is one of the fastest growing industries in the world. With our globalized economy, many people are using cable and satellite TV to watch their favorite shows and movies.How to use cable tracker?We can't seem to beat Google Adsense ad tracking. Some webmasters have been using it for years, and are unable to do anything else with it. This is due to the fact that Google is not the only one who uses ad tracking software.Google's advertorials, sponsored articles and paid search result pages also track user activity on their site. But how can we easily bypass them? Looking at the cable tracker is a good way of knowing if something on our site has been visited by an advertiser or not; but it does not work for every site that has ads displayed on their page. Therefore, we have to use a different approach in order to find out whether we've gotten an extra click-through rate (i.e., if someone clicked on our advertisement).We needThe specifications of cable trackerCable tracker installation and usage is a common task that needs to be performed from day-to-day. The job of cable trackers is to monitor a whole network of cables and find which are in use, and at what speed, thus providing information for engineers and technicians.The product instructions of cable trackerCable tracker is a device that connects to your TV via an HDMI cable and displays the TV's signal to the user. It's an essential part of any home or office.There are many problems with cable tracking, such as:The application of cable trackerToday, cable organizations use their own in-house systems to control every channel of their media business. Cable companies are not the only ones that have these systems. The major cable operators also employ some kind of software called Cable Tracker as part of their operational procedures and channel strategy planning.Cable Tracker is a large-scale content generator system that automates the process of creating, running and managing a cable network's network infrastructure.
Basic Functions of Cable Fault Locator
Basic Functions 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: the company also has products such as underground cable fault tester, cable identifier and cable tie tester. You can call the company's service phone through the web page to learn more product details. Perfect and beautiful service is our pursuit. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
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.
What Are the Test Steps for Cable Failure
What Are the Test Steps for Cable Failure
The detection of cable fault generally goes through four steps: diagnosis, ranging, path finding and fixed point. 1. Diagnose the nature of cable fault, that is, determine the type and severity of fault, so that testers can suit the remedy to the case and select appropriate cable fault location and fixed-point methods. Measure the fault resistance with a megger and multimeter to determine whether the cable fault is high resistance or low resistance; Flashover or closed fault; Whether it is grounding, short circuit, disconnection, or a mixture of them; Is it single-phase, two-phase or three-phase fault. 2. Ranging cable fault location, also known as rough measurement, uses instruments to determine the fault distance at one end of the cable. The common fault location methods on the site include classical bridge method and modern traveling wave method. Use jcd-971 cable fault locator or cd-71 cable fault locator. 3. Use pd2000 cable path identifier or cd-12 / 22 cable path identifier produced by Zibo Electric Co., Ltd. for path finding. 4. Fault location acoustic magnetic synchronization method: use cd-81 cable fault locator to synchronize with the discharged electromagnetic signal and digitally sample the sound signal, The sound waveform at the moment of discharge is displayed on the LCD screen. The waveform can be maintained continuously for the operator to distinguish carefully, avoiding the disadvantage of transient sound. Moreover, the actual discharge waveform is obviously different from the surrounding noise. More importantly, the sound waveforms of multiple discharges are very similar. When the sound waveforms of multiple discharges are observed to be the same, It can be clearly judged that the discharge sound has been collected. Because the response range of acoustic measurement method is generally very small, when the discharge sound is heard, it is very close to the fault point, generally not more than 5m, or even within 1-2m
Do You Know the Performance of Intelligent Cable Fault Tester
Do You Know the Performance of Intelligent Cable Fault Tester
The cable fault tester can accurately find the cable fault point, make the cable maintenance work more smooth and achieve the purpose of efficient work. The use of this equipment can ensure the normal transportation of power and is an effective tool to find cable fault points. It has many types. What Xiaobian wants to introduce to you today is an intelligent cable fault tester. The intelligent cable fault tester is used to detect all faults of cables of various voltage levels. It is an effective tool to ensure the smooth wired communication and the normal operation of power transmission. Cable fault tester is an important tool for maintaining various cables. The cable fault intelligent tester adopts a variety of fault detection methods, applies contemporary advanced electronic technology achievements and devices, adopts computer technology and special electronic technology, and combines the company's long-term successful experience in developing cable tester. It is a new high-tech, intelligent and fully functional product. Intelligent 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 precise position of the fault point. It is especially suitable for testing power cables and communication cables of various models and different levels of voltage. Main features of intelligent cable fault tester: 1. Complete functions: test fault safely, quickly and accurately. The instrument adopts low-voltage pulse method and high-voltage flashover method to detect various faults of cables, especially the flashover and high resistance faults of cables can be tested directly without burning through. If equipped with acoustic method pointing instrument, it can accurately determine the precise position of the fault. 2. High test precision: the instrument adopts high-speed data sampling technology, and the A / D sampling speed is 100MHz, so that the reading resolution of the instrument is 1m, the detection blind area is 1m.3, and the degree of intelligence is high: the test results are automatically displayed on the large screen LCD with waveform and data, and the fault judgment is intuitive. It is equipped with full Chinese menu display operation function, without special training for operators. 4. It has the functions of waveform and parameter storage and call out: it adopts nonvolatile devices, and the waveform and data are not easy to lose after shutdown. 5. With dual trace display function: it can compare the test waveform of the faulty cable with the normal waveform, which is conducive to further judgment of the fault. 6. It has the function of waveform expansion proportion: changing the waveform proportion can expand the waveform for accurate test. 7. The position of the double cursor can be changed arbitrarily to directly display the direct distance or relative distance between the fault point and the test point. 8. It has the function of modifying the propagation speed at any time according to different tested cables. 9. Small size, portable shape, built-in rechargeable battery power supply, easy to carry and use.
Principle of Cable Fault Tester
Principle of Cable Fault Tester
At present, the cable fault tester based on impulse flashover method used by the majority of users of power cable fault tester can easily roughly measure the distance of fault point with rangefinder when solving low resistance fault and dead ground fault of low-voltage cable (the distance test of such fault point does not need high-voltage discharge equipment, but uses low-voltage pulse method), However, the method of lighting fire, discharging and listening to sound is still used to locate the fault point. At the same time, the Pathfinder and fixed-point instrument of this kind of instrument are separated, which makes it impossible to synchronize the fixed-point when finding the path, and the fixed-point often deviates from the path. Moreover, due to the limitations of the principle, it is difficult to find the accurate path of the cable when finding the cable path, It is generally between 1-2 meters wide. Starting from practicability, hn-a10 series cable fault locator just makes up for the above defects. It can test the fault point location, buried depth and path synchronization of cable. The indication of fault, path and buried depth of the instrument is very intuitive, without technical analysis and completely independent of the operator's experience. It makes the originally tedious fault test work become a relaxed and interesting thing. Therefore, if the majority of impulse lightning cable tester users have another ht-tc cable fault locator and the original distance finder, they can form a set of perfect low-voltage cable fault tester. At the same time, the low resistance and open circuit faults of high-voltage cables can also be quickly fixed, and the work efficiency can be improved several times. In fact, the majority of power consuming enterprises and units rarely contact the maintenance of high-voltage cables in daily production, because the maintenance right of high-voltage cables is generally specially maintained by the prefecture and municipal power departments. The number of low-voltage cables is far greater than that of high-voltage cables. For enterprises, factories and mining units, residential areas, scientific research institutes, more developed towns and villages, colleges and universities, some small and medium-sized cities and county-level power supply bureaus, the solution of low-voltage cable faults is what they are most concerned about. In fact, what low-voltage cable users need is a tool tester with simple operation, convenient carrying, strong practicability, low price and suitable for field operation. Because the insulation strength of low-voltage cable is low, if the method of ignition and discharge is used to test the fault of low-voltage cable, we find that this method sometimes causes secondary fault. More seriously, after ignition and discharge, the service life of the cable will be reduced and the fault incidence will be increased, which will seriously affect the normal power supply and production.
Cable Fault Test Procedure
Cable Fault Test Procedure
When using cable fault tester (echo method) to test cable fault, the following procedures shall be followed: â‘´ multimeter, megger or judge the nature of cable fault from the cable pre-test results. (2) select the appropriate test method according to the nature of cable fault: the pulse method is best used for low resistance fault and open circuit fault. Of course, the flashover method can also be used for low resistance fault. Flashover method (impulse l method) is best used for leakage high resistance fault, and direct flashover method can also be used for some leakage high resistance faults, but this is usually not done. Direct flashover method is best used for flashover high resistance fault, or both methods can be used to measure and compare each other to improve the accuracy of judgment. (3) select the working grounding point, and lead out two grounding wires respectively from the selected grounding point, one to the ground of the instrument and the other to the ground of the high-voltage equipment. The selection principle of working ground wire is to ensure that the test phase and it form a closed loop, so that the instrument can obtain the correct test waveform. It should also be noted that the working ground wire must be connected with the system to make the human, instrument ground, high-voltage equipment ground and the tested cable ground in the same position. To ensure personal safety and integrity of instruments and equipment. If the cable is in phase to phase fault, the working ground wire must be one of the phase wires, and the phase wire as the ground wire must be connected with the system ground. For the cable with lead-free bushing, most of the faults are discharged to the earth or space during the high-voltage flashover test. Theoretically, the fault also forms a closed loop relatively to ground or space, but in fact, the equivalent impedance in the loop is quite large, so the correct test waveform can not be obtained on the instrument. In case of this situation during the test, the method of directly fixing the suspicious fault point can be adopted to solve it. No matter what ground wire, its grounding point must be reliable. (4) test the total length of the cable with the pulse method to calibrate the radio wave transmission speed of the tested cable. (5) rough test the fault point according to the selected test method. (6) fix the fault point after rough measurement.
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.
How to Make a Handmade Vfl Fiber Tester
How to Make a Handmade Vfl Fiber Tester
Inspection with a red light source in a fibre optic network requires a number of connection / separation operations. Optical troubleshooting devices illuminate fibers that are defective or damaged connectors, patched cords, defective splices, splice trays that are too narrow, or fibers that are bent into gear trays. The choice between perm output mode for continuous error illumination or flash output mode facilitates fault locating. Visual Troubleshooting Devices (VFL) are an important tool for locating defective or in some cases excessive bending in fiber optic cables. A visual fault locator produces high-intensity red laser light when a fiber optic ends in a factory-polished fiber optic connector. VFLs are optimized for use with singlemode fibers called OS1 and OS2, but can also be used with the multimode fiber families OM1, OM2, OM3, OM4 and OM5. The VFL is also used as a tester to check fiber-to-cable continuity by tracing the fiber-to-fiber for faults such as brakes, faulty splices, sharp vessels, etc. In the fiber-to-fiber cable. A visual error locator, also known as visual error detection, is used to locate errors. And of course the technician must be able to see the cable to locate a fault. It is a cost-effective method to detect defects in the fiber optic, such as sharp curves, broken or faulty connectors, and other defects that transmit red or green light. A visual fault locator (VFL) is a basic fiber optic troubleshooting for fiber connections. It is also known as Visible Laser, Fiber Fault Detection, Fiber Fault Detection, or Visual Fault Detection and is available as a red laser or light design that injects visible light energy into the optical fiber. 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 predefined pulse intervals and is connected to the cable at one end, the cable is guided through an OTDR to analyze the backscattering of the light and return to the source location. It locates errors in the OTDR (dead zones) and allows the identification of fibers from one end to the other. The One-End Fiber Test is a method used by fiber optic testers to analyze a loss and determine its location for installation, maintenance and troubleshooting. The Hobbes Fiber Checker Pro and Visual Fault Locator (VFL) can be used to inspect and detect fiber optic cable defects. With VisifaultTM and VFL you can diagnose and repair simple fiber connection problems and flukes in the network. Whether it's installing new fibers or troubleshooting an existing network, the Visual Fault Identifier is a useful and convenient kit. You can diagnose fiber-optic connection problems with fiber-optic cables or fiber-optic pigtails using a visual troubleshooting device. Some fiber optic troubleshooting devices are equipped with adapters that are not compatible with your connector type, so use an additional adapter if necessary. VFI and VFL are ideal tools for locating the large number of problems that can occur at connection points and fiber optic cabinets hidden from OTDRs, blind spots and dead zones. Sharp curves, breakages, faulty connectors and other faults such as leaks and lamps allow technicians to quickly detect defects. Colors can be difficult with red laser light, but optical error localizations such as brown, black and green (e.g. The signal transmitted in fiber optic cables is between 1,300 and 1,650 nm wavelength, which is invisible to the naked eye. Lower wavelengths such as 630 nm and 635 nm are bright enough to locate disturbances easily, but cannot travel much higher than 670 nm wavelength. Several manufacturers choose wavelengths below 650 nm for their optical fault spot specification, which can cover a distance of 5-8 km from the center of a singlemode fiber with minimal attenuation. The Noyafa Power meter uses absolute and relative power measurements at 50 and 26dBm at 850, 980, 1300, 1310, 1490, 1550, 1625 and 1650nm wavelengths. The Fiber Checker Pro is a pen-like design case that makes it a portable and practical tool for checking fiber optic cables. Rhodium Plated 925 Silver 1 Nut Pendant 2.4 Necklace Leader Metal Impeller Integration for Superior Durability. The vinyl we use is designed for outdoor vinyl for 10 years, 3 AA batteries are required (not included). Easy to assign and show a new look, contact us for return / exchange permission within three days of delivery date and mark me on your photo with sugar. Filled non-commercial plaster on glass tube, topped with a layer of natural sand and hooded raincoat to facilitate any outdoor activity. The same attention to cleanliness applies to reference cables and test equipment connections. When using a VFL as an optical fault location fiber tester, fault location and eye safety are important. The VFL uses a high intensity laser light source and its fiber core is illuminated so that it can be viewed with the naked eye.
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