Water Pipe Tester Buying Guide

Water Pipe Tester Buying Guide

2021-10-05
NOYAFA
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The attention of SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED on water pipe tester begins in the modern production environment. We utilize cutting-edge production technologies and approaches to ensure that the product is in compliance with stringent quality standards. We strictly follow a modern quality management system on the product which is internationally acknowledged.Our NOYAFA has successfully gained customers' trust and support after years of efforts. We always remain consistent with what we promise. We are active in various social media, sharing our products, story, and so on, allowing customers to interact with us and get more information about us as well as our products, thus to more quickly foster the trust.For satisfying various needs of customers, the specifications and styles of all our products including water pipe tester can be totally tailor-made by Best Cable Tester Supplier in China _ Noyafa. Safe and reliable shipping method is also offered to ensure the zero risk of the goods during the transportation.
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How Does the Power Cable Fault Tester Detect the Fault Point
How Does the Power Cable Fault Tester Detect the Fault Point
How to detect the fault point of power cable fault tester: it is composed of notebook computer, test system, path signal generator, path signal receiver and positioning instrument. It can complete the two tasks of cable fault test and cable data management. Notebook computer for measurement control, data processing and cable data management. The fault test system can measure the distance between the fault point and the test end at one end of the fault cable, and can also be used to measure the length of the cable and the propagation speed of radio waves in the cable. The path signal generator can generate 15KHz, * large amplitude 30V intermittent sine wave signals for finding cable paths. The path signal receiver is used to receive the path signal, find the cable direction and estimate the buried depth of the cable. The locator is used to locate the fault point. Technical performance of power cable fault tester 1. Fault test system ● it can test various faults of various power cables and open circuit and short circuit faults of communication cables and local telephone cables. ● the speed of radio wave propagation in any cable of known length can be measured. ● test distance: not less than 40km ● system error: less than 0.5m ● sampling frequency: 25MHz ● test blind area: less than 5m ● power supply: AC 220V ± 10% 2. Pathfinder signal generator. ● signal frequency: 15KHz ● oscillation mode: intermittent ● output power: 30W ● power supply: 220V ± 10% 2. Test sensitivity of power cable fault tester: the signal source with 50 Ω internal resistance outputs 300Hz signal, and the input signal of the pointing instrument shall not be greater than 10 when the output is maintained at 2V and the signal-to-noise ratio is better than 20:1 μ V。 ● input impedance: not less than 1.2k Ω. ● use 2 × 2000 Ω headphones. ● working voltage: 9V ± 10%. ● operating ambient temperature: - 10 ℃ 40 ℃
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.
Application of Cable Fault Locator
Application of Cable Fault Locator
The application of cable fault locator in 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!
Matters Needing Attention During Cable Fault Tester Test
Matters Needing Attention During Cable Fault Tester Test
The cable fault tester is 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 fault test cables of coaxial communication cables and local telephones. You can also test cable path, burial depth and radio wave velocity measurement, verify cable length, etc., and establish cable files for daily maintenance management. The cable fault tester uses the time domain reflection principle to send a series of electrical pulses to the tested cable, receives the reflected pulses caused by the change of cable impedance, and then represents them according to the propagation speed of the cable. The characteristic inflection points of the electric wave and two reflected waves in the cable. Time, the distance from the fault point to the test end can be measured. Precautions when using: 1. During the pulse method test, please pay attention to get rid of all equipment in the office and measure on the outside line. 2. When using the flashover method for testing, be sure to set the trigger working mode switch to the "flashover" position. 3. When using direct flash method or flash method for testing, please pay attention to personal safety and equipment safety. Be sure to connect the ground wire. 4. After the flashover test, cut off the power supply, unplug the connecting line between the instrument and the high-voltage test equipment, and then release the charge stored in the high-voltage capacitor and cable. During discharge, current limiting resistor R shall be added to limit the discharge current to discharge slowly. After the voltage on the capacitor decreases, the resistance in the discharge circuit is directly zero. Equipment or personal accident. 5. During the direct flash test, be sure to monitor the leakage current of the fault. If the current increases suddenly and there is no fault flashover, immediately reduce the test voltage and use the flash test. The smoothness and power transmission of the cable fault tester system depend on the normal operation of the cable line. Once the line is blocked, communication and power supply will be interrupted. If the fault can not be found and eliminated in time, it will cause huge economic losses and adverse social impact. Therefore, maintenance personnel should pay attention to ensure the normal operation of cable fault tester during work.
Common Detection Methods of Power Cable Fault Tester
Common Detection Methods of Power Cable Fault Tester
Power cable is an underground equipment. Generally, the soil layer plays a protective role for the cable. However, once a fault occurs, it is also very difficult to find it. It takes a lot of time, which is a great waste of human and material resources. In this case, it is necessary to use cable fault detection equipment, such as power cable fault tester. The initial measurement method of common fault cable is divided into control circuit bridge balance method, bottom pressure single pulse reflector method and flash detector method. In the initial measurement method of cable fault, the appropriate cable fault detector is adopted according to the different characteristics of common faults, The distance between the common fault point and the test case and the relative path of the common fault point are accurately measured and calculated by using the cable route technical document. There are three key methods of initial measurement: control circuit bridge balance method, bottom pressure single pulse reflector method and flash detector method. The method to improve the sensitivity of the galvanometer can refit the DC amplifier in front of the galvanometer, but the gain value of the amplifier is too high, resulting in serious zero drift and the bridge can not be balanced. When the working voltage of the switching power supply of the bridge rises, the compressive strength of the insulating layer of the bridge body to the ground must be relatively increased and the safety precautions for the maintenance and actual operation personnel shall be taken. When the working voltage of the switching power supply rises to a certain value, the common fault resistor is generally unstable. If the resistance of the grounding wire suddenly decreases to zero, High voltage will be applied to the bridge and the galvanometer will be damaged. Common use methods of power cable fault tester. The characteristics and provisions of the bridge method are: it is only applicable to accurately measure the server downtime in the cable line. If there are many other common fault points in the line, it can not be used. The less the jumper wire at the other end of the cable route, the higher the jumper wire. Its cross section shall be close to the cross section of the cable conductor, and the connection shall be tightened to make its contact resistance close to zero. When raising the experimental working voltage for fault test of high resistor grounding device, be sure to give a very safe prompt. After the common fault burn through equipment is used to convert the common fault of flashover into the common fault of grounding device, the power bridge method shall be used for accurate measurement immediately, so as to prevent the insulation layer from being repaired and the common fault point from being closed again. In addition, it is not necessary to burn the resistance of the grounding wire of common faults too low, so as to prevent the difficulty of producing too little sound when using the precise measuring point method. The bottom pressure single pulse reflector method, commonly known as the single pulse method, uses the basic principle of the radio wave reflector caused by the mismatch of wave impedance when the differential signal is dispersed in the cable line. The time of the single pulse wave reflector and the wave speed of the cable are measured on the digital oscilloscope to clarify the distance between the cable fault points. In general, the characteristic impedance in the cable line is not matched with the right point. In addition to the disconnection (lead) of the electrical conductor, short circuit fault and common faults of the grounding device, there are all points with uneven characteristic impedance at the cable joint and where the cable crosses the metal material pipeline, which will also cause the reflection surface of the wave. Be sure to identify them carefully during detection. Especially when the resistance of the grounding wire exceeds about 2 3 times of the wave impedance of the cable, the fluctuation amplitude of the reflecting surface is small, and it is impossible to identify common fault points. The single pulse method is most suitable for measuring the common faults of disconnection. In addition, it is also suitable for measuring the resistance of grounding wire less than 100 & omega; Faulty cable.
How to Contact Your After-sale Service Division?-1
How to Contact Your After-sale Service Division?-1
NOYAFA provides tracking numbers for all shipments. This will allow you to track the location of their purchase. If you have not received your tracking number by then, please contact us with the issue. We are here to help. We ensure fiber optic cable testing tutorial will reach you safely.As time goes by, SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED gains more and more reputation for being a fiber optic cable testing tutorial manufacturer. SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED thinks that design is the soul of fiber optic cable testing tutorial, so we highly value it. Through the all member's continuous efforts, SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED gain our line recognition with fiber optic cable testing tutorial.Through the development of global economic integration, SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED adheres to its strategy and seeks for long term partners all over the world. Inquire now!· Related Questions:1. Are we informed about fiber optic cable testing tutorial weight and volume after shipment?Yes, NOYAFA will inform customers of the exact weight and volume of fiber optic cable testing tutorial after delivery. We will follow up the whole loading and unloading process and ensure all the cargo put in the containers are safe and complete. The number of containers, gross weight, net weight, and volume of the cargo will be carefully calculated by our trustworthy freight forwarders. Then, they will provide us with a waybill which is a document giving details and instructions relating to the shipment of a consignment of goods. A packing and weight list showing the volume and weight of the cargo we deliver will be sent to customers after shipment. ——————— 2. May NOYAFA offer warehousing services?When it comes to warehousing, we've responded directly based on the needs of our customers. Most of our customers enjoy the service if we tell them we could help once they have warehousing problems. The flexibility of our warehousing services may be just what you need to increase your small business. ——————— 3. Is fiber optic cable testing tutorial tested before shipment?The Pre-Shipment Inspection (PSI) is one of many types of quality control inspections conducted by NOYAFA. This inspection is done according to standard QC Test, or based upon customer requirements. Samples are selected and inspected for defects at random, according to these standards and procedures. For us, Pre-Shipment Inspection is an important step in the quality control process and is the method for checking the quality of fiber optic cable testing tutorial before they are shipped. ——————— 4. What kind of packing is provided for fiber optic cable testing tutorial?NOYAFA will assess customers' requirements and choose the right packing methods. We know the right packing will bring benefits to both ourselves and customers. It helps us save money by ensuring that we don’t need to ship replacement products if the original gets damaged. And it prevents customers from receiving damaged products or stuff that is "dead on arrival (DOA)." As a result, high-quality packing materials will be always used for our shipments. These materials would never weaken or break during delivery, avoiding ruptures in the box or the product getting damaged during the journey.
Introduction of Test Composition of Live Cable Fault Tester
Introduction of Test Composition of Live Cable Fault Tester
Cable fault tester is a commonly used cable fault detection equipment. This equipment is used with a variety of cable fault detection. Its stable performance and accurate detection make the cable fault detection more comprehensive. The work efficiency of inspectors has been greatly improved. Today we mainly explore the composition of live cable fault tester. Test composition of live cable fault tester: 1. Live cable fault tester is composed of the following parts: 1. Instrument host: cable fault flashover tester, referred to as flashover tester for short. Cable path test signal source, referred to as path tester. Cable fault point / path meter receiver, referred to as point meter. 2. High voltage accessories: high voltage pulse capacitor. The utility model relates to an AC / DC dual-purpose high-voltage test transformer. High voltage test transformer operation box. 2、 The test functions of the cable fault tester mainly include: 1. Purpose: it is suitable for low resistance fault test, short circuit fault test, open circuit fault test, high resistance leakage fault test and high resistance flashover fault test of various power cables with different sections and media, high frequency coaxial cables, municipal cables, street lamp cables, ground buried wires, etc. Specifically, there are the following types: (1) testable cables are equivalent according to voltage: low voltage cables and high voltage cables. (2) Testable cables can be divided into: power transmission cables; Control cable; Street lamp cable. (3) The testable cables can be divided into: directly buried cables, cables laid in cable trenches, overhead cables and more than two parallel directly buried low-voltage wires. (4) Testable cables can be divided into: short circuit fault; Phase failure; Low resistance fault; High resistance leakage fault; High resistance flashover fault is described in detail after fault classification. (5) If there is a cable identifier, we can find the cable we are looking for from multiple cables buried in the cable trench, that is, the cable identifier. (6) Both fault test and cable identification are conducted for power-off cables, and fault test cannot be conducted for live running cables. 3、 Introduction to the test principle of cable fault tester: 1. The host of this set of instrument is a host, which is mainly used for cable fault test. 2. It is a rough measuring instrument for cable fault distance, which can measure the approximate distance from the fault point to the cable test end face. 3. The lightning meter can measure the cable length and the propagation velocity of electromagnetic wave in the cable. The test principle of lightning meter is radar reflection method, also known as pulse reflection method. Single end test distance of lightning meter: 15km. Minimum test distance (blind area) of lightning meter: 15-20m. 4. Measurement error of cable fault tester: rough measurement error & plusmn; 1%, system (point) error & plusmn; 0.2m. In short, after accurately determining the fault point, dig a pit to find the fault point. 5. The principle of cable fault detector for finding cable path is to add electromagnetic wave signal to the tested cable and receive the signal of finding cable path through the pointing instrument. The minimum characteristic of receiving electromagnetic signal on the ground directly above the cable is used to determine the buried position of the cable.
Structure of Mine Cable Fault Tester
Structure of Mine Cable Fault Tester
1. The mine cable fault tester is composed of control part (low voltage) and high voltage rectifier, discharge and test part. Sufficient safety space shall be reserved between high and low pressure room, high and low pressure room and shell. 2. In order to ensure the safety of equipment and personnel, special personnel must operate with keys before high-voltage startup. 3. During each flaw detection or cable test, it can ensure that the high voltage rises slowly from the zero position, with the shape of high and low voltage limit. The pressure rise or fall process is controlled by the button, the voltage rise and fall rate is stable, and the operation is safe and simple. 4. The DC withstand voltage test time can be automatically carried out after digital (or manually controlled), and the test time is accurate and reliable. 5. The leakage current can be measured at any time according to the needs of the withstand voltage test process. 6. The mine cable fault tester has over-current and short-circuit protection, startup warning and over-current protection. 7. The control panel is equipped with power switch, high-voltage start, high-voltage stop, step-up, step-down and other switches or buttons, voltage withstand test, digital time timing relay, etc. 8. There are high voltage, leakage current, low voltage total current and other measuring meters on the display board, power supply, high voltage, timing and other indicator lights, curve observation window for ball gap discharge, etc. 9. Special high voltage discharge * * is equipped for discharge after each flaw detection or test to ensure safety. There is a grounding mark at the bottom of the box. Dear customers: the company also has cable fault detector, buried cable fault detector and underground pipeline detector products. You can call the company's service phone through the web page to learn more product details. Perfect service is our pursuit. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
Cable Tracker Mapping Software
Cable Tracker Mapping Software
Cable Tracker is one of the most famous AI writing assistants. It is available for Windows and macOS. Cable Analyzer is available for Mac OS X.Cable Tracker comes with a built-in programming language, which allows developers to generate proper professional content through cable tracker. For example, it can be used to create informational articles on social media accounts or to explain the benefits of cable internet bundles over other types of internet services (i.e., satellite or fibre). Cable Analyzer can also give a report on technical issues around cable television services (cable modems, etc.).We all know that a cable company is a big part of our daily lives. It's a fact that we depend on them for almost everything. But what do you do if the company's website doesn't inform you about the prices? What price will you pay for getting connected to your cable provider? How much will it cost you for more channels? Where can I get all these information at once?You can use cable trackers to monitor your home business. You can view multiple meters at once. You can also see the data on a per-room basis.With the help of these tools, the cable company can give a more detailed overview of their customers' data.In a world with increasing data available on the internet, more and more companies are realizing that their cable streams can be tracked by third parties. This has created a great opportunity for them to sell their services to cable customers.The IPTV providers in the US have been exposed of selling their content through cable channels and paying huge amounts of fees to these third parties. The IPTV industry is growing rapidly in the U.S., which provides an attractive opportunity for these companies to sell premium viewing rights as well as create business models.Ultibox - a tool to help you find the best cable TV available in your region.This article explains how to use cable trackers and analyzers.In the short time that it has been in the market, cable TV apps have become a staple part of many households. But, with so many app options available, it seems that there is a lack of one-stop shopping.Cable Tracker provides an overview of current television and cable offers in a user friendly and interactive interface. Cable Analyzer allows you to get details about what channels are being viewed at any given moment using predictive analytics. App scheduler will let you set your schedule for watching the most popular shows and keep all of your favorite channels on hand at all times.For years, there were only two cable tracking devices available - the HubSpot and Adobe Pulse. Their prices were over $100 each.The problem with these devices was that they didn't have all features that were needed to run a successful cable plan. It had limited functionality and it required a lot of effort to set up.Cable Tracker helps you to make informed decision on whether or not you should invest in the latest technology for your home business. This app provides more than just cable plans: It also helps you to make informed decisions on network, internet service providers and other important aspects of home business services.The use of cable tracker software in the cable industry is expanding. There are several companies that make these applications for home users to track their TV and internet usage. These applications provide a way for the user to monitor how much time they spend watching TV or surfing the internet, how much time they save and other interesting statistics.New tools have been created to help you watch your cable service. One of them, called Cable Tracker, is a network traffic monitor that will detect sudden spikes in data usage and display the bandwidth used by your internet provider.The applications of the Cable Tracker are varied and have many different uses. The applications of the Cable Analyzer are widely used in telecommunications, cable television, and cable systems. The third application is cable tracker (also known as a subscriber list provider), which allows you to manage your customer’s account information conveniently from your computer or smartphone.The objective of this article is to give some insight into three of the most popular applications that can be found today: Cable Tracker, Cable Analyzer, and Cable Scheduler.
Application Field of Cable Fault Locator
Application Field of Cable Fault Locator
The application field 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 underground cable fault tester, cable fault tester, mining cable fault tester and other products. 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!
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