NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–Noyafa Cable Tester
What is a DC Resistance Tester? Shenzhen Noyafa Guide: The DC resistance tester uses power technology to measure the DC resistance value of power transformers and high-power inductive equipment. It has many advantages such as high accuracy and fast speed. What is the most popular power DC resistance tester? Shenzhen Noyafa Introduction: The DC resistance tester uses power technology to measure the DC resistance value of power transformers and high-power inductive equipment. It has many advantages such as high precision and fast speed, and is very popular among power workers. Shenzhen Noyafa specializes in the R&D and production of high-voltage power test equipment such as DC resistance tester, microcomputer relay protection tester, series resonance test device, etc. The HZ-10A DC resistance tester produced has high precision, fast speed, convenience and reliability. And many other advantages! Shenzhen Noyafa|What is a DC resistance tester? Electric workers often hear the device of a DC resistance tester at work, so what is a DC resistance tester? What are the main working principles and applications of the device? Shenzhen Noyafa will give you a brief introduction in this article. DC resistance tester The DC resistance tester adopts the new power technology, which has the characteristics of rapid measurement, small size, convenient use and high measurement accuracy.
The DC resistance speed tester meets the requirements of the national standard GB6587-86 "General Outline of Environmental Testing of Electronic Measuring Instruments" and GB6593-86 "Rules for Quality Verification of Electronic Instruments". It is a professional equipment for measuring the DC resistance of transformer windings and high-power inductive equipment. The DC resistance test of the transformer winding is an essential test item after the transformer is handed over, overhauled and the tap changer is changed.
The "Regulations" stipulate that the DC resistance of the transformer winding needs to be measured during the transformer handover, major repair, minor repair, change of the tap position, fault inspection and pre-test, etc. The purpose is to: 1. Check the welding quality of the internal wires and leads of the winding; 2. Check whether the contact of each position of the tap changer is good; 3. Check whether the winding or lead wire is broken; 4. Check the correctness of the parallel branch, whether there is one or several breaks in the winding formed by several parallel wires 5. Check whether there is a short circuit between layers and turns. DC resistance tester The DC resistance tester adopts a new power supply technology, which has the characteristics of rapid measurement, small size, convenient use and high measurement accuracy. It is an ideal device for measuring the DC resistance of transformer windings and high-power inductive equipment.
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