Transformer Short-Circuit Impedance Calculation

Product Overview

The DC resistance test of transformer windings is an indispensable test item after transformers are handed over, undergo major repairs, or have their tap changers altered. Under normal circumstances, traditional methods are used...(Bridge Method and Pressure Drop Method)Measuring the DC resistance of transformer windings and high-power inductive equipment is a time-consuming and labor-intensive task. To change this situation, shorten measurement time, and alleviate the workload of the testing personnel, Wuhan Xinhuafu Electric Power Equipment Co., Ltd. has developed...ED0204-50Direct Current Resistance Rapid Tester(Shortened to "Direct Resistance Meter")。

ED0204-50The new DC Resistance Rapid Tester employs cutting-edge power technology, featuring stable performance, quick measurement, compact size, ease of use, high measurement accuracy, and excellent data repeatability.

ED0204-50The DC Resistance Rapid Tester is an ideal device for measuring the DC resistance of transformer windings and high-power inductive equipment.

ED0204-50The Direct Current Resistance Rapid Tester conforms to national standards.GB6587-86"General Outline for Environmental Tests of Electronic Measuring Instruments"GB6593-86Requirements of the "Regulations for the Quality Inspection of Electronic Instruments."

Product Features

1The machine is controlled by a high-speed single-chip microcomputer, featuring high automation and easy operation.
2The instrument employs new power supply technology, featuring multiple current ranges and a wide measurement range, making it suitable for the direct resistance measurement of medium to large transformers.
3Enhanced protective features ensure reliable protection against back-EMF surges to the instrument, offering increased reliability.
4Sound-activated discharge alarm, with clear discharge indication, reduces misoperation.
5The system responds quickly, allowing direct switching to loaded tap changers during measurement, with the instrument automatically refreshing data.
6Intelligent power management technology ensures that instruments operate at low power states, effectively conserving energy and reducing heat generation.
7、320x240Dot matrix of ultra-fine pixel points65KTrue-color LCD
8The instrument comes with an in-built perpetual calendar and power-failure memory storage capabilities.1000Group test data is available for immediate access.
9Equipment ProvidedRS232AndUSBInterface, capable of communicating with computers.UDisk Storage

Product Overview

The DC resistance test of transformer windings is an indispensable test item after transformers are handed over, overhauled, or the tap changers are altered. Under normal circumstances, measuring the DC resistance of transformer windings and high-power inductive equipment using traditional methods (bridge method and voltage drop method) is a time-consuming and labor-intensive task. To change this situation, shorten the measurement time, and alleviate the workload of test personnel, Wuhan Xinhuafu Electric Power Equipment Co., Ltd. has developed the ED0204-50 DC Resistance Rapid Test Instrument (hereinafter referred to as the "DC Resistance Meter").

The ED0204-50 DC Resistance Rapid Tester employs cutting-edge power technology, boasting stable performance, quick measurement, compact size, ease of use, high measurement accuracy, and excellent data repeatability.

The ED0204-50 Direct Current Resistance Rapid Tester is the ideal equipment for measuring the direct resistance of transformer windings and high-power inductive devices.

The ED0204-50 DC Resistance Rapid Tester meets the requirements of the national standards GB6587-86 "General Outline for Environmental Tests of Electronic Measuring Instruments" and GB6593-86 "Rules for Quality Inspection of Electronic Instruments."

Product Features

The entire machine is controlled by a high-speed single-chip microcomputer, featuring high automation and ease of operation.
2. The instrument utilizes cutting-edge power supply technology, featuring multiple current ranges and a wide measurement scope, making it suitable for the DC resistance measurement of medium to large transformers.
3. Enhanced protective features reliably shield the instrument from reverse voltage surges, ensuring greater reliability.
4. Features audible discharge alarms and clear discharge indicators, reducing the risk of misoperation.
5. Fast response time; capable of directly switching to loaded tap changers in the measurement state, with the instrument automatically refreshing data.
6. Smart Power Management Technology: Instruments operate at low power status, effectively saving energy and reducing heat generation.
7、320A 65K true-color LCD with ultra-fine pixel points of 240 dots.
8. The instrument features an in-built perpetual calendar and non-volatile storage, capable of storing up to 1,000 sets of test data, which can be accessed at any time.
The instrument is equipped with RS232 and USB interfaces, allowing for communication with computers and storage on USB flash drives.