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20A High Precision Automatic Transformer DC Winding Resistance Tester

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20A High Precision Automatic Transformer DC Winding Resistance Tester

Name: 20A High Precision Automatic Transformer DC Winding Resistance Tester
Brand: MINGYANG
Price: 2500 USD

20A High Precision Automatic Transformer DC Winding Resistance Tester Manufactures

Price : 2500 usd

Packaging Details : carton

Resolution : 1μΩ

Output Current : 20A-60A

Model Number : MY-RD

Measurement accuracy : 0.5%

Product name : DC Resistance Tester

Supply Ability : 1000pcs/month

Operating Temperature : -10℃~40℃

Place of Origin : China Mainland

Payment Terms : L/C,D/A,D/P,T/T,Western Union

Time Resolution : 1s

Delivery Time : 1 week

Accuracy Class : 0.5%

Working Humidity : <90%RH

Current Resolutio : 1μΩ

Minimum Resolution : 0.1μΩ

Working power supply : AC220V ± 10%, 50Hz ± 1Hz

Working Voltage : AC220V±10%

Working Temperature : -10℃-40℃

MOQ : 1

Weight : 12kg

Brand Name : MINGYANG

Measurement range : 1-1999μΩ

Volume : 380*350*260 mm

Warranty : 2 Year

Measuring Range : 30μΩ-20KΩ

Display mode : three-and-a-half-digit LCD

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20A High Precision Automatic Transformer DC Winding Resistance Tester

The 20A/40A/50A/60A DC resistance tester is primarily designed for measuring DC resistance in large and medium-sized transformers, generators, motors, and similar equipment. Featuring multiple current ranges, this instrument accommodates diverse measurement requirements across various applications.

Basic Info.

Model NO.

MY-RD

Output current

100A, 50A, 20A, 10A, 5A

Min. resolution

0.1μΩ

Accuracy

±(0.2%+2digits)

Relative humidity

<90%RH(no condensing)

Size

440*245*395mm

Weight

instrument: 19.5kg; accessory case: 7.5kg

Transport Package

Wooden Case

Specification

ISO, SGS

Trademark

MINGYANG

Origin

Wuhan China

Production Capacity

3000 Sets/Year

Product Description

General Information

Transformer DC winding resistance is a required test item for the factory test, installation, overhaul, change of tap switch, handover test and preventive test of power department. It can check the welding quality of the winding joints and whether there is a short-circuit between the windings. It can detect whether the contact of each position of the voltage tap switch is good, and whether the actual position of the tap switch is consistent with the indicated position, whether there is a fracture of the lead wire, whether there is a broken strand of multi-strand wire and winding.

MY-RD Transformer DC Winding Resistance Tester is designed in order to meet the needs of rapid measurement of transformer DC winding resistance. The instrument adopts a new power supply technology, featuring small size, light weight, large output current, good repeatability, strong anti-interference ability and perfect protection function. The whole machine is controlled by high speed single chip microcomputer, high automation, with automatic discharge and discharge alarm function. The instrument has high precision and easy operation, which can realize the rapid measurement of transformer DC winding resistance.

Key Features

High-speed microcontroller control with full automation and intuitive operation
Advanced power supply technology with multiple current ranges and extensive measurement capabilities
Temperature conversion function for both copper and aluminum materials with touch input for winding temperature and conversion temperature
Comprehensive protection system that reliably safeguards against back electromotive force impacts
Audible discharge alarm with clear discharge indicators to prevent operational errors
Rapid response capability allowing direct on-load tap changer switching during measurement with automatic data refresh
Seven-inch color touchscreen display with freely switchable Chinese/English interface
Built-in perpetual calendar clock with power-off storage capacity for 1,000 test datasets
RS232 and USB interfaces for computer communication and USB flash drive data storage
Mobile app compatibility for remote control and test data upload via software

Specification

Output current	100A, 50A, 20A, 10A, 5A
Min. resolution	0.1μΩ
Measurement range	At 100A: 50μΩ~100mΩ; at 50A: 100μΩ~200mΩ; at 20A: 200μΩ~800mΩ; at 10A: 500μΩ~2Ω; at 5A: 1mΩ~4Ω
Accuracy	±(0.2%+2digits)
Working temperature	0ºC~40ºC
Relative humidity	<90%RH(no condensing)
Size	440245395mm
Weight	instrument: 19.5kg; accessory case: 7.5kg

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20A High Precision Automatic Transformer DC Winding Resistance Tester

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