Wuhan GDMK Electric Co., Ltd.

Wuhan Jiangxia District Bridge New District, Huangjiahu Avenue West color aluminum plastic steel doo, Contact Resistance Test Kit, 430200

https://www.mktester.com/hv-switch-tester/contact-resistance-test-kit.html

Product Introduction:

At present conventional QJ44 type double-arm DC bridges are commonly used in power systems to measure contact resistance and the test current of such bridges is only mA level and it is difficult to find defects in reducing the cross-sectional area of the loop conductor. When measuring the contact resistance of the high-voltage switch conductive loop the measured value is several times larger due to the influence of the oil film and the oxide layer between the contacts and the contact resistance value cannot be truly reflected. To this end the latest Ministry of Power Standard DL/T845.4-2004 "General technical requirements for resistance measuring devices: loop resistance tester" and the new version of the verification procedures JJG1052-2009 "loop resistance tester straight resistance test procedures" made a measurement ( Isolation) The measuring current of the contact resistance of switches circuit breakers etc. is not less than DC 100A and the minimum current maintenance time is not less than 60S ensuring accurate test results.

Technical Parameters:

Measuring range	0~2999.9µO
Resolution	0~99.99,0.01µO ; 100.0~2999.9,0.1µO
Test current	DC 50A 100A 150A 200A four-speed fixed output
measurement accuracy	±(0.5% rd+2d)
Continuous working time	5s~599s
Display method	Large screen Chinese LCD display
communication mode	U disk dump
Working power	AC220V±10% 50Hz
Total power	1200W
Maximum storage record	200
working environment	Temperature -10 ° C ~ 40 ° C humidity:=80%RH
Dimensions	380×310×260 mm³
Weight	11kg(No attachments