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Measuring the contact resistance and loop resistance of
high-voltage switches, measuring high-voltage switch cabinets and
bus loop resistance tester is a combination of traditional
micro-ohmmeter and milliohmmeter.
The SRT loop resistance tester is developed in accordance with the
national standard GB11022-1999, using the DC step-down method to
measure the contact and loop resistance of high-voltage switches.
Use a dedicated high-frequency switching power supply to provide
the instrument with a DC test current greater than 100A; use a
microprocessor to automate the measurement process. When measuring,
just turn on the instrument power supply and press the measurement
button to change the loop current to the device under test. The
loop resistance is automatically measured and displayed on the LED
digital tube. Due to the use of advanced high-resolution AD
converters and software to process the test data and digital
filtering, the instrument has strong anti-interference ability,
thus ensuring the measurement accuracy.