Disadvantages of loop resistance tester in testing
The loop resistance tester designed according to the conventional design principle found that there is...
Technical Guide
hvhipot Calibration method of megohmmeter
Calibration method of megohmmeter: 1. Impedance bridge with 1% accuracy in the range of 103...
Preparation for measuring insulation resistance
When the measured object is connected to the power supply, it should be taken out...
Troubleshooting of High Voltage Test Transformer
Common faults of oil-immersed transformers in operation include windings, bushings, tap changers, iron cores, fuel...
How to solve the failure of loop resistance tester
Common faults and solutions of loop resistance testers: 1. Failure phenomenon one The test current...
Resistance, current, voltage relationship
The relationship between resistance, current and voltage, then we should understand what Ohm’s law is....
Operation method of DC resistance tester
Operation method of DC resistance tester 1. Before use, check whether the input and output...
Transformer fault detection and troubleshooting
1. Partial failure of lead wire Detection method: The unbalance rate of the three-phase DC...
AC and DC oil-immersed test transformer details
The AC/DC oil-immersed test transformer uses advanced production equipment, adopts the new technology of coil...
How to use dry-type test transformer
Use method of dry-type test transformer: 1. The input end of the test transformer control...