Formula 1 When the AC no-load current passes through the rated voltage in the transformer winding, there will be a rated magnetic flux density BN in the iron core. At this time, th
May 02, 2022
Power quality analyzers (also known as three-phase power quality analyzers) are used to measure electrical power signals to determine the ability of a load to operate normally at t
May 01, 2022
When the water content of the sample to be measured is relatively low, the Karl Fischer Coulometric moisture meter is used, the detection speed is not only fast, but also the data
Apr 29, 2022
1. The circuit resistance of the vacuum circuit breaker measured with a resistance tester; 2. Use the switch mechanical characteristic tester to measure the characteristic paramete
Apr 28, 2022
(1) The density should be as small as possible to facilitate the precipitation of moisture and impurities in the oil. (2) The viscosity should be moderate, too large will affect co
Apr 27, 2022
1. When testing with windings, the non-testing end of the transformer should be grounded by three-phase short circuit, and the O end of the instrument should not be grounded. 2. Th
Apr 26, 2022
1. It can be used to distribute electric energy, and the asynchronous motor will not be turned on frequently. 2. Turn on or off the load circuit to protect the motor and the power
Apr 25, 2022
1. Before the test, check whether the test product, DC high voltage generator, pressure doubler, discharge rod, grounding wire, and connecting wire of the test product are well con
Apr 23, 2022
1. Principle of digital insulation resistance test The insulation resistance tester calculates the insulation resistance value based on Ohm's law. By outputting a DC voltage th
Apr 22, 2022
Preventive testing is to find hidden dangers of equipment in operation, prevent accidents or equipment damage, check, test or monitor equipment, and also include tests on oil or ga
Apr 21, 2022
The preventive test of high-voltage electrical equipment, that is, the power system includes a large number of electrical equipment, and the failure of some electrical equipment ma
Apr 20, 2022
The double-stage vacuum oil purifier is an upgraded version of the single-stage vacuum oil purifier, with higher filtration accuracy and faster speed. The double-stage vacuum oil p
Apr 18, 2022
