The maximum output voltage of a single HZG test transformer is limited by its rated voltage, typically at 50kV or 100kV. For applications requiring higher test voltages (such as power frequency withstand tests for equipment rated at 110kV or above), multiple test transformers are connected in series
When purchasing instruments, the price difference between Class 0.05 and Class 0.2 may cause hesitation. Those involved in electrical energy metering verification understand that the accuracy class is not merely a performance parameter but also a critical factor determining whether the verification
The voltage withstand test of cables cannot be directly stepped up after connecting the wires. Whether the preliminary confirmation is done solidly is directly related to the test results and equipment safety. Taking the HZDP ultra-low frequency high-voltage generator as an example, the following ap
On the basis of absorption ratio DAR, HZJY-30KV can also automatically measure and calculate polarization index PI. If DAR is a "fast rough judgment" of insulation state, PI is a more in-depth "fine diagnosis" - the two use different time scales and are applicable in different si
In the past, when conducting transformer short-circuit impedance tests, a three-phase voltage regulator had to be prepared on site - it was bulky and heavy, and some remote substations could not be moved in at all. The design of HZ2611 with built-in three-phase inverter power supply has completely c
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