Product Introduction： It is used to measure the grounding resistance of various devices in power, communication, railway, industrial and mining enterprises and other departments. The DC / AC conversion technology is used to combine the three-terminal button and four-termin...

Product Introduction： AC and DC indicator calibration device is a new generation of portable meter source integrated meter calibration device launched by our company. The product has the characteristics of beautiful appearance, full function, excellent index, high reliabili...

Product Introduction： The single-phase electric energy meter field calibrator is a high-precision measuring instrument integrating electric parameter measurement, electric energy meter verification, CT transformation ratio measurement, and fault analysis. ...

Product Introduction： The current and voltage transformer load box is a variety of effective loads that are specially provided when testing current and voltage transformers. The transformer load box is strictly in accordance with the national standard JJG313-94 << Current ...

Product Introduction： The standard current transformer is used as the current transformer calibration standard in the error test of the transformer ...

Product Introduction： When the current transformer is used to verify the current transformer, it is used as the power supply for the primary current of the current transformer or as other 50Hz single-phase power supply equipment. ...