Indoor High Voltage Metering Handcart

Juhui Power Equipment Co., Ltd. manufactures metering handcarts and integrated transformer handcarts. The factory covers 1,500 square meters, with a research team working on site. Global brand customers have also purchased from us. The Indoor High Voltage Metering Handcart is available with rated voltage options of 12kV (10kV), 24kV, and 40.5kV. Rated frequency is 50Hz. The 1-minute power frequency withstand voltage is 42kV (12kV) / 65kV (24kV) / 95kV (40.5kV). The peak lightning impulse withstand voltage is 75kV (12kV) / 125kV (24kV) / 185kV (40.5kV).

The CT current transformer ratio is 20–2000/5A and can be customized. The CT accuracy class is 0.25 for metering and 5P20 for protection, which is a common State Grid configuration. For the 10kV model, the PT voltage transformer ratio is 10/√3:0.1/√3:0.1/3. Other voltage classes can be customized on request. PT accuracy class is 0.2. The matching switchgear is KYN28A-12 / KYN61-40.5, selected according to the voltage class. The handcart uses a manual screw mechanism for roll-in and roll-out operation. A high voltage five-prevention mechanical interlock prevents the handcart from being pulled out while live.

Short-time withstand current for 4s is 20kA / 25kA / 31.5kA, depending on customer selection. Peak withstand current is 50kA / 63kA / 80kA, also depending on customer selection. The Indoor High Voltage Metering Handcart uses a one-piece structure with built-in three-phase CT and PT. It is used for electric energy metering by power companies. The chassis dimensions are fully interchangeable with those of the breaker handcart in the same cabinet, allowing direct replacement. The entire handcart can be pulled out as one unit, making transformer calibration and maintenance easier.

Epoxy-cast transformers are used for stable insulation and metering accuracy. A complete five-prevention interlock helps prevent live insertion and incorrect operation. Production can follow your specifications, and a single piece is enough to start.

Electric energy metering for power companies is the main application. Three-phase CT and PT are built into the one-piece handcart structure. The chassis dimensions are fully interchangeable with those of the breaker handcart in the same cabinet, allowing direct replacement. The entire handcart can be pulled out as one unit, which makes transformer calibration and maintenance easier.

The Indoor High Voltage Metering Handcart uses epoxy-cast transformers. The insulation is stable, and metering accuracy is maintained. A complete five-prevention interlock helps prevent live insertion and incorrect operation. It is suitable for KYN28A-12 and KYN61-40.5 switchgear according to the corresponding voltage class. It meets requirements for electric energy metering and transformer calibration.

Electric energy metering requires the correct transformer ratio, and transformer calibration also depends on the selected configuration. The entire handcart can be pulled out, making calibration and maintenance easier. Epoxy-cast transformers provide stable insulation and metering accuracy.

During selection, confirm the CT ratio, PT ratio, and accuracy class. We can provide recommendations based on your requirements. Production can follow customer drawings. Third-party inspectors are welcome to carry out inspections. Every unit is checked before packing. The product carries a one-year warranty.

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