The DPK-20 comprehensive protection device is a four in one universal product with a built-in operating circuit. Suitable for the protection and monitoring of lines, plant transformers, motors, and capacitors with a distribution level of 10KV and below.

DPK-21: No independent measurement CT, measurement data is calculated through protected CT. The current accuracy is level 1, and the power accuracy is level 2.0. Fault free waveform recording.

DPK-22: Equipped with independent CT measurement, the measurement data is calculated through CT measurement. The current accuracy is level 0.5, and the power accuracy is level 0.5.

Note:1. The self-produced zero sequence current must have three-phase current, and the self-produced zero sequence voltage must have three-phase voltage.

2. The four non electricity protection names of the transformer can be selected as "high temperature trip, over temperature alarm, etc.

The external dimensions of the device are 103 * 179 * 124 (mm); Hole size 99.6 * 160.6 (mm)

Front view of the device

Side view of the device

Device opening size