DPO5054B Temperature Rise Measurement and Control Device

DPO5054B Temperature Rise Measurement and Control Device

The 10kV power feed from the DPO5054B is added to the 10kV converter transformer T1 after passing through the high-voltage circuit breaker CB in the feeder frame and the disconnect switch G in the high-voltage disconnect switchgear cabinet (which is used to form a visible break in case of equipment service or maintenance). This transformer converts three-phase power into single-phase power. This is mainly due to the fact that the load current is very high when doing experiments, and if a three-phase power supply is used, it is easy to cause an imbalance in the load current and thus cause test faults.

The DPO5054B connects a single-phase temperature rise test transformer T2 to the output (secondary side) of the converter transformer. the primary side of the temperature rise transformer should be equipped with a capacitor bank for reactive power compensation, while the secondary side is directly connected to the test article (i.e., a high-voltage thyristor valve) through the on-load tap-changer to carry out the temperature rise test.