TYDZ 250kVA/0.38KV/0~0.63KV Contact Type Voltage Regulator

Mode: TYDZ 250kVA/0.38KV/0~0.63KV
Single phase          Frequency: 50Hz                Cooling methods: ONAN
Rated Capacity: 250kVA                                    Rated Output Voltage: 0~6.3kV
Regulating methods: Motor drive                    Rated Output Current: 0~39.7A
Rated Input Voltage: 0.38kV                              Aberration Ration of Waveform: ≤3%
Rated Input Current: 657.9A                              Starting Voltage ≤1.5%
Short-circuit Impedance:≤7.5%(in range of 50%~100%,impedance is being linearity)
Mode of Regulation: electrical drive
Operation Time: 15 min on, 15 min off, 48 cycles per day
Short-circuit capability: When test transformer discharge to the test object via damping resistance under transient state, short-circuit current reach 2 times of rated value. The discharge last 8 circle will no damage regulator’s winding or mechanical distortion.
Over load capability: withstand 30min at 1.2 IH; withstand 15min at 1.4IH; withstand 5min at 1.6IH
Product structure: 1. There are upper and lower position limited, oil drain valve, oil level indicator
                                 2. Regulating unit and raise voltage raising units are set together.
 

Principle Diagram: