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Shanghai Rui Jin-Frequency Power Supply Technology Co., Ltd. mainly produces all kinds of Beijing inverter power supply, single-phase inverter power supply, three-phase inverter power supply, 60HZ inverter power supply
Model: RFC-33075 3 into three 75KVA
Circuit means: (1) IGBT / PWM modulation
(2) three-phase independently designed, affordable, 100% unbalanced load
Output waveform: standard sine-wave CF = 1.4
Input Voltage: 3 phase 4-wire + ground wire 380V ± 15% 40-70HZ
Output voltage: 3 phase 4-wire + ground line voltage (VL-L) 208V fixed output
Phase angle 120 ° ± 1 °
Output current: rated operating current of 208A
Output Frequency: 60HZ Fixed
Frequency stability: ≦ 0.01%
Load regulation: ≦ 0.5% (100% of sudden, sudden load shedding, voltage recovery time ≤ 8.8ms 60HZ, within half a cycle)
Waveform distortion rate: ≦ 2% (a purely resistive load full load test)
Crest factor ratio: 3:1
Assembled meter: (1) VL-L, VL-N, I, P, Q, S, F, PF, power (9999MW · h) measurement and Clear functions;
(3) with RS485 communication port (ModBus-RTU Statute), measured parameters can be uploaded first-bit machine;
Protection:
Input: Enter the no fuse short-circuit protection, input-phase protection
Output: overload, over-voltage protection, over temperature protection, short circuit protection, self-diagnosis Protection
(1) Overload Protection: 100% load for long-term stable operation;
150% overload protection delay (0-5min delay time can be arbitrarily set, overload time is less than set time, machine
Normal operation);
Instant 200% overload protection (protection time ≤ 2ms);
(2) over-voltage protection: output voltage exceeds 220V (VL-L) transient protection (protection time ≤ 2ms);
(3) The over-temperature protection: IGBT module temperature ≥ 85 ℃ cooling drum machine protection (protection time ≤ 2ms);
(4) Short circuit protection: Firewire on the firing line short-circuit (LL), FireWire on the zero line short-circuit (LN) (protection time ≤ 2ms);
(5) Self-diagnostic Protection: device failure (IGBT, fuse), motherboard failure (protection time ≤ 2ms);