| Customization: | Available |
|---|---|
| Current Type: | AC |
| Phase: | Three Phase |
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| Input voltage | (domestic grid voltage) three-phase four-wire phase voltaqe 220 ±20, line voltage 380 V±20% or phase voltage 220 ±30. line voltage 380v±30% can be selected (order to be explained) |
| Output voltage | three-phase four-wire phase voltage 115V line voltage 200V or three-phase four-wire phase voltage 127V line voltage 220v (order to be explained) |
| Output voltage accuracy | 1-5% adjustable |
| Efficiency | ≥98% (power rating above 20KVA) |
| Response speed<1.0s | ≤1.0 S(10% when external voltage changes) |
| Waveform distortion | no additional waveform distortion |
| Protection | Over-voltage, over-current, lack of phase, phase sequence protection (single phase and phase sequence protection) and mechanical fault protection |
| Insulation resistance | ≥2MΩ |
| Overload capacity | double rated current for 1 minute |
| Stable voltage, easy to switch electicity (single phase without this function) | |
| Power on automatic start or manual start can be selected | |
| Can long-term, continuous unattended work | |
| Electrical strength, power frequency sinusoidal voltage 2500 V( duration 1 minute no breakdown and flash over phenomenon) | |
| Over and under voltage protection | When the input voltage exceeds the voltage regulator's over-voltage or under-voltage value, the equipment will automatically protect the no-voltage output. |
| Over current protection | When the current exceeds the rated value, the input is automatically cut off. |
| Overload, short circuit protection | When the load exceeds the specified overload capacity or short circuit of the equipment, the power supply can be automatically cut off within the specified time. |
| Limit protection | When the brush operation exceeds the area, the adjustment is automatically terminated. |
| Mains bypass function | When the voltage stabilizer needs maintenance or malfunctions, the manual switch can be switched to supply power in a direct connection state. |
| True effective sampling circuit control | High accuracy, good sensitivity, good measurement rate and frequency characteristics, high input impedance, low output impedance, wide power supply range and low power consumption. |
| Back to middle function | When the sampling voltage is lower than the lower limit reference voltage or higher than the upper limit reference voltage, the brush will automatically return to the center. |
Shanghai Wenfeng Electric Co., Ltd. is a large-scale production base of voltage stabilizer products in China and a leading brand in the domestic voltage stabilizer industry. Since its establishment in 1995, the company has successively established offices in Beijing, Guangzhou, Shenyang, Chengdu, Qingdao, and Xi'an. The newly completed international standard factory building in 2010 covers an area of 12,000 square meters and has more than 150 employees, of which 30% are electric engineering and technical personnel, and the coverage rate of bachelor degree or above is more than 25%. Wenfeng Enterprise has a high level of industry representativeness in power supply technology research and development system design, manufacturing technology, product quality, etc.
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