SBW-DT

　

Elevator special-purpose AC power supply

Introduction Elevators play an increasingly important role in inhabitation high-rises, busy business building, and hotels. Wenzhou Modern designed elaborately the elevator special-purpose AC power supply considering voltage pulsation caused by ceaseless ups and downs and frequent runnings and pauses of elevators. The systematic regulation adopts roller type carbon brush and high polishing processing of regulating transformer so that the friction loss of carbon brush can be reduced to less than 0.2mm every 10,000 times. In addition, swift speed of regulation resonance, impressive ability of anti load impact and flawless protection guarantee normal and cycling operation of elevator. It also has dual delayed function, by-pass function and the auto restore facility after power cut.

Features: ●  Wide input voltage ●  Maintenance free roller type carbon brush ●  No additional wave distortion, no phase deviation ●  Continually operation mode and withstand to instantaneous overload ●  Protection circuit(over, under voltage and over current auto shutoff after elayed) ●  Manual by-pass function ●  Start output delayed function ●  Lightning device addition is available as request Technical Specification: ●  Input voltage range: 220/380V, ±20%～30%, 47～60HZ ●  Nominal output voltage: Three phase, 220/380V or 230/400V ●  Over voltage cut off: When output voltage over 253V(+15%)，it will delay 4-7seconds before cut off。Automatic restart when mains voltage decrease ● Under voltage cut off: When output voltage under 176V(-20%)，it will delay 4-7seconds before cut off。Automatic restart when mains voltage increase ●  Safe Start: The unit waits 4-7 seconds after mains restoration before output contactor is turned on. The regulator regulates the output voltage to normal output voltage before the contactor is turned on. ●  Output voltage accuracy: Selectable±1~5%，Factory preset at±2.0%, Long term stability: < 2.0 % ●  Overload protection： Automatic circuit breaker at the input 150 % overload capability for heavy start load. ●  Efficiency: ＞98% ● Operation environment: Temperature: -10℃～+40℃, Relative Humidity: <90% Clean and well ventilated ●  Capacity: Three phase: 30KVA～100KVA