Energy feedback device for elevaters

WORKING PRINCIPLE AND CHARACTERISTIC

The mechanical energy from moving load can be changed into electricity power by energy feedback equipment, then return to AC power network which can supply the electricity for other equipment.

Intelligent electric energy saving recycle device change moving load into electric power by feedback.

It can make motor dragging system reduce the loss of electricity energy in unit time for the purpse of saving electricity power.

Substitute: break unit+resistance = energy feedback.

Energy saving: feedback regeneration energy to power network, efficiency can reach to 97, increase economic benefits and protect environment.

Specifications

1.Adopting DSP CPU with high speed, high precision, goods reliablility, strong anti-jamming ability.

2.Adopting SPWM pulse width modulation technology, the output phase is accurated and it can prepress high order harmonic wave.

3. Protection: can prevent power grid flow back, overheat, overcurrent, out of phase, out of voltage, short circuit.

4. Adaptive connection mode, easy to use.

5. Intelligent digital control pannel.

6. Inbuilt intelligent fan, high and low frenquency filters, external short protection. Can store relevant data for track and diagnose.

7. Rated voltage:220V,400V,480V(customed)

8. Adopting self-diagnosis technology to assure the accuracy of output voltage, prevent electricity returning and make the transducers work without any influence.

9.Suitable for all series of elevators, such as Simens, ABB Misubishi, Yaskawa, Fuji/GE, Omron, Danfoss, etc.

10. Warranty period:24 months.

Technique Specification

1. Working DC power: 315/620VDC

2. Output AC power: three phase220/380VAC

3. Permit working frequency:46-60Hz

4. Setting error:<0.5%

5. Overload capacity: 110% long-term, 150% 1 Min,180% 2Min

6. Ambient Temp./Moist.:-10 to 60 degree C(no freeze) / less than 90%(no frost)

7. Altitude: less than 1000m.

8. Protection level: IP20.

9. Way of install: wall mounted, floor stand.

10. Cooling way: forced-air cooling.

11. Anti-jamming ability meets to GB/T 15153.1(IEC60870-2-1) 4 class high frequency interference test; common mode: 2.5KV, 1MHz, 2s; differential mode: 1.0KV, 1MHz,2s.

12. EMC meets to GB/T 17626.4(IEC61000-4-4), GB/T 17626.3(IEC61000-4-3), GB/T 17626.2(IEC61000-4-2)

Optional table for Elevator energy saver device

Main technical parameters