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Regenerative drive 280-400KW, Chopper Voltage 620V
Description of Regenerative Unit:
This series adopts microprocessor chip with fast respond, high-accuracy process control,making inverter operating in four-quadrant, continuously feedback,and regenerative braking frequency below 40%. Electric regeneration efficiency up to 97%. Using SPWM modulation to greatly reduce distinctive peaks of current and form perfect sine wave current, input side current THD lower than 5%, power factor up to 99%.It can prevent power grid flowing back, overheating, overcurrent, out of phase, undervoltage,and short circuit.
Characteristics of this series:Power range:55KVA-400KVA
Rated current: 150-900A
Output AC power voltage : three-phase AC 400
Chopper voltage: DC620V±5V
Operating frequency: 46-60Hz
Accuracy index: setting error less than 0.5%
Overload capability:110% long-term,150% 1min,180% 2s.
Working conditions: containing built-in intelligent fan, high and low order harmonic filter, external short circuit protection.
Protection class: IP20
Protection function: OCP,OVP,UVP,overheating protection and polarity protection.
EMC: Accord with GB/T 17626.4( IEC61000-4-4)4 class EFT interference test;GB/T 17626.3( IEC61000-4-4)4 class radiation EMF test;GB/T 17626.2( IEC61000-4-4)4 class ESD test.
Environmental ambient temperature: -10℃~+60℃（non-frozen）
Ambient humidity: below 90%(non-frost)
Altitude: less than 1km
Cooling mode: forced-air cooling
Installation method: wall-mounted, floor type
Application of Regenerative Unit:Dedicated for mine hoist, salvage ship, winch, forging equipment, oil-fieldpumping unit,crane, port crane, tower crane, high power cutter, etc.
|Regenerative drive and Braking unit|
|Nominal Current Range (A)||900|
|Power range (KW)||280-400|
|Chopper Voltage (V)||620|
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