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power supplyAnd regeneration units

Revcon front-end with or without pre charging circuit, used for DC bus

shouldRevcon Corporation^® RFECapable of sufficient energy flow in both directions.In driving mode, the driver is powered by RFE, and energy is directed back to the main power source when generating regenerative current.This way, energy will not be wasted like when using a brake chopper.

Compared with the brake chopper, the continuous start-up regeneration process ensures that there is only a small voltage rise in the DC bus.The feed function of the front-end unit of Revcon company can be supplied by several drive controllers through the DC bus, compared to using only one central oneRevcon Corporation^® RFEmodular.Due to this feature, the main power connection of the drive is no longer required.The pre charging connection of RFE B3/D3 limits the surge current to the allowable value.RFE B2/D2 does not have a pre charging circuit for DC bus capacity.When powered through a DC bus, this version can be connected to a driver with its own pre charging circuit.The front-end unit of Revcon companyRevcon Corporation^® RFEOptimized for applications that have installed many drivers, such as crane installation, textile or printing machinery.However, RFE can also be connected to a single drive for upgrading to a 4Q drive.
The rated current of the RFE model is continuous feed power, which can be transmitted at 100% duty cycle.The driving and regenerative current waveforms mainly correspond to the waveform of the input current of the converter, and are therefore suitable for standard industrial networks.

Benefits:

Compact in size
The braking energy of the drive system is regenerated into the network
No need for the main power supply of the frequency converter!
The power can perfectly adapt to the application
Output range 4kW to 300kW
High flexibility: power supply voltage between 230, 400, 460, 500, and 690V
Network frequency 40-60Hz
Multiple drive controllers can be coupled with DC intermediate circuits
Low loss, high-quality IGBT power unit
self-synchronizing
High reliability: electronic overload protection in feedback operation
Through effective real-time control and simulation operation principles, power supply voltage, phase rotation, and temperature can be monitored with extremely high efficiency,>99%/>98% (drive/regeneration mode)
Realize highly dynamic braking operation
User friendly startup method: No programming or parameter settings required
Significantly reduce heat loss through regenerative operation.
Due to the innovative concept, the maintenance free power feedback unit
Duty cycle=100%

Data Sheet - Power and Regeneration Unit REVCON RFE

Data Sheet - Power Supply and Regeneration Unit REVCON DC (S)

Operating Instructions - Power and Regeneration Unit REVCON RFE

Operating Instructions - Power Supply and Regeneration Unit REVCON DC (S)