Description

GZD（W） series dc power cupboard, applicable to small and medium-sized power plants, substations, as the dc high voltage circuit breaker operating mechanism and close, the relay protection and automatic device, signal device such as power supply and the emergency lighting and control the operations used with dc power supply.

HF Swiching DC Power

• The system adopts HF switching power rectifying modular(N+1)in the mode of redundant parallel combination for power supply,thereby reliability is guaranteed.

• Rectifying modular adopts soft switching resonance and PWM pulse-duration modulation technology,featuring small,light and efficient.

• Rectifying modular can be lively inserted and removed,featuring easy operation and maintenance.

• The technologies of hardware low-differentiation and automatic even flowing are introduced,hence the property of ideal even flowing is enabled in the course of multi-modular combination operation.

• Monitoring system adopts touchable liquid crystal display(LCD)in Chinese and acousto-optic alarming.

• The parameters for each part of the system may be set and the rectifying modular may be controlled for its start and shut-off,and in the meantime,the voltage of mono-battery and insulation conditions of each delivery tributary line may be monitored via monitoring system.

• Functions intelligent control over the battery.

  Functions AC leading-in phase lack protection and anti-lighting.

• Possesses interfaces RS232,RS485 and MODEM to perform "four-remote"function to DC power system,so as to satisfy the demands of no guard needed in the transformer station.

• 48V(DC/DC)communication power modular and(DC/AC)inversion power device may be chosen for integration in accordance with the user`s requirements.