High efficiency, high reliability, high intelligence, long lifespan

High Safety, EMC performance, passed CE testing

54 years enterprise

Company Introduction

Beijing Chunshu Rectifier Co., Ltd. was founded in 1960, located in Beijing, China, with registered capital 72.84 million RMB, total asset 0.22 billion RMB, occupied area 14342.63 square meters, total about 300 employees.

We are professional power supply manufacturer, include plating and electrolysis power supply, LED sapphire used power supply, electric arc furnace power supply, medium-frequency induction power supply, polysilicon reducing furnace power supply, hydrogenation furnace power supply, monosilicon furnace power supply and ingot furnace power supply etc. series.

By use of strong technical strength, leading production craftwork and high efficient management team, Chunshu supplies optimized solution integrating design, R&D, manufacture and service.

Product Parameters

Items	Technical parameters
AC input voltage	3 phase 220V, 380V, 415V, 480V±10%, 50/60Hz
Output voltage	DC 0-14V adjustable
Output current	DC 0-8000A adjustable
Regulation range	0-100%
Power factor	≥0.9(full load)
Accuracy of output current, voltage	≤0.5%
Efficiency	≥90%(full load)
Protection grade	IP54 for water cooling, IP30 for forced air cooling
Cooling method	Water cooling or forced air cooling
Control mode	Constant voltage, constant current
Operation mode	Local touch screen, remote control box or communication
Communication protocol	RS485, Profibus DP, MODBUS
Working method	Long time full load continuous operation
Protections	Overheat, input over/under voltage, output overvoltage, output overcurrent, over water temperature, under water pressure

Process features

Adopts high quality copper bus bar for connection, the copper bus bar is through surface acid cleaning and nickel plated, the interface is through embossing treatment to lower contact voltage drop and line loss. Reasonable water loop connection, taking equipotential water loop connection method to avoid potential difference. The cabinet is antimagnetic structure, which may generate local eddy current heating, using stainless steel material to cut off the magnetic circuit. Condensation controller is equipped inside the cabinet. Rectifier cabinet is through anti corrosion treatment.

Control unit

The control unit includes DSP digital control system, S7200 logical control system, Siemens touch screen

n Adopt fully digital control system to make sure consistent triggering pulses, and strong anti-interference, anti-magnetic ability and high reliability

n Output current has zero start function, could adjust to rated current continuously and smoothly

n Logical control system adopts Siemens CPU S7-200 and with Profibus DP.

n Control operation panel adopts Siemens TP 177B.

Protection unit

The power supply has protections of RC protection, varister over voltage protection, overcurrent protection, overvoltage protection, overheat protection and grounding protection etc.

n SCR is parallel connected with resistors and capacitors to suppress overvoltage effectively. At the while resistance could consume some energy which may cause over-voltage

n Secondary side of transformer adopts zinc-oxide varistor to absorb peak of transient voltage

n Overcurrent protection: detect output current, When exceed 1.1 times of the maximum output current (adjustable), send alarm signal, block triggering pulses, cut off input high voltage switch and emits light alarm

n Overvoltage protection: detect output voltage, when exceed 1.1 times of the maximum output voltage (adjustable), send alarm signal, block triggering pulses, cut off input high voltage switch and emits light alarm

n Overheat protection: detect SCR case temperature, send alarm signal when exceeding 85°C, block pulses, cut off input high voltage switch and emits light alarm

n Grounding protection: the cabinet could be grounded reliably and safely

n SCR fault feedback protection: thyristor status is feedback to control system through the triggering board, and conduct real time detection to thyristor’s triggering pulses loss, thyristor short circuit etc. fault

Quality Control

Aftersale Service

n Supply detailed operation manual and troubleshooting table

n If components are broken within guarantee period due to power supply design or component bad quality, supply replacement free.

n For overseas customers, in case of problems with power supply, respond within 24 hours from receiving customer's written inform.

n Supply technical support to find out problem reason and guidance of troubleshooting.

R&D Ability

Exported Countries

Production

Certificate

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