Thyristor power supply covers rectifier, AC voltage regulator, AC power regulator and AC-AC frequency converter.

1. Working Principle

• Thyristor power supply consists of transformer, power unit, controller and auxiliary circuit, realizes voltage, current and frequency control through phase shift angel control.
• Adopts phase shift transformer and sequence control etc. technology to improve voltage or current waveform, increase power factor and reduce harmonic in input, output current.
• When output current is high, adopts double star circuit to improve EMC.
• Adopts DSP as control core, touch screen for HMI and multiple communication protocol for distributed control.

2. Main Circuit Principle

We use high-power thyristor rectifier power supply for the system. Each rectifier is consist of a pulse rectifier transformer, a set of 12 double star, rectifier bridge, a set of control system. Main circuit topology is shown in figure.

3. Rectifier Characteristics

• Significant saving, saving 10% -40%, more than 95% efficiency
• All equipment is through rigorous testing and long aging test
• Small size,
• Light weight
• Protection function, with phase, overcurrent, overvoltage, short circuit, overheating protection function;
• Current, voltage and working time digital display
• Working time control, rapid protection and automatic shutdown feature.
• Constant voltage, constant current control options, high power factor, small grid pollution, without interference

4. Main technical parameters

Note:

We could design products as customers required.

(We have rich project experience and strongest technical team about 100 engineers)

5. Control unit

The system is independently developed by our company, has perfect flexible and intelligent control performance. The control core is TI company’s high accuracy DSP chip TMS320F28335, the arithmetic speed could reach 150MHz, which has very strong handling ability. Pulse formation unit use Altera compan’s high accuracy CPLD chip EPM1270, pulse accuracy and symmetry degree is very high. 

6.Detailed Photos for reference

7. Application filed

Electrochemistry: zinc, chrome, nickel and tin plating, electrolysis of rear earth,hydrogen fluoride, copper, copper foil, electro machining, polarization, anti-corrosion, electrophoresis, presensitized plate.

Crystal growth: monosilicon, polysilicon, sapphire, silicon carbide SiC, gallium arsenide GaAs, indium phosphide

Metal surface treatment:anodizing, hard anodizing, aluminum foil corrosion, surface coloring, cleaning

Environment protection:waste water treatment, sludge treatment, sea water desalinization

Electric drive:DC speed regulation, frequency inverter, Rail transport and excitation.

Heating:Resistance heaing furnance, arc heating furnace, pip heating.

Other fields: communication, battery charging, DC operation, motor soft start, motor excitation, electric heating.

8.Advantages

1) Long history: We are rectifier manufacturer about 55 year’s history. We are found in 1960.

2) Strong technical team: We have two strong technical teams about 100 engineers. One is for thyristor rectifier and another is for IGBT rectifier.

3) Best service: We could supply best service to customers for longtime. Including pre-sale service and after-sale service.

4) Energy saving: 10-15%, efficiency higher than 90%, cheaper by 10-15 percent in actual power consumption due to low conversion loss. Power saved is power earned.

5) Small size: Thyrirstor  Power supplies occupy less space occupied by traditional type.

6) Weight:  Thyrirstor power supplies weigh less than Traditional type.

7) High reliability: Thyrirstor power supply  works at FULL rated value 24 hours 365 days without failure. PROVEN High reliability. Cabinets fully sealed to prevent acidic alkaline air and dust and moisture from entering. Redundancy technology for non-stop operation.

8) Long lifespanpossible: Good quality components used reasonable design to ensure long lifespan (15-20 years).

9) User friendly controls and easy to read digital meters: Touch screen option for more convenience.

10)Easy to repair and maintain: touch screen supply fault type alarm, self diagnosis.

9. Benefits to customers

•  All units guaranteed 12 months from supply against failure, bad workmanship and material         defects excluding misuse of operational conditions
• Long history proved high reliability and high quality by foreign and domestic applications
• ISO9001:2008 international quality standard, military standard quality control
• Strong technical ability ensures reasonable, professional and safe design
•  Good quality components are used
•  Full load testing before shipment
•  Successfully used for sapphire, silicon industries which require strict quality
• Military application proved high reliability
•  Complete protections
•   Exclusive Power Supply supplier for UK Diamox

10. Certification

11. Export Country

12. Technical team&Production

• Wa are Beijing Chunshu Rectifier Co., Ltd. and founded in 1960, located in Beijing, China, with registered capital 72.84 million RMB, total asset 0.22 billion RMB, occupied area 14342.63square 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.

• The company has strong R & D team, 94 technical people.   
• Our company and Beijing Jiaotong University held the Joint Institute for Power Electronics
• Cooperate with Tsinghua University to develop doubly-fed wind power inverter
• Carry out Joint Training Program for engineers with Xi’an University of Technology
• Has our own Beijing municipal class technical center.
• Establish post-doctoral workstation and innovative studio.
• Have 7 patents, 6 software copyrights.