Thyristor Rectifiers for Chlor-Alkali Electrolyzer
CBC is only Thai company who can design and build High Power Thyristor Rectifiers which have been running well for 20 years. To meet our clients’ special needs, we offer an unrivaled range of products to suit every type of application. CBC’s fully staffed degreed engineering department provides clients with custom units.
Design and Manufacturing
- Our dc power supply product range encompasses 1000 ADC power supplies up to 30,000 ADC 1000Vdc system.
- We design and manufacture in the supply of 6, 12, 18 and 24 pulse rectification systems. With agencies becoming more and more stringent on harmonic requirements, CBC can help customers meet these challenges. We can supply transformers up to 50 MVA.
- Our DC Rectifiers are equipped with world class quality equipment such as mainly ABB Thyristors, Enerpro-inc Trigger Firing boards, DUA liquid cooling plats, LEM DynAmp Current transducers, FLOHE DC High power switches, Siemens PLC system
- Rectifier Transformer voltage is up to 30kV
- Cooling system dWFWF, dWFAF
- Applications are mainly Electrochemical for Electrolyzer to produce Chlorine
- Design, manufacture and test according to IEC and IEEE standards.
Professional design and assembly
Design & Engineering
With extensive expertise in multiple fields, including power electronics, mechanical engineering, thermodynamics, and PLC systems, we offer a comprehensive understanding of a range of high power rectifiers.
- Deionized WFWF & AFWF close loop cooling system
- Walk-in access easy to maintenance
- Proper mounting force with DYNEX semiconductor clamps
- Side glass for visual inspection
ENERPRO INC.
Thyristor firing boards
FCOG61HV firing board combines the circuitry of the FCOG6100 firing board with high voltage tolerant, high output gate pulse transformers and increased creepage distances. This provides enhanced isolation for AC line voltages to 900 Vac and enhanced gate trigger current for large area devices.
The FCOREM60 is used in applications where the control circuitry and SCRs are separated by long distance (remote operation) and require higher output pulses. It can also be used with the FCOG6100 or FCOVF6100 to provide high output pulses in order to fire parallel SCRs, or in combination with the FCOG61HV firing board, allowing 4-quadrant operation at mains voltage up to 900 VAC.
Liquid cooling plates
Liquid Cooling Series KS
Thyristors cooling system use custom size of base profiles, sealed with a unique patended technology that can withstand an working pressure up to 200 bar offers an
optimal cooling unit for nearly every resistor size. At a certain volume custom specific profiles can be initialized.
The volume depends on the size of the profile.
The set clamps use Disc Springs to DIN 2092/2093 to apply the clamping force over a wide temperature range. The clamps also incorporate pressure indicators to make installation simple. Isolation is provided by a high quality moulded insulator and PTFE sleeving.
Liquid Cooling Series VBA
Manufactured by Vacuum Brazing Technology
๏ Optimum design of the cooling path based on the layout of the semiconductors
๏ Lowest possible thermal resistances
๏ Leak free, high strength and high mechanical load
carrying capacity with burst pressures up to 1150 psi
๏ No structural changes in the material
๏ Clean parts without residual flux
๏ High reliability, durability and life cycle
๏ Low distortion due to uniform heating and cooling
during brazing
Heat Pipe System
Polarizer rectifiers use heat pipe systemThe high heat flux density generated by the semiconductors is absorbed by the heat spreader block and then, furthermore by the heatpipes. Then the Heatpipes transmit the heat isothermally to the fins.
Dynex Thyristor mounting clamps
CBC Rectifiers use Dynex semiconductor clamps which provide a range of standard clamps designed to accommodate press pack semiconductors with tie rod centres from 75mm to 210mm and clamping force from 5kN to 138kN.
The set clamps use Disc Springs to DIN 2092/2093 to apply the clamping force over a wide temperature range. The clamps also incorporate pressure indicators to make installation simple. Isolation is provided by a high quality moulded insulator and PTFE sleeving.
Completed Package design solutions
We would like to offer our expertise in designing harmonic filters for your electrical power system. As you may know, high power rectifiers can generate harmonic currents that can impact your system. However, our team has extensive experience in creating custom designs that can effectively reduce or eliminate these disturbances. Additionally, we are able to provide custom designs for polarizer rectifiers to meet your specific requirements.
Harmonic Filters and Power Factor compensation
Inclusive Power factor compensation and Harmonic analysis
Custom design:
- Air core reactor for outdoor solution
- Iron-core reactor for metal enclosure solution
- 11kV-24kV system
Polarizer Rectifiers
A Polarizer rectifier is used to keep polars of electrolyzer during main rectifier shutdown. Due to the DSA Electrode is a titanium substance coated with TiO2 + RuO2 mixture. RuO2 coating will be decreased during shutdowns by the reverse current arising. The Polarizer rectifier will keep forward current during the main rectifier shutdown. RuO2 content must be >25 mol%. The lower RuO2 content the lower conductivity of Anode the result high electrical losses.
Custom design:
- 6P/12P Thyristor rectifiers
- Power range: 30-120A
- DC voltage: 0-1000Vdc
- Optional: PLC control/RS485 communication