Thyristor Power Regulators

Transcription

1 READY TO USE SCR-BASED HIGH PERFORMANCE & ENERGY EFFICIENT 1-PHASE, 2-PHASE AND 3-PHASE POWER REGULATORS SCR POWER REGULATORS FROM 15 AMPS TO 750 AMPS AND HIGHER Description RADIX brings you a full range of Thyristor (SCR) Power Regulators, which are compact in size, robust in design and easy to maintain. These Power Regulators control power to the resistive or inductive heating loads which can be single-phase, two-phase or three-phase. They can switch load power extremely fast providing the means to respond rapidly to command changes, load changes and power supply changes. This feature allows the control of fast responding loads and eliminates the negative effects of variations in load or supply voltages that can occur with other types of control. Radix power regulators comprise of triggering card, suitably rated back-to-back connected SCR modules mounted on special aluminium-alloy heat sink duly isolated electrically. The cooling is either natural cooling or forced air cooling using high speed noiseless air circulating fan(s). Input and output terminals are clip-on type heavy duty connectors or copper bus bars. For safety, suitably rated semiconductor fuses and thermal cut-out is provided. The entire assembly is mounted on the very sleek and easy to install Anodized Aluminium enclosure with safety ABS removable covers. Features Operates on phase angle zero cross over technology 15 Amps to 750 Amps current carrying capacity Single phase / 2 phase / 3 phase versions. Suitable for 3 star without neutral / closed delta configuration. Auto / Manual operation. Accepts (4-20)mA / (0-5)VDC / (0-10)VDC control input. Soft start for smooth control. Adjustable power and current limit. Isolated heat sink for safety. Simple and Modular design for easy servicing of cards and Thyristors. Ideally suitable for resistive, transformer, inductive or heating loads like Silicone Carbide and Molybdenum which exhibits significant changes of resistance with increase in temperature. Cooling fan have temperature control which extends it life. It has a Relay output for remote supervision under following conditions : Phase failure, Fuse blown and Heat sink Over temperature Ideal replacement for traditional mechanical contactor / relay accepting DC logic input signal CAT#450R0/P1/5/300613/A

2 Technical Specifications General Characteristics Main power voltage : 220VAC, 380VAC, 440VAC, 480VAC, ±10% Assistance voltage Rated current Work frequency Output type Phase input control signal : 220VAC, 50/60Hz : 25A 35A 50A 60A 80A 100A 125A 160A 200A 250A 300A 350A 400A 600A 750A : 50 / 60Hz : Phase angle control : 4-20mA, 1-5V, 0-10V, 2-10V, 0-5V, 8 seconds Soft start Manual/Auto Relay changed Output voltage range : 0-100% Use environment Insulation resistance Strength of press-resisted : 10~50 C, Humidity Under 90% RH : Over 20M (Power & external cover) Over 20M (Input Signal & external cover) : 2500VAC/1min between power & external cover 1000VAC/1min between power & external cover Special Characteristics Advantages SCR power controllers provide a relatively economical means of power control. SCR power controllers cost less and are more efficient than saturable core reactors and variable transformers. Compared to contactors, SCR power controllers offer a much finer degree of control and do not suffer from the maintenance problems of mechanical devices. Features and benefits of SCR power controllers over other forms of control include: High reliability Because the SCR power controller is a solid-state device, there are no inherent wear-out modes. Thus, they provide virtually limitless and trouble free operation. Infinite resolution Power, current or voltage can be controlled from zero to 100% with infinite resolution. This capability allows extremely accurate, step less control of the process. Selectable control parameters The SCR power controller can provide useful features such as current and voltage limiting. The ability to control the desired parameter as a function of a command signal and to incorporate limiting features is not normally available with other types of control. Minimum maintenance Because they are solid state there are no moving parts to wear out or replace. Therefore, the routine replacement required in some forms of control is eliminated. NOTE : DUE CONSTANT IMPROVEMENT SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Applications Radix Thyristor Power regulators has a varied application and can be used with heating elements like Nichrome, Kanthal - A1, Super Kanthal, Silicon Carbide/Molybdenum Di-Siliside, Infra Red, etc where precise and accurate temperature control is desired. It can also be used in DC rectification application. Few of the industrial application where Radix power regulators are used 1. Heat treatment 9. Extruders 2. Automobile industry 10. Plastic Industries 3. Stress Reliving 11. Environmental Chambers 4. Jewellery industry 12. Upsetting machines for Engine Valves manufacturing 5. Wax burn out 13. Electro magnetic Cranes 6. DC rectifiers 14. Multi zone heating system 7. Low voltage - High Current heating system using Transformers 15. Electrolysis 8. Injection moulding machines 16. Research Laboratories, Atomic power stations and many more applications CAT#450R0/P2/5/300613/A

3 Ready-to-use SCR-based Control Panels from Radix RADIX offers Ready to use Control Panel for electrical furnaces, ovens or any other electrical heating system, which can be used by the OEMs or the end users. The panels are fabricated using CRC MS sheet duly powder coated / EPOXY coated (usually Siemens Grey colour - other colour shades are also available on request) or in Stainless steel. These panels comes fitted with accessories depending on the application like highly accurate & versatile controller, safety controller, PLC, HMI. Current meters, Energy regulator, MCB / MCCBs, safety contactors, etc. The front facia of the panel incorporates switch gear components, meter, etc for easy access and user friendly for safe operation of the panel. The incoming power line MCBS or MCCBS of suitable ratings are used for switching the electrical supply to the panel. Suitably rated fuses are incorporated per phase or per heating arm. Digital or Analog current meters are installed on the panel to monitor the current flowing through the load. SCR Power Regulator Configuration For Resistive Heater Load CAT#450R0/P3/5/300613/A

4 TABLE 1 SINGLE PHASE RESISTIVE LOAD - PHASE ANGLE - WITH PROTECTION VAC 1 TPR-SP TPR-SP TPR-SP TPR-SP TPR-SP TPR-SP TPR-SP TPR-SP TPR-SP TABLE 2 TWO-PHASE RESISTIVE LOAD - PHASE ANGLE - WITH PROTECTION VAC 1 TPR-2P TPR-2P TPR-2P TPR-2P TPR-2P TPR-2P TPR-2P TPR-2P TPR-2P TABLE 3 THREE-PHASE TRANSFORMER LOAD - PHASE ANGLE - WITH PROTECTION VAC 1 TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T TPR-3P T CAT#450R0/P4/5/300613/A

5 TABLE 4 THREE-PHASE RESISTIVE LOAD - PHASE ANGLE - WITH PROTECTION VAC 1 TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H TPR-3P H Ordering Information Specify models from Tables : Single-Phase, 220 VAC, Resistive Load : See TABLE 1 Two-Phase, 380 VAC, Resistive Load : See TABLE 2 Three-Phase, 480 VAC, Transformer Load : See TABLE 3 Three-Phase, 480 VAC, Resistive Load : See TABLE 4 AN ISO 9001:2008 COMPANY INSTRUMENTS T : x 701 F : E : sales@radix.co.in SENSORS T : x 732 F : E : sensors@radix.co.in GAUGES T : x 733 F : E : gauges@radix.co.in AUTOMATION C : C : E : automation@radix.co.in Radix Electrosystems Pvt Ltd, B-14, 2nd Floor, Ghanshyam Indl Estate, Veera Desai Road, Andheri (West), Mumbai , India Tel : Fax : sales@radix.co.in CAT#450R0/P5/5/300613/A