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SCR Based Phase Angle Power Controllers

 

Fastron have manufactured over 7000 Power controllers since we first introduced our SCR power controllers to the Australian market. Still 100% made in Australia, our Oztherm Power Controllers still prove to outlast all major competitors due to a rugged design built to withstand the harshest conditions in remote Australian regions. 

Suitable for Primary or secondary control, Fastron can also manufacture a secondary rectifer to suit. You can find some of our (7000+) custom made rectifer stacks here. 

We offer customisations and on repair services for all the control gear we manufacture.

In addition, Fastron proudly represents Advanced Energy (formerly AEG) the most cutting edge in peformance SCR Controllers and the original inventor of the Burst Fire SCR Control method. Their range includes Thyro S, Thyro A, Thyro AX, and Thyro PX Series SCR Power Controllers.  These controllers can operate in both Burst(TAKT) or Phase Angle(VAR) Firing Modes.  the Controllers can operate in burst fire mode even on the primary of the transformers with effectively zero DC offset.


FAQ's


1. What is an SCR power controller and how does it regulate power?
An SCR power controller regulates power by controlling the phase angle or burst firing of voltage to a load. It uses silicon-controlled rectifiers (SCRs) to adjust the amount of power delivered, offering precise and efficient control. These controllers are ideal for applications where smooth and reliable power modulation is essential.
2. Where can I buy a reliable SCR controller in Australia?
You can buy a reliable SCR controller in Australia from Fastron Electronics. With over 7000 units manufactured and a reputation for rugged, long-lasting design, Fastron offers Australian-made solutions as well as advanced models from global brands like Advanced Energy for a wide range of power control applications.
3. What is the difference between an SCR power controller and a phase angle controller?
An SCR power controller can operate in multiple modes, including phase angle and burst firing. A phase angle controller specifically adjusts the conduction angle of each AC cycle, while an SCR controller may offer both control modes, providing greater flexibility for different load types and system requirements.
4. How does a phase angle controller manage power delivery in AC systems?
A phase angle controller manages power by adjusting the point in each AC cycle where the voltage is applied to the load. By controlling the conduction angle, it delivers a proportional amount of power, allowing smooth and gradual regulation. This is especially useful for resistive loads and processes that need fine control.
5. Can I use SCR controllers for heating applications?
Yes, SCR controllers are ideal for heating applications. They offer precise temperature control by regulating the power delivered to electric heaters. Their smooth operation helps prevent power surges and wear on components, making them a preferred choice in both industrial and commercial heating systems.
6. What are the main applications of SCR power controllers in industrial settings?
SCR power controllers are widely used in industries for controlling electric heaters, motor speeds, lighting systems, and transformer primaries. Their ability to deliver stable and adjustable power makes them suitable for demanding environments, including manufacturing plants, process control systems, and remote operations.
7. How does a phase angle controller improve the efficiency of electrical systems?
A phase angle controller improves efficiency by delivering only the required amount of power to the load. This controlled delivery reduces energy waste, enhances system stability, and extends the life of electrical components. It's especially effective in systems requiring gradual power adjustment and minimal electrical noise.
8. Are SCR controllers suitable for high-voltage applications?
Yes, SCR controllers are suitable for high-voltage applications, especially when designed with robust components and insulation. Fastron Electronics offers solutions that handle demanding conditions and voltages, making them ideal for industrial-scale power control across a variety of sectors.
9. What is the role of SCR controllers in controlling motor speeds?
SCR controllers help regulate motor speeds by controlling the voltage or current supplied to the motor. This method ensures smooth acceleration and deceleration, minimising mechanical stress. They are particularly useful in systems where variable speed control is essential for performance and energy efficiency.
10. How do I install an SCR power controller in my electrical circuit?
To install an SCR power controller, mount it securely in the control panel, connect it to the appropriate power and load terminals, and configure it based on your application. Professional installation is recommended to ensure proper safety, compatibility, and performance, especially in high-voltage environments.
11. Can SCR controllers be used in conjunction with other power control systems?
Yes, SCR controllers can be integrated with other power control systems such as PLCs, sensors, and feedback loops. This allows for advanced automation and more precise regulation in complex industrial processes, enhancing overall system efficiency and control flexibility.
12. Do phase angle controllers provide smooth control of power?
Yes, phase angle controllers provide smooth and continuous control of power delivery. By adjusting the conduction phase within each AC cycle, they avoid sudden surges and provide fine-tuned power adjustments, which is critical in sensitive applications like heating and lighting systems.
13. What is the maximum current and voltage capacity of your SCR controllers?
The SCR controllers available from Fastron Electronics come in various current and voltage capacities to suit different applications. Custom configurations and higher-rated models are available on request to support industrial systems with more demanding power requirements.
14. Are SCR power controllers available for both AC and DC applications?
Yes, SCR power controllers are available for both AC and DC applications depending on the configuration. Fastron Electronics provides flexible control solutions for a range of use cases, including transformer primaries, DC heating, and motor control.
15. Do your SCR controllers comply with Australian electrical safety standards?
Yes, SCR controllers supplied by Fastron Electronics are designed and manufactured to comply with relevant Australian electrical safety standards, ensuring safe and reliable operation across industrial and commercial environments.
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