3. Magnetic Synthesizers:
- Magnetic synthesizers use a similar operating principle to CVTs except they are 3-phase devices and take advantage of the three-phase magnetics to provide improved voltage sag support and regulation for three-phase loads.
- They are applicable over a size range from about 15 to 200 kVA and are typically applied for process loads of larger computer systems where voltage sags or steady-state voltage variations are important issues.
- Energy transfer and line isolation are accomplished through the use of nonlinear chokes. This eliminates problems such as line noise.
- The ac output waveforms are built by combining distinct voltage pulses from saturated transformers.
- The waveform energy is stored in the saturated transformers and capacitors as current and voltage.
- This energy storage enables the output of a clean waveform with little harmonic distortion.
- Finally, three-phase power is supplied through a zig-zag transformer.
4. Electronic Tap Switching Regulator:
An electronic tap switching voltage regulator is a device that regulates voltage by electronically changing winding-taps on a transformer.
The typical electronic tap switching voltage regulator works very much like the mechanical tap switching regulator except that it replaces mechanical servo drives and brushes with solid-state semiconductor switches.
5. Motor-Generator Set:
Motor Generator Sets (also called MG sets) provide clean reliable power by isolating the electricity across the system.
The electricity runs the motor, which spins the generator to provide new electricity.
A motor powered by the line drives a generator that powers the load.
Flywheels on the same shaft provide greater inertia to increase ride-through time.
The motor generator cleans the regulation in voltage and conditions the power, while isolating the load at the same time.
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