1. Current Limiting Reactor (CLR)
Current Limiting Reactor is utilised in lowering the short circuit current during fault. They are designed explicitly under different fault level conditions.
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2. Passive Filter
A passive filter consists of passive components, inductance and capacitance that needs to be specifically designed to solve the reactive power or harmonics problems.
3. Active Harmonics Filter
Active harmonic filters are parallelly connected filters that are used to reduce or mitigate harmonics to tolerable levels as defined by IEEE-519.
4. Uninterruptible Power Supply (UPS)
Uninterruptible power supply maintains the constant power supply to load during emergencies where the incoming supply from utilities failed.
5. Voltage Dip Compensator (VDC)
Voltage dip compensator is designed to maintain the voltage applied to the load during sags.
6. Surge Protective Device (SPD)
Surge protective device is connected in either series/parallel to the equipment, preventing large surge current from flowing to the loads.
7. Static Var Compensators (SVC)
SVC dynamically injects the required amount of reactive power into the electrical system, improving the power quality.
8. STATCOM / Static VAR Generators (SVG)
STATCOM combined fast-acting power electronics system and reactors to provide and absorb reactive power, achieving voltage regulation.
9. Voltage Stabiliser
Voltage stabiliser is used to supply a constant voltage to the load. It regulates the unbalanced input voltage to protect equipment that is sensitive to voltage variations.
10. Voltage Optimiser
Voltage optimiser optimises the voltage from utilities according to the equipment requirements, resulting in lower power consumption.