Protection
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Questions - Answers
Why are there Small Red Lights Around the CCTV Cameras?
What is the Purpose of the Red LEDs around a CCTV Security Camera? The small red lights around CCTV (Closed Circuit Television) cameras are typically infrared (IR) LEDs (Light Emitting…
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Motors
4-Point Starter – Circuit and Working of Four-Point Starter
What is Four-Point Starter? Working and Circuit Diagram of 4-Point Starter What is a Four-Point Starter? The construction and working principle of a Four-Point starter is almost similar to the…
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Motors
3-Point Starter – Circuit and Working of Three-Point Starter
What is Three-Point Starter? Working and Circuit Diagram of 3-Point Starter What is a Three-Point Starter? A Three-Point starter consists of a tapped resistor which is sealed in a ventilated…
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Transformer
What is an Isolation Transformer? – Its Construction, Working and Applications
Isolation Transformer – Construction, Working and Applications What is an Isolation Transformer? Transformers are electrical machines that are used to transfer one form of AC electrical energy to another form…
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Protection
Which One is More Dangerous? 120V or 230V and Why?
Which AC Voltage Level is Safer? 230V or 120V in Domestic and Residential Applications We all know that the domestic and residential voltage levels at the homes are 230V AC…
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Power System
Types of Faults in Electrical Power System
Different Types of Faults in Power Systems. Causes & Effects, Severity & Occurrence and Fault Protection Devices In modern days, we cannot imagine our daily life without electricity. Our homes, offices…
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Protection
ELCB (Earth Leakage Circuit Breaker) – Construction, Types & Working
What is an ELCB? Types, Working, and Application of Earth Leakage Circuit Breaker ELCB or Earth Leakage Circuit Breaker is a protection device that protects against earth leakage. Initially, the…
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Protection
Oil Circuit Breaker (OCB) – Types, Construction, Working and Applications
OCB – Oil Circuit Breaker – Construction and Working Principle Circuit breakers are protection devices that protect circuits and equipment during fault conditions. They use different kinds of dielectric mediums…
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Protection
SF6 Circuit Breaker – Types, Construction, Working and Applications
SF6 Circuit Breaker (Sulfur Hexafluoride Circuit Breaker) – Construction & Working Principle Circuit breakers are used for protection against fault current in electrical systems. They abruptly break the circuit and…
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Protection
MCCB (Molded Case Circuit Breaker) – Construction, Types & Working
What is MCCB (Molded Case)? Types, Construction, Operation & Applications Circuit breakers are electrical devices that offer protection against fault current. They use different medium to safely extinguish the arc…
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