armature winding

What is Armature Winding and Types of Armature Winding

Armature Winding: The armature winding is the main current-carrying winding in which the electromotive force or counter-emf of rotation is induced. The current in the armature winding is known as the armature current. The location of the winding depends upon the type of machine. Generally there are two types of Armature winding in the DC…

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types of Reactor

What is reactor and what are the types of reactor

What is Reactor: A reactor is a coil which has large number of turns and whose ohmic resistance value is much greater. Reactors are used to limit the short circuit currents which can cause damage to the equipment’s of the power system. The additional reactance added in series with the system for protection, are called…

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grounding

Difference between Bonding and Grounding

Bonding vs Grounding Bonding is the lasting joining of metallic pieces to form a conducting path which ensures safe electrical continuity. Bonding is generally done as protection from electrical shocks. Any intentional or accidental connection between an electrical circuit or instrument and the earth is known as Grounding. Grounding ensures that all metal parts of…

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air circuit breaker

What is ACB & Working principle of ACB

Air Circuit Breaker (ACB) is an electrical device used to provide Overcurrent and short-circuit protection for electric circuits over 800 Amps to 10K Amps. These are usually used in low voltage applications below 450V. Air break circuit breaker the arc is initiated and extinguish in substantially static air in which the arc moves. Such breakers…

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medium voltage switchgear

what is switchgear and Types of switchgear

Switchgear: switchgear is the combination of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment from the abnormal condition is called switchgear. some examples of switchgear are given below, switches, fuses, circuit breaker, isolator, relays, current and potential transformer, indicating instrument, lightning arresters The switchgear system is directly linked…

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feeder

What is Feeder and Types of Feeder

Feeders: Feeder line is part of an electric distribution network. An electrical wiring circuit in a building which carries power from a transformer or switch gear to a distribution panel. Different feeders are connected to the feeder bus to feeds different loads like, motor loads, lighting loads, industrial machinery loads, air conditioner loads, transformer cooling…

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star and delta connection

Difference between Star and Delta connection of Motor

Star and Delta connection: Difference between star and delta connection are explained considering various factors like the basic definition of the connections, the existence of a neutral point, the connection of the terminals, the relation between line current and phase current and also between line voltage and phase voltage, speed, its insulation level, number of…

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isolator

Difference Between Circuit breaker and Isolator

An isolator is a disconnecting switch which operates under off load condition. It isolates the part of the circuit in which the fault takes place from the main supply. It is used in high voltage devices such as transformers, etc. Isolators block the DC signals and allow the AC signals to pass. Circuit Breaker is…

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Ac or DC current

What’s the Difference Between AC and DC Electric Shocks?

Difference between AC and DC Current An AC current is alternating in nature and follows a sine curve. It is continuously changing direction and passing through zero to a maximum positive value and then to a maximum negative value. The voltage of an AC current is a RMS or root mean square value, and the…

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Generator Load Testing

Generator Load Testing

Why Generator Load Testing: The purpose of most generator sets is to provide a reliable source of power to your facility or commercial operation during an emergency situation when power from the grid is suddenly lost or is not available in your environment. In the event of a power failure, you should have peace of…

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