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Difference between MPCB and MCCB

Motor Protection Circuit Breakers and Moulded Case Circuit Breakers and are devices used to open and close a circuit manually and interrupt the circuit automatically on the occurrence of faults.…

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Difference between RCCB and RCBO

RCCBs and RCBO are residual current protection devices. Residual current protection is achieved by monitoring the flow of current in the line and neutral. In a healthy circuit, the current…

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What is there inside and MCCB?

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Difference between MCCB and RCCB

Difference between MCCB and RCCB MCCBs and RCCBs are circuit protection devices with two different application. When the former protect against overload and short circuit, the later protects against Residual…

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Difference between MCB and MCCB

MCBs and MCCBs have commonly used circuit protection devices. These devices provide protection against overcurrent and short circuits. In this article, let us discuss the difference between MCB and MCCB.…

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Difference between contactor and relay

Contactors and relays are electrically operated switches used for the control and switching of loads. The difference between them primarily lies in the load current that they can handle, where…

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What is ammeter selector switch?

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Ammeter selector switch is basically a normal three position switch. In large Electrical distribution panels, an ammeter is used to monitor the current through each line. (more…)

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Why are potential transformers used in power system?

Why are potential transformers used in power system?

 

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Why are current transformers used in power system?

Why are current transformers used in power system? Protective relays coils and measuring instruments such as an ammeter, watt meter and energy meter are very sensitive devices and cannot be…

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What are the basic requirements of a protection system used in a power network or equipment?

The following are the basic requirements of any power system protection system: ReliabilitySimplicitySelectivitySensitivitySpeed of operationEconomy Circuit breaker

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