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Isolators are used for disconnecting a circuit when
- a)Line is energised
- b)Line is on full load
- c)Line carries no current
- d)Can be operated under any condition
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Isolators are used for disconnecting a circuit whena)Line is energised...
Isolators are used to open a circuit under no load. Its main purpose is to isolate one portion of the circuit from the other and is not intended to be opened while current is flowing in the line. Isolators are generally used on both ends of the breaker in order that repair or replacement of circuit breaker can be done without and danger.
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Isolators are used for disconnecting a circuit whena)Line is energised...
Use of Isolators in Electrical Circuits
Definition of Isolators:
Isolators are switching devices that are used to disconnect a circuit from the source of power, and this disconnection is done when the circuit is not in operation.
Uses of Isolators:
Isolators are used in electrical circuits for various reasons. Some of the significant reasons are:
1. To provide safety to the workers:
Isolators are used to disconnect the circuit when the circuit is not in operation. This disconnection ensures the safety of the workers who are working on the circuit.
2. To provide safety to the equipment:
Isolators are used to disconnect the circuit from the source of power when the circuit is not in operation. This disconnection ensures the safety of the equipment that is connected to the circuit.
3. To provide easy maintenance:
Isolators are used to disconnect the circuit from the source of power when the circuit is not in operation. This disconnection allows for easy maintenance of the equipment that is connected to the circuit.
When to use an Isolator:
An isolator should be used when:
- The circuit needs to be disconnected from the source of power.
- The circuit needs to be disconnected for maintenance purposes.
- The circuit needs to be disconnected for safety reasons.
Importance of Isolators:
The importance of isolators in electrical circuits can be understood from the following points:
- Isolators provide safety to the workers who are working on the circuit.
- Isolators provide safety to the equipment that is connected to the circuit.
- Isolators allow for easy maintenance of the equipment that is connected to the circuit.
- Isolators help in preventing accidents that can occur due to electrical faults.
Answer to the given question:
The correct answer to the given question is option 'C'. Isolators are used for disconnecting a circuit when the line carries no current. This is because the isolator is a switching device that disconnects the circuit from the source of power when the circuit is not in operation. Therefore, the circuit should not be carrying any current when the isolator is used to disconnect the circuit from the source of power.
Definition of Isolators:
Isolators are switching devices that are used to disconnect a circuit from the source of power, and this disconnection is done when the circuit is not in operation.
Uses of Isolators:
Isolators are used in electrical circuits for various reasons. Some of the significant reasons are:
1. To provide safety to the workers:
Isolators are used to disconnect the circuit when the circuit is not in operation. This disconnection ensures the safety of the workers who are working on the circuit.
2. To provide safety to the equipment:
Isolators are used to disconnect the circuit from the source of power when the circuit is not in operation. This disconnection ensures the safety of the equipment that is connected to the circuit.
3. To provide easy maintenance:
Isolators are used to disconnect the circuit from the source of power when the circuit is not in operation. This disconnection allows for easy maintenance of the equipment that is connected to the circuit.
When to use an Isolator:
An isolator should be used when:
- The circuit needs to be disconnected from the source of power.
- The circuit needs to be disconnected for maintenance purposes.
- The circuit needs to be disconnected for safety reasons.
Importance of Isolators:
The importance of isolators in electrical circuits can be understood from the following points:
- Isolators provide safety to the workers who are working on the circuit.
- Isolators provide safety to the equipment that is connected to the circuit.
- Isolators allow for easy maintenance of the equipment that is connected to the circuit.
- Isolators help in preventing accidents that can occur due to electrical faults.
Answer to the given question:
The correct answer to the given question is option 'C'. Isolators are used for disconnecting a circuit when the line carries no current. This is because the isolator is a switching device that disconnects the circuit from the source of power when the circuit is not in operation. Therefore, the circuit should not be carrying any current when the isolator is used to disconnect the circuit from the source of power.
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