A device which can open and close an electrical circuit in a convenient way. It can be used under "no load" or "full load" condition but can not interrupts the fault current.
Monday, November 6, 2017
Fuse
A fuse is a short piece of wire or thin strip which melts when excessive amount of current passes through it sufficient time.
Circuit Breaker
A circuit breaker is an equipment that can open and close a circuit under all conditions(no load, full load, fault conditions)
Relay
A device which detects the fault and supplies the information to the breaker for circuit interruption.
Sunday, November 5, 2017
Methods of voltage control of any power system.
1. Excitation control
2. Using tap-changing transformer
3. Auto-transformer tap changing
4. Booster transformer
5. Induction regulators
6. By synchronous condenser.
2. Using tap-changing transformer
3. Auto-transformer tap changing
4. Booster transformer
5. Induction regulators
6. By synchronous condenser.
Tuesday, October 31, 2017
What is OPGW?
- OPGW stands for optical ground wire.
- Used in overhead power lines.
- Such cables combines the functions of grounding and communications.
Subscribe to:
Posts (Atom)