⚡Electrical Engineering Q&A⚡

🔍

🖊️Ask a Question

⚡Electrical Engineering Q&A⚡

What are the different relays that employed for protection of apparatus and transmission lines?

by EE Q&A asked Jun 12 2 views

What are the different relays that employed for protection of apparatus and transmission lines?

Please log in or register to answer this question.

1 Answer

by EE Q&A answered Jun 12

The relays that are usually employed for protection of transmission lines include: Over current relay, Directional relay, Distance relay, Under Voltage relay, Underfrequency relay Thermal relay, Differential relay, Phase sequence relays, pilot relays

Next Question ⇨⇦ Previous Question

Related questions

by EE Q&A asked May 31 4 views

What is the maximum voltage limit for the underground lines that are used for power transmission? a. 120 W b. 250 W C. 66 kV d. 188 kV

What is the maximum voltage limit for the underground lines that are used for power transmission? a. 120 W b. 250 W C. 66 kV d. 188 kV
Last Answer : C. 66 kV ...

△ 0 like ▽ 0 dislike

1 answer

by EE Q&A asked Jun 12 2 views

What are different types of principles of operation of electro-mechanical relays?

What are different types of principles of operation of electro-mechanical relays?
Last Answer : Eletro-mechanical relays operate by two principles. Electro-magnetic attraction and electro-magnetic induction. In electromagnetic attraction relay plunger is drawn to the solenoid or an armature ... operation is similar to induction motor. Torque is developed by electromagnetic induction principle...

△ 0 like ▽ 0 dislike

1 answer

by EE Q&A asked Jun 14 3 views

Define flip flop. What are the different types of flip flop?

Define flip flop. What are the different types of flip flop?
Last Answer : The designing of the flip flop circuit can be done by using logic gates such as two NAND and NOR gates. Each flip flop consists of two inputs and two outputs, namely set and reset, Q and Q'. This kind of flip flop ... SR latch. TYPES:  RS flip-flop  JK flip-flop  D flip-flop  T flip-flop...

△ 0 like ▽ 0 dislike

1 answer

by latheesha asked May 3 21 views

consider a circuit with for 10 ohm resistors connected in parallel and the current flowing through the circuit is 5 amps what will be the current if the above 4 registers are connected in parallel

Last Answer : 1/R=1/R1+1/R2+1/R3+1/R4 =1/10+1/10+1/10+1/10 =4/10 R =0.4 ohms...

△ 0 like ▽ 0 dislike

1 answer

by EE Q&A asked Jun 14 2 views

What is the effect of capacitance of a PN junction diode as forward and reverse bias are applied?

What is the effect of capacitance of a PN junction diode as forward and reverse bias are applied?
Last Answer : In a p-n junction diode, two types of capacitance take place. They are,  Transition capacitance (CT)  Diffusion capacitance (CD) 1. Transition capacitance (CT)  We ... in number of minority carriers stored outside the depletion region dV = Change in voltage applied across diode ...

△ 0 like ▽ 0 dislike

1 answer

Aerospace-Engineering Animals Aptitude Architect Astronomer Baker Biology Businessman Chef Chemical-Engineering Civil-Engineering Dentist Doctor Electrical-Engineering Electrician Engineer Environment Explain-Like-Im-Five Factory-Worker Farmer Firefighter Florist Gardener Gardening-Plants-Agriculture Hairdresser Health High-School JEE Kindergarten Lecturer Librarian Life-Pro-Tips Mechanic Mechanical-Engineering Middle-School NEET Nursery-School Pharmacist Pilot Primary-School Receptionist Scientist Tailor MCQs Ask Public

...