find P1, P2, P3,P4 R1 R2 1kn 1000 E2 R3 5000 E1 7V 12V R4 5000

Q: 10. Which of the following is considered Medium Voltage a. 13.8 kv b. 69 kv c 110 kv d. 230 kv 10.…

A: Since you have posted the multiple questions so we are supposed to answer 1st 3 subparts. In the…

Q: Describing facilities 1 Match these facilities to the correct symbol. 1 restaurant 2 stairs 3…

A: Restaurant -l Stairs-g Telephones-b Car park-n Elevator-k Toilets-m Meeting rooms-j Coffee bar -a…

Q: what would be the minimum size feeder conductor THHW 75 degrees for four 30- amp motor generator arc…

A: To find minimum size feeder conductor THHW 75 degrees motor generator arc welders = 4 numbers  , 30…

Q: If the resistor R1 and R2 terminals are connected across each other. If the Rory is 10 and R1 is…

A: We need to find out value of R1

Q: What is low power factor wattmeter and what is its use?

A: The instrument which measures the very low factor is known as the low power factor wattmeter (LPFW).…

Fault Analysis

In an electrical engineering system, a fault is an abnormal electric current flowing through the system, and fault analysis is the study of these faults. For instance, a short-circuit is a fault where the live wire touches the ground or neutral wire. If a circuit is interrupted by a failure of a current-carrying wire then an open circuit fault occurs. The open-circuit faults are also called series faults. One or more phases or ground may be involved in a three-phase fault or may occur only between two phases. Current flows into the earth in case of a ground fault or earth fault. For most situations, the prospective short circuit current of a fault that is predictable can be calculated. To limit the loss of service because of a failure, the protective devices can detect fault conditions and operate circuit breakers and also other devices. All phases equally can be affected in a poly-phase system which is known as symmetric electrical fault. The asymmetric fault becomes more complicated to analyze if only some phases are affected. By using methods such as symmetrical components, the power system analysis of these types of faults is often simplified. The main objective of power system protection is to design, detect, and interrupt power system faults.