Recent questions tagged fault

1 answer 29 views

If the fault current is 6000 A, the relay plug setting is 150% and the CT ratio is 400/5, the plug setting multiplier will be

asked May 8, 2018 in Switchgear And Protection by Shimroz123
1 answer 43 views

If the % reactance upto the fault point is 20%, then the short circuit current will be

asked May 8, 2018 in Switchgear And Protection by Shimroz123
1 answer 30 views

If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded transformer, then  (A) zero sequence currents are present on both sides of the transformer  (B) zero sequence currents are absent on both sides of the transformer  (C) zero sequence currents are present on the secondary side but not on the primary side  (D) zero sequence currents are present on the primary side but not on the secondary side

asked Apr 29, 2018 in Power system by Shimroz123
1 answer 19 views

If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400:5, the plug setting multiplier will be

asked Apr 29, 2018 in Power system by Shimroz123
1 answer 21 views

A shunt fault is characterized by (A) Increase in current, frequency and pf (B) Increase in current, reduction in frequency and pf (C) Increase in current and frequency, reduction in pf (D) Decrease in current and frequency

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 36 views

With fault clearing time, the transient stability of a power system

asked Apr 27, 2018 in Switchgear And Protection by Shimroz123
1 answer 87 views

To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?

asked Apr 27, 2018 in Switchgear And Protection by Shimroz123
1 answer 22 views

In which fault the maximum short circuit current occurs?

asked Mar 19, 2018 in Switchgear And Protection by Shimroz123
1 answer 22 views

Which is the most common type of fault?

asked Mar 19, 2018 in Switchgear And Protection by Shimroz123
To see more, click for the full list of questions or popular tags.

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,514 questions

7,113 answers

135 comments

3,090 users

...