What is meant by Guard relay ?

Answer Posted / abdul rehman

Used in the linefinder circuit to make sure that only one
linefinder can be connected to any line circuit when two or
more line relays are operated simultaneously

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the feedback in the control system?

630


As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1385


how calculate gd2 of ht motors

1822


Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

625


What is the use of Surge Capacitor in LAVT?

12889






can any one know is sbi interview based on merit or based on roll number

1497


As an electrical engineer what are the responsibilities which i can hold in TCS?

1702


by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.

1517


please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1508


details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?

1439


i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

1589


What is the working mechanism of OLTC in Power Transformers????

3884


If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1431


Igfet is a

1192


Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???

1545