Answer / raj

no...............

Answer / s.arul

this is my idea.
Bucholtz relay is a gas operated relay.
1. less amount of gas will come, the relay give the alarm
signal. 2. more amount of gas will come, the relay trip the
machine(so don"t use battery in bucholtz relay).

What is the minimum setting in REF relay because i am facing some problem whenever power resumes after power failure my transformer is tripping because of REF trip. I am using CSPC make numerical relay(DIP switches). Now setting is 15 percentage. What is the reason for this triping. I sm waiting for answer

2 Answers  

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Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault

0 Answers   MPSEB,

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1.what is electricity 2.what is electronice 3.how many modules 4.five electrical component with symbol 5.five electronice componene with symbol 6.how convert 220v.A/C to 24v/DC 7.220V.WAIRING DIAGRAM OF AMMETER/VOLTMETER/OHMMETEER

1 Answers   Hatsun,

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if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?

1 Answers  

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What is Form factor?

2 Answers   NTPC,

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what is the difference single phase and 3phase starter

1 Answers  

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List some examples of renewable energy?

0 Answers  

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When connecting a loaded powerplant to the Huge grid,what are the factors to be considered and how the VAR flow will affect the system?

1 Answers  

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What's mean HVF & HAF in Vacuum Circuit Breaker?

0 Answers   Gandhi Institute of Technology and Management (GITAM), Hyundai, Jayam Engineering Works,

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what is the difference between LT & HT Motors

11 Answers   L&T,

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What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????

6 Answers   Emerson,

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What is the technical difference between On delay timer and a Star delta timer?

0 Answers   Roche,

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