Answer / runofnazeer

power plants types 2 using tur bine capacity 3 types
generator

can we synchronize star system generators with delta system transmission line ? and how ?

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The synchronous speed of a motor with 6 poles and operating at 50 Hz frequency is ___.

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To have variable speeds we use a. Induction motor b. Traction motor c. Shunt motor

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for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

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What about Reactive power.and role of that one?

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What is mean 2XWY

0 Answers   Wilo,

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what is the isolation transformer. what is the isolator?

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in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?

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on 22.03.2015 at 17:15hrs Y phase 66kV class Power Trf-2 Current transformer has flashed over and oil came out. The failed CT has been replaced on 24.03.2015 at 13:15hrs and the Trf has been charged in presence of RT Hassan after conducting the pre-commissioning tests. On the same day at 17:00hrs the commissioned CT has again flashed over and immediately the Trf  has been isolated from power supply. It is confirmed the secondary is not opened and checked the earth integrity and is found ok. Here what would be the reason for the CT failure? 

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What are the disadvantages of autotransformer?

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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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What are the Safety Steps While Inspection the LT Panel.  

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