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a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn
ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????
why we use single core 630mm2 cable for transformer secondary side
Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com
DCS marshaling Cabinet Power supply can be replace during plant running time? Answer Yes it is possible. I am talking about the controller and cards power supply modules. They are always redundant and connected through diode so that if one power supply fails the other can take the charge immediately.so it is possible to replace one of them in running plant if the other one is healthy. MY question is how switching done.
Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
what is the price of a cubic meter of concrete on international market?
calculate the expantion of steel bar 2,5 long if its temperature rises from 20 degrees to 250 degrees and its co effient of expantion is 0,000011 mm degrees
Different types of relay fault which phase sequence??
If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.
how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps
how to setting Load amps tripping time and extra settings for load Transformer protection relay with RMU panel using C&S model relay..?
Is it a good sign when thick smoke comes out of a Oil vapor extraction fan of a steam turbine oil sump? What does it indicates?
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
