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Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control
2126Why, the starting current of 3 phase Induction Motor is 7 to 8 times its rated current?
L&T,
9 36714Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.
20381.protection used in transformer ? 2.Why breather called breather ? 3.Working of conservator tank.? 4.Speaker of parliament ?
4 11067Why CTs are connected in star on T/F delta connected winding side & in delta on T/F star connected winding side for T/F differential protection?
2 5486how to calculate cable size, olr rating, contactor rating and mccb rating,to below given details three phase motor 75 kw,415 v,.85 pf,50 hz?
5 73756Post New Electrical Engineering Questions
in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?
what is RFCT and Insulgard Relay & It's function?
How to decide DO set rating of Transformer?
why tertiary winding is used in transformer with diagram?
Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?
what is meant by the phrase 'static load' in case of shorting in a generator excitation system?
WHAT IS MEANT BY DERATING OF THYRISTOR?
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
What are the specifications for conducting earth leakage test as per IEC standard?
1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?
why the name trunking bus PT
What is the settings of distance protection relay in 400 kv line
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?
Dyn1 transformer vector group testing how to do
What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA
