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where we use 1 phase & 3 phase supply ?what is major advantage using 3 phase over than single phase ?
3 6566i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u
3 9276What is the operating range(tolerance) of voltage and frequency of grid supply in india?
BARC,
10 23000whenever any squirrel or a crow falls on the transformer input line then there is a big explosion and 440 volts of power is being discharged through the neutral line due to which appliances in off mode are also burned.we have earthing for the transformer as well as the bus bar chamber.why is it happening?
1 2918What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?
1991While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?
3580a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?
2 7397Post New Electrical Engineering Questions
Why derivative controller is not used in control systems?
What is A check, B check, C Check & D check for a diesel Generat
What is difference between mcb and mccb.
Readings of ER300P Trivector meter
What do you mean by distribution transformers?
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
What is the settings of distance protection relay in 400 kv line
what is the difference between megger and earth resister ??
what are the advantages disadvantages of connecting high voltage block( 1:1 transformers) transformers between the turbo generators and busbars.
i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....
what is the voltage rating of chiller unit sensors
in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?
What's mean HVF & HAF in Vacuum Circuit Breaker?
what is the function of capacitor duty contactor in an capacitor panel???
what is the difference between STAR and DELTA connection and application wise how it can be utilizedd
