Interested to Buy Any Domain ? << Click Here >> for more details...
What is the differance between negative dc voltage and
positive dc voltage because some circuit uses -24,-5,-12,-
15,volt dc supply
- 10 Answers
- 37201 Views
- eLab, Hero Honda, NTPC, Suzlon, Teradyne, I also Faced
- E-Mail Answers
Answer Posted / answr
These +ve and -ve supply are much more Important in power plants and oil and gas refinery.. This is because the energy level of both. +ve supply have much more energy than -ve supply. So normaly we grounded the +ve supply and -ve supply is used for supply. When we connect the +ve supply to supply this will cause produce some fire when some short connection occur in the equipments. So these fire will cause to explosion of oil and gas plants. For this reason we connect the -ve supply to the equipments.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what r PID controllers?why they r used?what is there purpose?plz Explain in detail
what is droop control?
what is the significance of tan&delta and how it performed in power transformer
write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.
I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF
Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega
which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter
please send me latest & previous years question papers for IOCL Technical level questions
electromechanical relay type identification example : type=tjmh t-stants for j- m- h-
what type questions asked in hp cl
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
why are distributed windings generally used in alternators?
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
can mini-curcuit supply MIL-tested transformer !
