what are protective device needed to power a 360W ,50hz,240v,single phase,0.65 pf universal motor
L&T,
1 3495IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.
1852How much earthing require for h.t.22 k.v. cable in coming side & out going & 22 lighting arrest or,22 k.v.D.o. & A.B. switch.
1 2311What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.
1493why in a swquence network representation, the negetive sequence generated voltage is taken as zero?
1497why battery dc voltage become Half when we check with respect to ground for example 120volts + and - terminals and when we check + terminal with Earth thats 60volts why 60volts we can not ground the battery.
GE,
6 16426Post New Electrical Engineering Questions
DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?
How can find thermal state value in relay for calculate thermal overload.
Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com
Meaning of ingrace protection for motor.for ex IPXY
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why there using acb enclosure in big buildings
relation between power station capacity and voltage level?
calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.
what percent do you derate your copper wire when you change from copper buss to copper wire
Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?
What is the high series capacitance winding on high voltage power transformer ?
and gate circuit diagram,amplifier circuit diagram
1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.
what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?
1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops
