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Corona occurs between two transmission wires when they (a) are closely-spaced (b) are widely-spaced (c) have high potential difference (d) carry d.c. power
2 5698Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?
1503what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth
1385Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings
2085How many battery required for an 3kva online ups with 3 hrs back up with usage of 3 fans,3tube lights
1 2587sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
1479Post New Electrical Engineering Questions
pls tell me function of closing coil of A.C.B.
Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.
If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?
What is an alternator impedance value?
what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct
which protection function should measure RMS value of current&DFT value of current?
What is the function of capacitor in electrical circuits?
Define gain margin?
What will happen if the d.c. Shunt motor opened accidentally running on no-load has its shunt field winding?
how indusrial diesel generator work
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?
Define phase lag and phase lead?
What is the capacity of the Fastners 12mm?
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
What is the meaning of HT Trivector Meter ?
