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What are the effects of adding a zero to a system?
whit is 33kv power 300*300 cable full current with formula
What is the difference between grid and off- grid system??
what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.
why we testing the core balance of the transformer before comissioning?
Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com
How to know the Max. current caring capacity of the cable by its size ?
When will you multiply and devide with derating factors to the actual value while sizing the cable?
How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.
What is the magnetic field (coil DC ) of Turbo Expander?
what is the difference between electrical and electronic choke?
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.
3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.
we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer
A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?
