L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.80
Why we use d.c. meger in a.c. induction motor?1 153
75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?2159
A 230 v dc series motor is connected to 230 V ac supply, then1 89
What is various types of electrical formula?1 86
how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.
Is vtg is controlled by the resistor? if else how much?
Load break swicth maintenance procedure.
what is the method of earthing of a transformer using electrodes?
how to select electronic timer(Star-Delta) setting for diff. rating motors
What is the latest generation of circuit breakers called?
What is the current carrying capacity of 35sq.mm flexible cable?
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?
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What are m circles?
An automatic water heater is an example of which type of control system?
placement paper samples of mspl company
i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...
Is there any question in the name of Static Switch in UPS??