plzzzzzzzzz plzz send me the papers of JSPL WRITTEN TEST..SO that i can prepare for the test in electrical engg..749
tate and explain super position theorem2 2134
How we check vector group for a Dyn1 transformer?6 17880
sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me
from which subjects most of the technical que will b asked for hpcl(electrical).pls help me854
Generally in AC we consider voltage, frequency and phase sequence for parallel operation ... Can we parallel two DC battery chargers? If yes, then what precaution to be taken when we parallel two DC power?5 4117
sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?801
Ohm's law applicable for semi-conductors?4 7094
60 watts bulb and resistor home heater is connected in series and 230v is given to the circuit. The heater is giving some amount of heat. If instant of 60 watts bulb replace 100 watts bulb what will be the output of the heater?2 2953
can anybody sent me power grid questions. what subject should i prefer for preparation?879
different between highvoltage & lowvoltage source5 4072
If not into production, how far did you follow the design and why did not you see it into production?
What happens if i apply 500V to 440V rotary Switch ?
I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)
Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?
HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS
WHICH SIZE A.B.CABLE IS USED FOR 11KV.
why ct ,cvt should be stored in a vertical position?
What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas
Why does the radius of armature is less than the radius of pole shoe?
how to calculation increase power factor for single phase
An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another
How to do stting of vl250 siemens MCCB
why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
what is the difference between capacitive and resistive voltage divider?