Why the Motor takes High Current in Starting time?
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If there is major % of Voltage harmonics in the system, how can it be control or reduced?
please send me previous year questions of jspl through which i could prepare myself for the test.
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?
working principle of AC Servo Motor with its construction
Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity
3phase motor can be used as a Prime mover for alternator.
How grounding is different than earthings?
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 subtransient , transient and steady stateac components
what is the responsibility of C license holder in industry?
How a band pass filter is constructed?
WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
How will you define capacitance?
What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP