what is mean by harmonics?Type of harmonics?6 6299
Why electrons flow only one direction in semiconductors. why can not flow both directions1 2798
how can i apilly for electrical c licencese.sir,i completed B.Tech in electrical & electronics engineering in 201onot working any company1402
why ac ratings are in tons?2 3810
if a bird sits on the service wire it didn't get shock then why the human get shock when he touches it(assume that human is not on the ground and any object i.e. in space)?5 5293
why power factor is only cosine angle not sine angle?2 4460
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??1456
what is the difference b/w bus reactor and line reactor?1 15706
What is Scheme Test of High Voltage Switchgear. Which tests it includes.1824
How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.1 3100
how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???1566
Difference between copper earthing & aluminium earthing?2 4566
What is the formula to calculate the rating of power cable for three phase current.
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?
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 alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
Define what is the function of anti-pumping in circuit breaker?
How to know th details about an electrical Drawing ? Please mention the easy method.
where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz
how to calculate slip ring induction motor stator and rotor currents??
Why use the vcb at high transmission system ? Why can’t use acb?
I have a CT meter with ratio 60/5. The meter reading of previous month was 3290.49 and that of current month was 3797.26. How many chargeable units as per normal meter should be my reading.
how to calculate kvar in Akiva
What is inrush current? how can calculateit? what is the affect of it?
HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....
what is dry and wet frequency withstand voltage? why & where it is used??