HOW MUCH KVA DG SET REQUIRED for charging 12v 4000 ah battery?
Answer Posted / k.prakashchandra
Charging current required is 10% of AH.So 12 x 400 watts
minimum has to be the capacity of the DG set i.e. minimum 5 KVA
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What is the dc grounding system and what is diff between AC/DC grounding system?
What are the material used for resistor?
what is PWM in IGBT and how it works for drive.?
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
what is circuit breaker in transfomer and where it used
what is earth resistance? how to measured? and give values at power station and mcc area?
How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?
is there any phase difference occurs while primary and secondary side mutual induction occurs?
What happens if i apply 500V to 440V rotary Switch ?
How earthing of switchgear system to be done.
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
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?
how the speed of the gets motor regulated. does it draw the same current on the all speed level.
what is the requirement regarding earthing of Single conductor with AWA
What is the slip speed?