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Will the tverter 220v inverter igbt drive give nuisancs tripping on an 100amp 30ma rccd?
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100amp breaker is 100amp on both phases or one phase?
A two pole breaker protects both L1 and L2 legs. An over current on either leg will trip the breaker.
What kva in 240volt 100amp supply?
The formula you are looking for is volts x amps divided by 1000.
How many single phase can you run on a 100amp 3 phase?
You can divide a three phase service into (3) single phase circuits providing you have a 4th neutral wire.
How many 100amp hour batteries do you need to connect to a 240v inverter to produce the same output as a 5kva generator for a period of 2 hours?
I am assuming that your batteries are 12V, also that your (12V - 240V) inverter is rated for 5KW output and it is about 95% efficient. Most big inverters are between 85% - 97%. 5KW from a 12V battery would mean a current draw of about 416A, but since the inverter is only 95% efficient the actual current would be closer to 438A. If you draw 438A for two hours, that's 876AH. Theoretically then, you would need 9 100AH batteries. The problem is that at very high current draw, all batteries AH capacity is less than the rating. You only get the whole 100AH if the current draw is 10A (1/10th the AH rating) or less. Because of that, you would probably need 10 to 12 batteries. If you used 10 batteries, each would source about 44A during full load. You would have to use very large bus bars to equalize the current draw from battery to battery. If the interconnects are too small, the batteries closer to the inverter would be forced to supply more than their equal share of the total current draw, and the ones further away less. It's generally problematic to parallel large numbers of batteries in this way. Don't even consider it unless the batteries are identical (same manufacturer, same part number, same age, same date code). The problem gets even worse when you try to recharge the pack. Suppose you pump 50A of charging current into 10 batteries. Is each battery receiving 5A? Or is one battery with a shorted cell drawing all 50 (and is about to explode...)? There's no way to tell. Even if all batteries were receiving equal charge, it would take your 50A charger almost 40 hours to recharge 10 - 100AH batteries. Ouch. Large industrial UPS systems get around this by using huge 2V cells in series. You can buy 6 - 2V, 1000AH cells, connect them in series to form a 12V, 1000AH battery and avoid all the hassles of parallelling 12V, 100AH batteries. They are not cheap, though. If you go to a battery manufacturer's website, they publish graphs for their batteries that show AH derating versus current draw. All this assumes, of course, that your load is really 5KW. If you are running a smaller load, then obviously your battery count would go down. Finally, we are talking extremely large current and power levels here. If you are not fully qualified to understand and design high current wiring systems, don't try this! 400A of current through a bad connection can do serious damage! Unless you enjoy being sprayed with molten metal from a disintegrating connection, know what you're doing or get a qualified individual to help with/inspect your work. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any workANDalways use an electricians test meter having metal-tipped probes(not a simple proximity voltage indicator)to insure the circuit is, in fact, de-energized.
Why ngt or ngr used in transformer?
Criteria-in order to protect the stator core from damage during internal earth fault it is necessary to limit the stator earth fault current al low as possible.may be upto 10amp for generator. Basis for selection of ngtr- if generator is connected to the system through generator transformer then generator can be treated as an isolated system which is not influenced by the distribution earthing system. In this case you can select earth fault current as low as possible, but if we use ngr then in order to limit the low earth fault current size of the ngr will be increased.due to big size of ngr we required more space & also its too costly. V = ir means if v constant i is inversely proportional to r exp:-to limit 10amp current , v =11kv/root 3 r = 11/root 3/10*1000=635.10 ohm ( very high value) for overcome on this, general practice to use a ngtr so that we can limit low earth current without any extra cost. Exp:- ngtr 11/240v to limit 10amp current current reflect on secondary side of ngtr will be = (11000/root 3/240)*10=264.6 amp. Resistor value on secondary side r =240/264.6 =0.9 ohm ( approximately) which is much lower than 635.10 ohm. Basis for selection of ngr- if generator is directly connected to the system then we can not limit the earth fault current up to 10 amp. We have to select the earth fault current value above the residual capacitive charging current of system.also we need to check the possibility of relay setting operation with ct ratio. For exmp- if ct ratio is 2000/1amp & earth fault limit current is 100amp relay selected with 10 % setting. Then that relay will see only 200amp earth fault current it will not see 100amp current. Also we can not keep generator solidly grounded because of high earth fault current stator can damage same will happen with ht motor if it is connected to this system. So for this case we need to select the ngr with proper earth fault current
How many 100amp hour batteries do you need to connect to a 240v inverter to produce the same output as a 5?
what do you mean by 5? an inverter just steps a voltage up from a lower voltage( i assume you are talking about a 12v to 240v inverter) 1:20 ratio. so with 100Ah at 12v you should get 240v at 5amps for 1 hour more batteries in parallel will increase this figure.
What is the maxi fuse resistance?
100amp
100amp breaker is 100amp on both phases or one phase?
A two pole breaker protects both L1 and L2 legs. An over current on either leg will trip the breaker.
What kva in 240volt 100amp supply?
The formula you are looking for is volts x amps divided by 1000.
What size wire do you need for a 100amp braker?
Service entrance wire should be AWG #3 copper.
BMW 318i 1991 E30 4dr can anyone tell me what amp fuse is required for fuse 17 power windows the car has no sunroof?
100amp on a RCD
How many single phase can you run on a 100amp 3 phase?
You can divide a three phase service into (3) single phase circuits providing you have a 4th neutral wire.
100amp fuse blows when turning the car over after the fuel pump changed?
Recheck the wiring around the fuel pump, or check your polarities on the battery. Something is shorting out!
Can you use a 600v fuse in a 120v circut?
Yes, as long as the amp rating is the same. Examples, 600v 100amp fuse can be used in a 120v 100 amp's location.
What size copper wire to use for a 100amp single phase three meter service feed from the riser?
A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps.
What can I use in place of 100amp fuse?
Another 10 amp fuse. If you use anything larger, you can fry your equipment, cause a fire, and so on. If this fuse is blowing all the time, there is a short in the component or wire.
What is the problem in a 91 celica if the park lamps dash lamps ain't comin on or even the acc or on doesnt work when the key is turned?
the answer is if that happens u can check the 100amp (blue) alternator fuse next to the battery...
