This is used for just measuring the current...
for large currents in tramsmission lines(busbars) current Transformers are used.
No, each size service needs its own meter base.
A
The wire size in a meter stack is governed by the size of the first over current device.
The scale of each meter manufacturer will be different. You'll need to refer to the owners manual to determine the proper setting. Remember that an ammeter is used INLINE with the electrical device to determine current draw. Do NOT put the test leads of an ammeter across the two leads of the service voltage.
When I went to a 100 amp service I could not find a 100 amp. breaker in stock. I used a 60 amp. breaker and have never blown it. The 200 amp you are using can handle up to 200 amps, but if you use a smaller breaker it will only handle up to that amperage. The 200 amp is usally the total amperage of all the breakers comming out of the box. You will probably never come anywhere near using 200 amps at one time.
To measure very low amperage a milli amp meter would be used or the milli amp scale on a multi meter.
a meter for amps
Electrical current is measured with an "ammeter". (The unit of current is "ampere". Measure it with an 'ampere-meter' ==> 'amp-meter' ==> 'ammeter'.)
You can measure the electrical current with an amp meter. Amperage measures the current flow.
The maximum amperage capacity of a 400 amp meter main with two 200 amp disconnects is 400 amps.
The maximum amperage capacity of a 400 amp meter base with two 200 amp disconnects is 400 amps.
No, each size service needs its own meter base.
The purpose of a Milbank 400 amp meter main with two 200 amp disconnects is to measure and control the flow of electricity in a building. The meter main measures the amount of electricity being used, while the disconnects allow for the safe disconnection of power in case of emergencies or maintenance. This setup is commonly used in larger residential or commercial buildings to efficiently manage electrical distribution.
There is no volt meter or amp meter in a DC watt meter.
A 100 amp meter can measure a maximum current capacity of 100 amps.
A
The volt meter should work. The meter is connected across the supply where as the amp meter is connected in series with any load that it is metering. On larger installations to measure the amperage, a current transformer is connected around the conductor to be monitored. If a CT is used then the polarity has to be observed when connecting to an amp meter.