Meter Wiring Diagram For Ct Rated Meter

Here is a wiring diagram for the form 4s meter.

Meter wiring diagram for ct rated meter. Showing wiring from a current transformer in a cabinet to the test switch and to the meter. Ct rated meters are also typically demand meters as well. 10 pole test switch internal potential wiring of 13 14 15 jaw sockets. For the form 4s meter wiring diagram let s start at the bottom.

Rated 1200 amps or greater or any switchboard with an un metered switch. Watthour reactive ct rated meter sockets 13 pt. 6s wiring diagram 4 wire wye 3 ph 4 wire 2 pt 3 ct glems would like to thank and acknowledge the use of the following meter connection diagrams from dr. With and without ct s and pt s for wye delta and network circuits.

When ct s and pt s are used in a metering installation the installation is known as being transformer rated. The only difference is that it is larger. Ct current transformer wiring connections for commercial form 9s electric meter installation. Single meter sockets ct rated with test switch bypass provisions 68 69 meter socket enclosures combination.

One of the most requested items of information that we receive is for wiring diagrams for the meters we sell. Make note that this is the same type of service that you find on most homes. Form 5s meters are transformer rated meters that can be used in a variety of different service types. Form 4s meter wiring diagram.

Some people refer to the meters that use a ct pt combination or just ct s as a current transformer meter. Be aware that these are general diagrams using standard test switches which may not match some utility standards in their configuration and are for reference only. This is a transformer rated meter that would be used when the service is too large to put in a form 2s meter. Transformer rated meters are required when voltages and currents exceed the meter s direct connect capability a form designation tells us about the number or terminals their location and the internal meter wiring in ct and vt connections polarity must be observed for metering to be correct.

Notice that we are going to be metering a single phase three wire service. Meter 3 wire using ct s 3 wire using ct s 2 or 3 element meter. We have two phase wires and a neutral. Form 4s meters are used for single phase three wire services with two ct s.

To obtain this approval four copies of a one line diagram for the meter current transformer cabinet and disconnect switch sequence must be submitted to comed s system meter department located at 1919 swift dr oakbrook il 60521. This page contains circuit type and wiring diagrams for all the form s of meters sockets and pans.