Meter Wiring Diagram For Ct Rated 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.
Meter wiring diagram for ct rated meter. Engineering data meter socket circuit diagrams 174 data subject to change without notice. Meter 3 wire using ct s 3 wire using ct s 2 or 3 element meter. When ct s and pt s are used in a metering installation the installation is known as being transformer rated. Here is a wiring diagram for the form 4s meter.
Make note that this is the same type of service that you find on most homes. Ct rated meters are also typically demand meters as well. Eaton s b line business. Form 4s meters are used for single phase three wire services with two ct s.
Rated 1200 amps or greater or any switchboard with an un metered switch. The only difference is that it is larger. Form 5s meters are transformer rated meters that can be used in a variety of different service types. Notice that we are going to be metering a single phase three wire service.
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. Form 4s meter wiring diagram. Showing wiring from a current transformer in a cabinet to the test switch and to the meter. This page contains circuit type and wiring diagrams for all the form s of meters sockets and pans.
We have two phase wires and a neutral. One of the most requested items of information that we receive is for wiring diagrams for the meters we sell. Single meter sockets ct rated with test switch bypass provisions 68 69 meter socket enclosures combination. 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.
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. With and without ct s and pt s for wye delta and network circuits. Watthour reactive ct rated meter sockets 13 pt.
Ct current transformer wiring connections for commercial form 9s electric meter installation. 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.