3 Phase Ct Meter Wiring Diagrams
A 240 volt meter is used for 277 480v service.
3 phase ct meter wiring diagrams. 3 wire network 3 wire 4 wire delta or 4 wire wye. The company s nominal secondary service voltages are 120 volts single phase 120 240 volts 3 wire single phase 240 volts 3 phase 3 wire 120 240 3 phase 4 wire 120 208 3 phase 4 wire 277 480 volts 3 phase 4 wire. Current transformer installations single ø 2 wire with ct pt single ø 3 wire single ø 3wire or network with 2 wire ct s 3ø 3 wire with ct s pt s. 120 208v or 277 480v or meter rated 120 or 240v using line to ground voltage.
Polyphase circuits a polyphase 3 phase circuit may be. 3 phase kwh meter wiring and it s connection diagram as you know that we use two types of electrical appliances regarding it s rated voltage in which some are for single phase and some are required 3 phase just like this we use two types of kwh meter in which one for single phase and 2nd kwh meter 3 phase. 5s wiring diagram 3 wire delta 3 ph 3 wire 2 pt 2 ct glems would like to thank and acknowledge the use of the following meter connection diagrams from dr. In the above diagram i shown three ammeters current transformers in the above ct wiring diagram i common a wire of all ct s my means that i connect ct one connection with one another.
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. 3 phase 4 wire energy meter installation of 3 phase kwh energy meter. 3 phase supply standard connection for 230 400v 4 wire ct meter installation and test block pdf 0 27 mb 3 phase supply with 1 controlled phase pdf 0 21 mb 3 phase supply with 2 24 hour phases and one controller phase for distributed generation pdf 0 11 mb. Service voltages higher than 480 volts are available only by negotiation with the company.
Showing wiring from a current transformer in a cabinet to the test switch and to the meter. Today we are going to show that how to wire and install a 3 phase kwh energy meter three phase or poly phase 3 phase 4 wire digital or analog energy meter from the supply to the main distribution board. I can also do it without connection with one anther but the main reason behind this is that in real life we do our wiring like above diagram in our main power. Ct current transformer wiring connections for commercial form 9s electric meter installation.