Ct Meter Wiring Diagram
In addition to installing cts with the correct mechanical orientation electrical polarity as indicated by their white and black wires must also be correct.
Ct meter wiring diagram. But remember that ct meters are used with cts. One of the most requested items of information that we receive is for wiring diagrams for the meters we sell. The form 9s meter is one of the most commonly used meter forms. Generally the utility meter or the circuit breaker.
3333 phase meter with connection via ct phase meter with connection via ct pulse or modbus rs485 outputpulse or modbus rs485 output 55 55 67 67 67. Showing wiring from a current transformer in a cabinet to the test switch and to the meter. S0 as you begin to study the wiring diagram i want to make note of a few things. This means that the current coils of the meter are capable of handling 20 amps.
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 panel boards. After watching this video you can make the connection of electricity meter at home. In this video i try to explain the concept of single phase electrical meter or single phase energy 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.
What are the characteristics of a ct meter. 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. Note the voltage inputs to the meter must be externally fused via a slyde lock fuse and terminal 11 is the neutral tying down the three voltages 2 the ct cables should be kept as short as possible use 2 5mm cable to maintain accuracy 3 cts match the ratio of the meter being fitted eg 200 5 amp meter 200 amp cts. Find the arrow or label this side towards source on the ct and install the ct with the label or arrow facing toward the current source.
The characteristics of a ct meter include its ratings. With and without ct s and pt s for wye delta and network circuits. First is that the colors that i chose were chosen at random. Ct meters now are generally rated at 20 amps.
That is because there is no universally accepted color code. Ct current transformer wiring connections for commercial form 9s electric meter installation. About the form 9s meter wiring diagram.