| A CT transmitter, like M-System Model CT, receives
0-1Aac or 0-5Aac current signal from the primary current transformer
(CT) and converts it to the standard DC output signal. Unplugging
the transmitter from its socket, while it is receiving the current
from CT, will open the CT secondary circuit: This induces a surge
voltage at CT, burning the CT coil. M-System Model CTM CT Protector
prevents the CT secondary circuit from becoming open and protects
CT, even when the transmitter is unplugged. |
 |
| Note: We do not provide a protector, like the CT
protector, with the socket of M-System Model PT transmitter which
receives the AC signal from the connected potential transformer (PT).
PT does not generate a damaging surge voltage even if the transmitter
is unplugged. Therefore, PT does not require a protector. |
|
What
does the CT protector (M-System model CTM) that is installed onto the socket
of the transmitter do? 
M-System
Model CTM CT protector prevents damaging the primary current transformer
(CT), when the CT transmitter is unplugged while CT is alive.