Iwatsu SS-663, Instruction Manual

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Chapter 2 Names and Functions of Parts
14
2.3 Rogowski Coil Sensor
No. Name Description
 Rogowski Coil
A coil for detecting the current in conductors to be
measured. Forms a closed loop during measurement.
Covered with an insulating outer sheath for heat resistance
and insulation.

Joint box
The sensor cable  is secured to one end so that the
Rogowski Coil forms a closed loop. There is a joint hole 
to secure the other end of the coil.
 Joint hole A part of the joint box  and has a hole to insert the
Rogowski Coil. The one end of the coil  can be removed
from this hole by hand.
 Sensor cable
A coaxial cable used to input the electromotive force
(differential value of the current) that is generated in the
Rogowski Coil to the main unit.
Current direction mark
②
①
③
④