Switchgear and Cable Diagnostic Monitor, SCM
The SCM is a microprocessor-based device that continuously monitors the insulation system for partial discharge activity as well as other parameters such as temperature and humidity. Application for the SCM includes switchgear, bus duct and cable systems.
The basic standalone unit shown in the picture consists of three modules (from the left to the right):
- Power Supply
- Main CPU module
- A 15-channel partial discharge module
The basic unit may be extended with additional modules allowing for more economical or accurate way of monitoring multiple objects.
The SCM can have up to six PD modules allowing monitoring up to 90 channels (within allowable signal cable distance) with one monitor. These multiple channels can be of mixed signals, such as RFCTs on cable shield grounds and coupling capacitors located in switchgear.
Product Link:
Technical Paper
Application Note
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