| General > General Technical Chat |
| Electric power systems: secondary networks |
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| SG-1:
The relay that controls the breaker requires an external load to be present before closing. On the CMD Network Protector there was an option that could be purchased called a phantom load. The relay that controls the breaker would see an external load when none actually existed. Since the utility owns the protectors, that option is most likely off the table. We would test the protector by attaching an external load, like a light bulb & make sure the protector would close. The network protector product line was Westinghouse's oldest product line when sold to Eaton. It has been in production since the late 1800s. |
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