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GROUND-FAULT-CT SELECTION FLOWCHART...
EARTH-FAULT-CT SELECTION FLOWCHART...
An ideal window-type current transformer responds only to the sum of the currents flowing through its window...
HAMMOND CT’s...
TRAILING CABLE TYPES TECHNICAL INFORMATION...
POLYCAST 200:5 CT TEST TECHNICAL INFORMATION...
A window-type current transformer is also referred to as a core-balance or flux-balance transformer...
The HGF5 can be used as a ground-fault-current sensor with Startco MPS, MPU-32, MPU-16A, FPU-16, SE-701, and SE-330 protective relays...
A ground fault on a grounded system can be detected using a current-sensitive groundfault monitor...
A zero-sequence CT is optimized by using a symmetrical core and windings that are evenly spaced around the core. The symmetry allows the CT to operate in the presence of high load currents...
Correct operation of MPS and FPS relays depends on accurate polarity. Markings on current transformers (CT) and potential transformers (PT) have been occasionally misapplied from the factory...