WL Circuit Breaker
1/45
WL Selection and Application Guide • 2005
Circuit Breaker
Modified Differential Ground Fault Protection
using WL Circuit Breakers and extra iron-core CTs
1 Neutral Sensor for modified differential ground fault
for Frame Size II 1200:1 WLGMDGFCT2
for Frame Size III 1200:1 WLGMDGFCT3
2 Neutral Sensor for source ground return
for Frame Size II or III 1200:1 WLGNMDGCT23
NOTE: This scheme can not be used with guide frame
mounted metering CTs.
WL_SA_intro-sec1.qxd 2/7/05 1:26 PM Page 47
To Next Page
Loading...
