GE Industrial Solutions Entellisys 4.0 System User Manual - Manual (Page 91)

Single Point Relay protection 91
5
5.2.9.3 Setup
The HRGF Location functionality is an extension to the HRGF Detection relay. Since the location
process starts after a fault has been detected by HRGF Detection, the configuration parameters
specified for the HRGF Detection functionality must be set for the feature to work.
The High Resistance Detection and Location Relays are only available on breakers which have a
ground CT installed by the factory. To navigate to the setup screen login as an administrator to
the HMI and open the Advanced Protection (Main Menu, User Settings)
Figure 5-13 High Resistance GF Location settings
Select Breaker With Ground CT - Lists only breakers with ground CT’s assigned to them from
the factory
HRGF Location Function: Lists the available location relays - if optioned. Typically will reflect the
number of mains in the system equipped with HR equipment.
Detection Function: See Setup on page 86
Location Relay Group box
Contactor Frequency: (0.5 - 2 Hz or 30 - 120 pulses per minute) Frequency at which the
contactor will pulse. User can adjust depending on the sensitivity of hand held amp meters
used to locate the fault downstream of Entellisys.