Schematics - GE ZTS Series Operation And Maintenance

Relay/Transformer (R/T Box)
Standard Transition R/T Box Schematic
20 21 22
XN2
XN1
24V 10V 11V 10V
CCN
Delayed Transition R/T Box Schematic
21
20
XN1
XN2
24V 10V 11V 10V
CCEO CCN
GE Zenith Controls
30 31
XE1
24V 10V 11V
CCE
22 30
XE1
24V
10V
11V
CCNO
CCE
ZTS / ZTSD Operation and Maintenance Manual (71R-3000)
(cont'd)
32
XN1 - SOURCE 1 CONTROL TRANSFORMER
XN2 - SOURCE 1 3 PHASE SENSING TRANSFORMER
XE1 - SOURCE 2 CONTROL TRANSFORMER
XE2
XE2 - SOURCE 2 3 PHASE SENSING TRANSFORMER
10V
SOURCE 2 24V OUTPUT
900
(18)
800 SOURCE 1 24V OUTPUT
907
3 PHASE SOURCE 2 SENSING
(BLANK)
(BLANK)
GND GROUND
901 CCE - COIL CONTROL RELAY (SOURCE 2)
CCN - COIL CONTROL RELAY (SOURCE 1)
801
902 COMMON
903
SINGLE PHASE SOURCE 2 SENSING
904
803
804
3-PHASE SOURCE 1 SENSING
807
806
SOURCE 1 CONTROL POWER
805
906
SOURCE 2 CONTROL POWER
905
(1)
J5
31 32
XN1 - SOURCE1 CONTROL TRANSFORMER
XN2 - SOURCE1 3 PHASE SENSING TRANSFORMER
XE1 - SOURCE 2 CONTROL TRANSFORMER
XE2
XE2 - SOURCE 2 3 PHASE SENSING TRANSFORMER
10V
900
SOURCE 2 24V OUTPUT
(18)
800
SOURCE 1 24V OUTPUT
907
3 PHASE SOURCE 2 SENSING
808
CCEO - COIL CONTROL RELAY (OPEN SOURCE 2)
908
CCNO - COIL CONTROL RELAY (OPEN SOURCE 1)
GND
GROUND
901
CCE - COIL CONTROL RELAY (SOURCE 2)
801
CCN - COIL CONTROL RELAY (SOURCE 1)
902
COMMON
903
SINGLE PHASE SOURCE 2 SENSING
904
803
804
3-PHASE SOURCE 1 SENSING
807
806
SOURCE 1 CONTROL POWER
805
906
SOURCE 2 CONTROL POWER
905
(1)
J5
Figure 15
Figure 16
23