GE Entelli-Switch 250 User Manual download pdf (Page 28)

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28 GE Zenith Controls

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Entelli-Switch 250 Operation and Maintenance Manual (71R-2000)

Relay/Transformer (R/T Box)

(cont’d)

20

21 22

31

30

GND

903

902

801

901

807

804

803

904

905

906

805

806

(BLANK)

(BLANK)

GROUND

CCE - COIL CONTROL RELAY (SOURCE 2)

CCN - COIL CONTROL RELAY (SOURCE 1)

COMMON

J5

24V

10V

11 V

XE1

24V

10V

11 V

10V

XN1

XN2

CCN

CCE

XN1 - SOURCE 1 CONTROL TRANSFORMER

XN2 - SOURCE 1 3 PHASE SENSING TRANSFORMER

XE1 - SOURCE 2 CONTROL TRANSFORMER

XE2 - SOURCE 2 3 PHASE SENSING TRANSFORMER

SINGLE PHASE SOURCE 2 SENSING

3-PHASE SOURCE 1 SENSING

SOURCE 1 CONTROL POWER

SOURCE 2 CONTROL POWER

800

900

SOURCE 2 24V OUTPUT

SOURCE 1 24V OUTPUT

(18)

(1)

3 PHASE SOURCE 2 SENSING

10V

XE2

32

907

Standard Transition R/T Box Schematic

GND

903

902

801

901

807

804

803

904

905

906

805

806

CCEO - COIL CONTROL RELAY (OPEN SOURCE 2)

CCNO - COIL CONTROL RELAY (OPEN SOURCE 1)

GROUND

CCE - COIL CONTROL RELAY (SOURCE 2)

CCN - COIL CONTROL RELAY (SOURCE 1)

COMMON

J5

24V

10V

11 V

XE1

24V

10V

11 V

10V

XN1

XN2

CCN

CCE

XN1 - SOURCE1 CONTROL TRANSFORMER

XN2 - SOURCE1 3 PHASE SENSING TRANSFORMER

XE1 - SOURCE 2 CONTROL TRANSFORMER

XE2 - SOURCE 2 3 PHASE SENSING TRANSFORMER

3 PHASE SOURCE 2 SENSING

SINGLE PHASE SOURCE 2 SENSING

3-PHASE SOURCE 1 SENSING

SOURCE 1 CONTROL POWER

SOURCE 2 CONTROL POWER

800

900

SOURCE 2 24V OUTPUT

SOURCE 1 24V OUTPUT

(18)

(1)

CCEO

CCNO

908

808

20

21

22

31

30

10V

XE2

32

907

Delayed / Closed Transition R/T Box Schematic

Figure 15

Figure 16

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