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Controls Power Supply (CPS) (cont’d)
Standard Transition CPS Schematic
20 | 21 | 22 | 30 | 31 | 32 |
XN1 |
| XN2 | XE1 |
| XE2 |
XN1 - SOURCE 1 CONTROL TRANSFORMER
XN2 - SOURCE 1 3 PHASE SENSING
TRANSFORMER
XE1 - SOURCE 2 CONTROL TRANSFORMER
XE2 - SOURCE 2 3 PHASE SENSING TRANSFORMER
| 24V | 10V | 11V | 10V |
| 24V | 10V | 11V |
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800 | 902 | 804 | 803 | 805 | 806 | 804 | 807 | 900 | 902 | 904 | 903 | 905 | 906 | 904 | 907 |
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| 900 |
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| 800 |
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| 907 |
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| 808 |
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| JC |
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| 908 |
JC |
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| C.V. |
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| GND |
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C.V. |
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| JC |
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| 901 | |
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801 | 801 |
JC | 902 |
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| 807 |
| 806 |
| 805 |
| 906 |
| 905 |
(18)
(1)
SOURCE 2 24V OUTPUT
SOURCE 1 24V OUTPUT 3 PHASE SOURCE 2 (BLANK)
(BLANK)
GROUND
C.V.
SINGLE PHASE SOURCE 2 SENSING
SOURCE 1 CONTROL POWER
SOURCE 2 CONTROL POWER
J5
Delayed Transition CPS Schematic
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| 32 |
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| XN1 - SOURCE 1 CONTROL TRANSFORMER | |
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| XN2 - SOURCE 1 3 PHASE SENSING | |
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| TRANSFORMER |
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| XE2 | XE1 - | SOURCE 2 CONTROL TRANSFORMER | ||
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| XE2 - SOURCE 2 3 PHASE SENSING | |
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| 24V | 10V | 11V | 10V |
| 24V | 10V | 11V |
| 10V |
| TRANSFORMER | |||||
| 800 | 902 | 804 | 803 | 805 | 806 | 804 | 807 | 900 | 902 | 904 | 903 | 905 | 906 | 904 | 907 |
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| 900 | (18) SOURCE 2 24V OUTPUT |
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| 800 | |
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| SOURCE 1 24V OUTPUT | |
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| 907 | |
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JC | JC |
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| 808 | C.V. |
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| 908 |
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| 908 | C.V. | ||
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C.V. | C.V. |
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| C.V. | C.V. |
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| GROUND | ||||||
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JC | JC | 801 |
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| 801 | C.V. | |
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| 902 | |
808 |
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| COMMON | |
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| 903 | ||
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| 908 |
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| 904 | SINGLE PHASE SOURCE 2 SENSING |
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| 803 |
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| 804 | |
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| 807 | |
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| 806 |
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| 805 | SOURCE 1 CONTROL POWER |
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| 906 |
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| 905 | SOURCE 2 CONTROL POWER |
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| (1) |
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| J5 |
■ GE Zenith Controls | ZTG/ZTGD Operation and Maintenance Manual | 23 ■ |