APPENDIX A - TYPICAL SCHEMATIC DIAGRAM 40 - 260 AMPS
N1,2,3,N - NORMAL LINE
T1,2,3,N - LOAD
E1,2,3,N - EMERGENCY LINE
SWITCHED NEUTRAL OR
N3
T3
N2
T2
N1
T1
NN
TN
E3
E2
E1
EN
22
21
20
32
31
30
16
15
20
B1
21
22
CCN
32
31
30
SOLID NEUTRAL IF REQUIRED
CR
CR
T
B1
B2
B3
CR
C
NC
NO
U
P1
CCN
23
23A
23B
23C
23Z
28
26
28Z
29
J1
J2
J3
J4
J7
CCN - �POWER RELAY, ENERGIZES TRANSFER
�
TO NORMAL SOLENOID
W
RT
W -� TIME DELAY TO EMERGENCY
RT - � EMERGENCY CONTROL RELAY
CCE - �POWER RELAY, ENERGIZE
VFSM- �
EMERGENCY VOLTAGE AND
�
FREQUENCY SENSING RELAY
VFSM
L2
27
RT
J5
T
U
25Z
P1
LEGEND
WIRE CONNECTION
WIRE ON MAIN TERMINAL BLOCK
WIRE ON DISCONNECT PLUG
OPTIONAL ACCESSORY
A4
NORMAL
SN
A3
EMERGENCY
MECHANICALLY ACTUATED
NORMAL AND EMERGENCY
POSITION CONTACTS A3 & A4
B2
B3
CE - �TRANSFER TO EMERGENCY SOLENOID
CN -�TRANSFER TO NORMAL SOLENOID
RN -�CN RECTIFIER
DS - �DISCONNECT SWITCH FOR SERVICE
XN - NORMAL CONTROL TRANSFORMER
XE - EMERGENCY CONTROL TRANSFORMER
UNDER VOLTAGE RELAYS
COM
TS
YN
J8
J6
J9
CR
33Z
37
W
RT
J10
25
24
C
NC
NO
CCE
36
L1
35Z
SE
35
34
33Y
VFSM
33A
33
RT
38
RT
CR
T - � TIME DELAY ON RETRANSFER
CR - � CONTROL RELAY
YN - � PUSH BUTTON TO BYPASS T
L2 - � NORMAL POSITION LIGHT
U - � ENGINE OVER-RUN TIMER
P1 - � TIME DELAY TO ENGINE START
SN - � MECHANICALLY ACTUATED CONTACTS
�
(NORMAL POSITION)
SE -� MECHANICALLY ACTUATED CONTACTS
�
(EMERGENCY POSITION)
L1 -� EMERGENCY POSITION LIGHT
206
209
CCE
DS
209R
206R
RN
CN
306
307
307R
306R
RE
CE
RE -�CE RECTIFIER
NN
EN
14
J11
ENGINE START CONTACT FROM P1
NOTE
- ZTSH SHOWN IN NORMAL POSITION WITH NO POWER AVAILABLE
11
12
12A
13
ZTSH Operation and Maintenance Manual (43R-1000)
Содержание ZTSH Series
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