11
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
SOLID NEUTRAL IF REQUIRED
NN
TN
EN
NN
EN
DS - � DISCONNECT SWITCH FOR SERVICE
A3* -� MECHANICALLY ACTUATED EMERGENCY
POSITION CONTACTS
A4* -� MECHANICALLY ACTUATED NORMAL
POSITION CONTACTS
TIME DELAY ON RETRANSFER
CR - � CONTROL RELAY
YN - � PUSH BUTTON TO BYPASS T
SN - � MECHANICALLY ACTUATED CONTACTS
(NORMAL POSITION)
CN1 - �POWER RELAY, ENERGIZES TRANSFER
TO NORMAL SOLENOID
L2 - � NORMAL POSITION LIGHT
ENGINE OVER-RUN TIMER
P1 - � TIME DELAY TO ENGINE START
VFSM- �
EMERGENCY VOLTAGE AND
FREQUENCY SENSING RELAY
TIME DELAY TO EMERGENCY
RT - � EMERGENCY CONTROL RELAY
MECHANICALLY ACTUATED CONTACTS
(EMERGENCY POSITION)
EMERGENCY POSITION LIGHT
CE1 - �POWER RELAY, ENERGIZE
J11
ENGINE START CONTACT FROM P1
NOTE
- ZTSH SHOWN IN NORMAL POSITION WITH NO POWER AVAILABLE
12
12A
13
N3
T3
N2
T2
N1
T1
E3
E2
E1
CE1
CN1
22
21
20
32
31
30
16
15
14
20
B1
21
22
32
31
120V
120V
30
206
306
208R
208
209
CE1
CN1
CR
CR
T
B1
B2
B3
CR
C
NC
NO
U
P1
CN1
23
23A
23B
23C
23Z
28
26
28Z
29
J1
J2
J3
J4
J7
�
W
RT
W -�
�
VFSM
L2
27
RT
J5
T
U
25Z
P1
SN
�
�
B2
B3
DS
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
CEI
36
L1
35Z
SE
35
34
33Y
VFSM
33A
33
RT
38
RT
CR
T - �
U - �
�
SE -�
�
L1 -�
A4
A4
A3
A3
SEE NOTE
CNE
SCN
SCE
307
307R
BR
LEGEND
WIRE CONNECTION
WIRE ON MAIN TERMINAL BLOCK
WIRE ON DISCONNECT PLUG
OPTIONAL ACCESSORY
ZTSH Operation and Maintenance Manual (43R-1000)
Содержание ZTSH Series
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