Asco 940, Руководство оператора, Страница: 26 / 36

P H Y S I C A L W I R I N G
30 . 70 . 1 00
&
1 50 AMPS
260
S.
400 AMPS 600
S.
SOO AMPS
LOAD
LOAD
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E>£RGENCY
LL I LL2 LLO
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EMERGENCY
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ACC .
NL I NL2 ELO 28
70 6 72
6
69 7 7 1
9
6
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9
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J 5
1 6
1 8 1 4
TS
TRANSFER
SWITCH
VOLTAGE AND FREOUENCY SENSING
1
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1 3
1
1 4
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A . SINGLE PHASE CLOSE DIFFERENTIAL VOLTAGE SENSING
OF NORMAL SOURCE . PICKUP VOLTAGE IS ADJUSTABLE FROM
85Y. TO 1 00Y. OF NOMINAL AND THE DROPOUT IS ADJUSTABLE
FROM 75Y. TO 9870 OF THE P I CKUP VALUE. FACTORY SET TO
PICKUP AT 90Y. AND DROPOUT AT 85Y. OF NOMINAL
UNLESS OTHERWISE SPECIFIED .
STANDARD FEATURE 4A.
B . SINGLE PHASE VOLTAGE SENSING OF EMERGENCY SOURCE .
PICKUP ADJUSTABLE FROM 85Y. TO 1 00Y. OF NOMINAL .
FACTORY SET TO P I CKUP AT 9070 UNLESS OTHERWISE
SPEC IFIED .
C . FREQUENCY SENSING OF EMERGENCY SOURCE . PICKUP
ADJUSTABLE FROM 90Y. TO 1 00Y. OF NOMINAL . FACTORY
SET TO PICKUP AT 95% UNLESS OTHERWISE SPECIFIED .
TnE
DELAYS
D . TIME DELAY TO OVERRIDE MOMENTARY NORMAL SOURCE
OUTAGES TO DELAY ALL TRANSFER SWITCH AND ENGINE
STARTING SIGNALS . ADJUSTABLE FROM 0 TO 6 SECONDS .
FACTORY SET AT
I
SECOND UNLESS OTHERWISE SPECIFIED .
ST Al'l>ARD FEA TU?E
I .
E . RETRANSFER T O NORMAL TIME DELAY . TIME DELAY IS
AUTOMATICALLY BYPASSED IF EMERGENCY SOURCE FAILS AND
NORMAL SOURCE I S AVAILABLE . ADJUSTABLE FROM 0 TO 30
MINUTES . FACTORY SET AT 30 M INUTES UNLESS OTHERWISE
SPECIFIED .
STAI'I>ARD FEATURE 3A.
F . UNLOADED RUNNING TIME DELAY FOR EMERGENCY ENGINE
GENERATOR COOLDOWN . ADJUSTABLE FROM 0 TO 60 MINUTES .
FACTORY SET AT 5 MINUTES UNLESS OTHERWISE SPECIFIED .
ST Al'l>ARD FEA TU?E
2E.
G . TRANSFER T O EMERGENCY T I ME DELAY . ADJUSTABLE FROM
o
TO 5 MINUTES . FACTORY SET AT
0
MINUTES UNLESS
OTHERWISE SPEC I F I ED .
STAI'I>ARD FEATURE
26 .
MANUAL CONTROLS
H . MOMENTARY TYPE TEST SWITCH ( TGL ) TO S IMULATE
NORMAL SOURCE FAILURE . INSTALLED ON DOOR OF
ENCLOSED TYPE . SHIPPED LOOSE FOR OPEN TYPE .
STANDARD FEATURE
O.
REMOTE AUTOMATIC TRANSFER SWITCH CIRCUITS
J . TERMINAL PROVISIONS FOR REMOTE CUSTOMER CONTACT
WHICH OPENS TO S I GNAL A . T . S . TO TRANSFER TO
EMERGENCY . REFER TO OPERATOR ' S MANUAL TO
ACTIVATE.
STANDARD FEATURE 1 7 .
( SEE NOTE 9 )
MANUAL CONTROLS
D
6S,
MOMENTARY OVERRIDE SWITCH TO MANUALLY BYPASS
TIME DELAY ON RETRANSFER TO NORMAL . INSTALLED ON
DOOR OF ENCLOSED TYPE . SHIPPED LOOSE FOR OPEN TYPE .
D 6C,
MOMENTARY RESET SWITCH FOR MANUAL RETRANSFER
OF THE A . T . S TO THE NORMAL SOURCE ONLY AFTER
TIME DELAY FEATURE 3A EXPIRES WITH INSTANTANEOUS
AUTOMATIC RETRANSFER IN THE EVENT OF EMERGENCY
SOURCE FAILURE . INSTALLED ON DOOR OF ENCLOSED TYPE .
SHIPPED LOOSE FOR OPEN TYPE .
INDICATORS
D
1 4A/ 1 4B .
ADD I T IONAL AUXILIARY CONTACT SETS .
ONE SET IS SUPPLIED AS STANDARD . SPECIFY TOTAL
OUANTITY WHEN MORE THAN ONE SET IS REOUIRED .
TOTAL OUANTITY
NL I NL2 NLO
ACC .
28
TS
TRANSFER
SWITCH
1 1
ACC. NORMAL
70 6
72 8
28
[ 5 1 7
i n
1 4 16 1 8
TS
TRANSFER
SWITCH
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S T A N D A R D F E A T U R E S
ENGINE CONTROL CONTACTS
K . ONE SET OF CONTACTS CONSISTING OF , ONE CONTACT
THAT CLOSES WHEN NORMAL SOURCE FAILS AND ONE
CONTACT THAT OPENS WHEN NORMAL SOURCE FAILS .
CONTACTS ARE GOLD FLASHED FOR LOW VOLTAGE ENGINE
START SIGNALS OR OTHER CUSTOMER USE .
RATED 1 0 AMPS . 32 VOLTS DC .
STAI'I>ARO FEATURE 7/S .
INDICATORS
L .
ONE SET OF AUXILIARY CONTACTS CONSISTING OF , ONE
CONTACT CLOSED WHEN A . T . S . IS CONNECTED TO
NORMAL AND ONE CONTACT CLOSED WHEN A . T . S . IS
CONNECTED TO EMERGENCY . ( ADDITIONAL SETS OF
AUXILIARY CONTACTS ARE AVAILABLE AS OPTIONS - SEE
BELOW ) .
STANDARD FEATURE 1 4A/ 1 4B .
M . ONE SET O F SIGNAL LIGHTS CONSISTING OF , ONE SIGNAL
LIGHT (GREEN ) TO INDICATE WHEN A . T . S . IS CONNECTED
TO NORMAL SOURCE AND ONE SIGNAL LIGHT (RED ) TO
INDICATE WHEN A . T . S . IS CONNECTED TO EMERGENCY SOURCE .
LIGHTS ARE INSTALLED ON DOOR OF ENCLOSED TYPE .
SHIPPED LOOSE FOR OPEN TYPE .
STANDARD FEATURE 9A/96 .
TRANSFER INHIBIT
N . TERMINAL PROVIS IONS FOR REMOTE CUSTOMER CONTACT ( S )
TO INHIBIT A . T . S . TRANSFER TO NORMAL ANDIOR EMERGENCY
SOURCE . CUSTOMER CONTACT OPENS TO I NH I B I T TRANSFER .
REFER TO OPERATOR ' S MANUAL TO ACTIVATE .
STANDARD FEATURE 34A134B .
( SEE NOTE 9 )
CCMtIT
INC
CCMtIT ON
TRANSFER
P . UPON FEATURE
I
T I MING OUT ( DUE TO A TEST OR NORMAL
SOURCE FAILURE) THE A . T . S . IS COMMITTED TO TRANSFER
TO EMERGENCY , EVEN IF THE NORMAL SOURCE IS RESTORED
BEFORE THE TRANSFER TAKES PLACE . THIS "COMMIT ON
TRANSFER " FEATURE CAN BE OVERRIDDEN BY OPERATING A
SWITCH IN THE CONTROL PANEL . REFER TO OPERATOR ' S
MANUAL .
FREQUENCY SELECTION
R . OPERATING FREQUENCIES OF 50HZ . OR 60HZ . MAY BE
SELECTED BY A SWITCH IN THE CONTROL PANEL . FACTORY
SET AT SPECIFIED FREQUENCY . REFER TO OPERATOR ' S
MANUAL .
O P T I O N A L A C C E S S O R I E S
INDICATORS
(CONT ' D . )
D
9C/90
, ONE SET OF SIGNAL LIGHTS CONSISTING OF ,
ONE SIGNAL LIGHT ( GREEN ) TO INDICATE NORMAL SOURCE
AVAILABLE AND ONE SIGNAL LIGHT (RED ) TO INDICATE
EMERGENCY SOURCE AVAILABLE . INSTALLED ON DOOR OF
ENCLOSED TYPE . SHIPPED LOOSE FOR OPEN TYP E .
PLANT EXERCISER
D
I I C ,
ENGINE GENERATOR EXERCISING TIMER W I TH
"LOAD" OR "NO-LOAD" OPERATING MODES . ADJUSTABLE
FROM
I
M I NUTE TO
24
HOURS IN I MINUTE I NCREMENTS .
FACTORY SET FOR 20 MINUTES MINIMUM EACH WEEK
UNLESS OTHERWISE SPECIFIED . REFER TO OPERATOR ' S
MANUAL FOR MODE SELECTION .
MOTOR
LOAO
TRANSFER
o 27 ,
INPHASE MONITOR CONTROL FOR TRANSFER AND
RETRANSFER OF MOTOR LOADS , SO THAT INRUSH
CURRENTS DO NOT EXCEED NORMAL STARTING CURRENTS ,
TO AVOID NUISANCE TRIPPING OF CIRCUIT BREAKERS
AND POSSIBLE MECHANICAL DAMAGE TO MOTOR COUPLINGS .
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