Brochures and Data Sheets

13
ASCO 7000 SERIES Generator Paralleling Co
System Operational
Modes
• Automatic standby
• Prime power
• Parallel with utility
System Control
Load management
control (automatic
generator load demand
and bus load optimiza-
tion) for up to 128 ATS’s
or electrically operated
feeder circuit breakers
Manual load shed
bypass control with
bus under-frequency
protection
Hard-wired engine start
and load shed relays
System test without
load (off-line)
Test with load (on-line)
Emergency stop
Audible alarm horn
Automated manual
paralleling provisions
Engine Generator Control
Automatic engine start
Automatic synchroniz-
ing and paralleling
Engine governor con-
trol, load sharing, soft
loading/unloading
No external load
share components
required
Adjustable engine
cool-down timer
System Controls
Redundancy
Master PLC redundancy:
hot standby or hot
standby synchronized
Multiple (Master OIP
type) touch screens for
the generator controls
Real time clock
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Two automated manual
paralleling provisions:
via touch screen with
a Synchroscope or via
push-buttons, mounted
on the master door
The Master Control Touch
Screen Operator Interface
Panel (OIP)
ASCO DPC 12” or 15”
(optional) TFT color
Real time clock
Customized screens
with JCAHO records
capability
Basic OIP Screens:
Main menu
System overview
screen with the
one-line diagram
Metering (bus and
generators)
Manual paralleling
control
ATS status
System setup
control
Bus protection and
setup
Engine generator
protection and
setup
Utility control and
setup
Utility metering
Utility protection
and setup
Utility status and
alarms
Engine generator
alarms and shut-
downs
kW trending
Multiple parameter
service trending
Event data log
Full range of service
Log in
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Compact flash card
portable memory
capability for storing
and capturing any of
displayed screens, in-
cluding event data logs.
The Generator Control
Touch Screen
ASCO DPC 12” or 15”
TFT color (optional)
Screens to control and
monitor each or each
pair of generators
Compact flash card
portable memory
capability for storing
and capturing any of
displayed screens, in-
cluding event data logs.
Metering
Voltage ( A-B, B-C,
C-A or A-N, B-N, C-N)
Current A,B,C
Frequency
kW, kWh
kVA
kVar
Power factor
Synchroscope
Engine battery voltage
Running time meter
System Bus Protective
Relaying
0.25% accuracy
Based on true RMS
sensing
Device 27/59 - bus un-
der/over voltage relay
(three phase)
Device 81O/U – bus
over/under frequency
relay
Generator Protective
Relaying
0.25% accuracy
Based on true RMS
sensing
Device 27/59 -
under/over voltage
relay (three phase)
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Device 81O/U – over/
under frequency relay
Device 32 – reverse
power relay
Device 40Q –loss of
excitation (reverse VAR)
relay
Device 15/25V – auto
and manual synchroniz-
ing relays
Engine Protection Alarms
(if properly equipped)
Low coolant temp-
erature pre-alarm
High coolant temp-
erature pre-alarm
Low oil pressure pre-
alarm and shutdown
Low fuel alarm
Low engine battery
alarm
Over-crank shutdown
Over-speed shutdown
Utility Protective
Relaying (for parallel with
utility mode with utility-tie
controls only)
0.25% accuracy
Based on true RMS
sensing
Utility grade type,
discrete or multi-func-
tional solid state, field
adjustable relays
Device 32 – reverse
power relay (three
phase)
Device 27/59 -
under/over voltage
relay (three phase)
Device 81O/U – over/
under frequency relay
Device 47 –negative
sequence voltage relay
Device 67 - directional
overcurrent relay
Device 86 – lockout
relay
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