Water Cooled Gens Sets
ALPHA Series
Water-Cooled Gensets
POWERED BY LISTER PETTER ENGINES
50 Hz; 1500 r/min; power outputs: 5.9—43.5 kVA
Water-cooled generating sets with electronic control module
Choice of:
- 50 Hz, 1500
- Lister Petter ALPHA-Series water-cooled, direct
injection diesel engine (2, 3 or 4 cylinders)
- naturally aspirated or turbocharged
- open set (W) or acoustic set (A & W)
Standard Features
Acoustic Sets Only:
- acoustic canopy
- residential exhaust silencer
- central point lifting eye
- external emergency stop button
Open Set (W)
- control system with electronic digital
control module (for features see page 3)
- single-bearing, 2 or 4-pole brushless
alternator
- 66-litre polypropylene fuel tank with
contents gauge
- galvanised steel base-plate with forklift
pockets and bunding for the fuel tank
- anti-vibration mountings
- 12 V starter battery and leads
- mechanical governing
- emergency stop button (lock-down type)
- pusher fan
- Operators’ Handbook
- electrical diagrams
Open Sets Only:
- engine-mounted exhaust silencer
LPHA Series: Water-Cooled Genset Technical Data Sheet
Engine Accessories
- medium-duty air cleaner
- oil and fuel filters
- fuel-lift pump
- 12 V electric starting system
Alternator Specification
- single-bearing, 2 or 4-pole brushless
alternator
- solid state AVR with ±1.5% as standard
- class H insulation on the rotor and stator,
with ingress protection rating 23
Optional Items
- residential exhaust silencer for open sets
(as fitted to acoustic)
- acoustic canopy kit (including residential
silencer kit) for retro-fitting to electric-start
open sets only
- 2-wheel trailer
- basic tool kit
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Control Cubicle
All sets have a control cubicle mounted on
a vibration-isolated support, which has the
following features:
- electronic digital control module with
monitoring/control facility and warning
indicators
- automatic shutdown protection
- emergency stop button (lock-down type)
- AC output circuit breaker with over-current
protection
- DC circuit control switch and overload
circuit breaker
The control module gives digital readouts of:
- generator voltage (phase-to-phase and
phase-to-neutral)
- generator current (each phase displayed
separately)
- output frequency
- engine speed
- engine oil pressure
- engine coolant temperature
- battery voltage
- engine hours run
The control module has indicators for:
- overspeed/underspeed
- emergency stop
- engine oil pressure
- engine temperature
- failure to start
- battery charger failure
Automatic shutdown occurs under:
- low engine oil pressure
- high engine temperature
- overspeed/underspeed
- failure to start after three attempts
Manual/Remote Start Sets
These sets have the flexibility of either
manual or remote automatic operation:
- manual operation is by START and STOP
push-buttons on the control module
- remote operation is achieved by connecting
a 2-wire circuit to the relevant terminals on
the control module and is activated by setting
the control module to AUTO
Automatic Mains Failure Sets (AMF)
In the event of a mains failure, the generating
set will automatically operate to supply the
electrical load. In addition to the standard
features, automatic mains failure sets have:
- wall-mounted cubicle governing automatic
mains failure operation
- control module timer circuits set to delay
start, delay transfer back to mains and delay
stop to allow for engine cooldown
- solid-state automatic battery charger that
maintains charge when set is not running
The wall-mounted cubicle features:
- mains monitoring unit to control set
operation
- load-transfer contactors, mechanically
and electrically interlocked (rated for set
output)
- indicator for mains-on-load or plant-on-load
Directech (Pty) Ltd
Directech Industrial Park,
corner Homestead & Orleans Roads,
Kya-sand, South Africa
PO Box 771174, Fontainebleau, 2032, South Africa
Tel: +27 11 708 2202 Fax: +27 11 708 2217
Website: www.hawkpowergenerators.com
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