GTW22P

Main Features
Frequency Hz 50
Voltage V 400
Power factor cos ϕ 0.8
Phase 3

Power Rating
Standby power LTP kVA 21.50
Standby power LTP kW 17.20
Prime power PRP kVA 20.10
Prime power PRP kW 16.08

Ratings definition (According to standard ISO8528 1:2005)

PRP - Prime Power:

It is defined as being the maximum power which a generating set is capable of delivering continuously
whilst supplying a variable electrical load when operated for an unlimited number of hours per year under
the agreed operating conditions with the maintenance intervals and procedures being carried out as
prescribed by the manufacturer. The permissible average power output over 24 h of operation shall not
exceed 70 % of the prime power.

LTP - Limited-Time running Power:

It is defined as the maximum power available, under the agreed operating conditions, for which the
generating set is capable of delivering for up to 500 h of operation per year (whose no more than 300 for
continuative use) with the maintenance intervals and procedures being carried out as prescribed by the
manufacturers. No overload capability is available.

All pictures shown in this document and in its attachments are for illustration purpose only. Actual product may vary due to product enhancement.
 Engine specifications
Engine manufacturer Perkins
Model 404D-22G
[50Hz] Exhaust emission level Stage IIIA
Engine cooling system Water
Nr. of cylinder and disposition 4 in line
Displacement cm³ 2216
Aspiration Natural
Speed governor Mechanical
Prime gross power PRP kW 18.7
Maximum gross power LTP kW 20.6
Oil capacity l 10.6
Coolant capacity l 7
Fuel Diesel
Specific fuel consumption @ 75% PRP g/kWh 238
Specific fuel consumption @ PRP g/kWh 237
Starting system Electric
Starting engine capability kW 2
Electric circuit V 12

Engine Equipment

Standards

The above ratings represent the engine performance capabilities to conditions

specified in ISO 8528/1, ISO 3046/1:1986, BS 5514/1

Fuel system

Rotary type pump

Lube oil system

Wet steel sump with filler and dipstick

Filter

• Fuel filter
• Air filter
• Oil filter

Cooling system

• Mounted radiator
• Thermostatically-controlled system with belt driven coolant pump and pusher fan
 Alternator Specifications
Alternator Mecc Alte
Model ECP28-M/4
Voltage V 400
Frequency Hz 50
Power factor cos ϕ 0.8
Poles 4
Type Brushless
Voltage regulation system Electronic
Standard AVR DSR
Voltage tolerance % 1
Efficiency @ 75% load % 87.8
Class H
IP protection 23

Mechanical structure
Robust mechanical structure which permits easy access to the connections and
components during routine maintenance check-ups.

Voltage regulator
Voltage regulation with DSR. The digital DSR controls the range of voltage, avoiding
any possible trouble that can be made by unskilled personnel. The voltage accuracy is
±1% in static condition with any power factor and with speed variation between 5%
and +30% with reference to the rated speed.

Windings / Excitation system

Generator stator is wound to 2/3 pitch. This eliminates triplen (3rd, 9th, 15th …)
harmonics on the voltage waveform and is found to be the optimum design for trouble-
free supply of non-linear loads. The 2/3 pitch design avoids excessive neutral currents
sometimes seen with higher winding pitches. MAUX (Standard): The MAUX MeccAlte
Auxiliary Winding is a separate winding within the main stators that feeds the
regulator. This winding enables to take an overload of 300% forced current (short
circuit maintenance) for 20 seconds. This is ideal for motor starting requirements.

Insulation / Impregnation
Insulation is of class H standard. Impregnation is made with premium tropicalised
epoxy resins by dipping and dripping. High voltage parts are impregnated by vacuum,
so the insulation level is always very good. In the high-power models, the stator
windings undergo a second insulation process. Grey protection is applied on the main
and exciter stator to give enhanced protection.

Reference standards
Alternator manufactured according to , and complies with , the most common
specification such as CEI 2-3, IEC 34-1, EN 60034-1, VDE 0530, BS 4999-5000, CAN/
CSA-C22.2 No14-95-No100-95.
 Genset equipment

STEEL SUPPORTING FRAME:

• Sturdy Supporting Frame for moto-alternator and canopy.
• Anti-vibration mounting properly sized.

BASEFRAME WITH INTEGRATED METAL FUEL TANK:

• Metal fuel tank.
• Filler neck.
• Air breather (ventilation pipe).
• Minimum fuel level sensor.
• Fuel refiling point inside the canopy, protected by lockable doors.
• Base forcabile by forklift.

EASY AND FAST MAINTENACE SERVICE:

• Four large lateral doors for an easy maintenance & service.
• Manual oil drain pump.
• Kit 1000hr free maintenance available as option.

ENGINE COMPLETE WITH:

• Battery
• Liquids (No Fuel)
• Water temperature sensor
• Lube oil pressure sensor

PROTECTIONS ANTITHEFT / VANDALISM:

• Anti-theft screws.
• Key Lockable door.
• Anti-theft hinges.
• Fuel refiling point inside the canopy, protected by key lockable doors.
• Control panel positioned inside the canopy, protected by key lockable door.
• Remote Control (available as option).
• Door switches with alarm from control unit (available as option)

STACKABLE CANOPY:
• Weatherproof enclosure made of galvanized sheet metal.
• Noise attenuation thanks to Soundproofing material.
• Four removable lifting points for easy Handling.
• Control Panel inside the canopy, protected by door provided with window and lockable
handle.
• Front easy access power cable passage.
• Lateral air inlet opening properly protected and soundproofed.
• Exaust air outlet from the roof, trough wet section protected by rain flap.
• Efficient residential silencer placed inside the canopy.
 Automatic Control Panel (ACP)

Mounted on the genset, complete with Automatic control unit for monitoring, control
and protection of the generating set, protected through door with lockable handle.

DIGITAL INSTRUMENTATION
• Generating set voltage (3 phases).
• Mains voltage.
• Generating set frequency.
• Generating set current (3 phases).
• Battery voltage.
• Power (kVA - kW - kVAr).
• Power factor Cos φ.
• Hours-counter.
• Engine speed r.p.m.
• Fuel level (%).
• Engine temperature.

ANALOGUE INSTRUMENTATION
• Hour meter

COMMANDS AND OTHERS

• Four operation modes: OFF - Manual starting - Automatic starting - Automatic test.
• Pushbutton for forcing Mains contactor or Genset contactor.
• Push-buttons: start/stop, fault reset, up/down/page/enter selection.
• Remote starting availability.
• Acoustic alarm.
• Battery charger.
• RS232 Communication port.
• Settable PASSWORD for protection level.

PROTECTIONS WITH ALARM

• Engine protections: low fuel level, low oil pressure, high engine temperature.
• Genset protections: under/over voltage, overload, under/over frequency, starting
failure, under/over battery voltage

PROTECTIONS WITH SHUTDOWN

• Engine protections: low fuel level, low oil pressure, high engine temperature,
• Genset protection: under/over voltage, overload, under/over battery voltage, battery
charger failure.
• Four poles circuit breaker protection.
• Eart Fault included in the control unit.

OTHERS PROTECTIONS
• Emergency stop button.
• Panel protected through door with lockable handle.

OUT PUT PANEL

Front easy access power cable passage: √
Power Cables Connection to: Power
Terminals
Predisposed for remote control optional: RGW
Dimensional data
Length (L) mm 1900
Width (W) mm 1010
Height (H) mm 1303
Dry weight Kg 763
Fuel tank material Metal
Fuel tank capacity l 80

Autonomy
Fuel consumption @ 75% PRP l/h 3.98
Fuel consumption @ 100% PRP l/h 5.28
Running time @ 75% PRP h 20.10
Running time @ 100% PRP h 15.15

Noise level
Guaranteed noise level (LWA) dB(A) 92
Noise pressure level @ 1 m dB(A) 76
Noise pressure level @ 7 m dB(A) 63

Installation data
Exhaust gas flow @ PRP m³/min 3.64
Exhaust gas temperature @ LTP °C 445

Electrical Data
MAX current A 31.03
Circuit breaker A 32

Other configurations and options available:

GTW / LR Long Running √
GTW / SS Super Silent √
GTW Design Combination √
Monoblock Protections and Longer Service Options √
Anti-theft options √
Fuel tank options √
Electrical options √
GTW / LR LONG RUNNING:

Designed in order to reduce the fuel refilling frequency, allowing a valuable cost
reduction of the fuel transportation.
The Long Running version is particularly suitable for BTS located in remote areas and
in any place where fuel transportation is expensive.

Are available different Metal extended fuel tank single or double wall:

Autonomy with EFT:

EFT0 - Running time @ 75% PRP h 50.25
EFT1 - Running time @ 75% PRP h 125.63
EFT2 - Running time @ 75% PRP h 251.26
EFT3 - Running time @ 75% PRP h 376.88
EFT4 - Running time @ 75% PRP h 502.51

Extended Fuel Tank EFT0

Fuel tank capacity l 200
Length (Genset) (L) mm 1900
Width (Genset) (W) mm 1010
Height (Genset) (H) mm 1446
EXTRA - Dry weight EFT Double Wall: Kg TBC

Extended Fuel Tank EFT1

Fuel tank capacity l 500
Length (Genset) (L) mm 1900
Width (Genset) (W) mm 1010
Height (Genset) (H) mm 1658
EXTRA - Dry weight EFT Single Wall: Kg 175
EXTRA - Dry weight EFT Double Wall: Kg 240

Extended Fuel Tank EFT2

Fuel tank capacity l 1000
Length (Genset) (L) mm 1900
Width (Genset) (W) mm 1010
Height (Genset) (H) mm 1948
EXTRA - Dry weight EFT Single Wall: Kg 209
EXTRA - Dry weight EFT Double Wall: Kg 313

Extended Fuel Tank EFT3

Fuel tank capacity l 1500
Length (Genset) (L) mm 1900
Width (Genset) (W) mm 1010
Height (Genset) (H) mm 2278
EXTRA - Dry weight EFT Double Wall: Kg 386

Extended Fuel Tank EFT4

Fuel tank capacity l 2000
Length (Genset) (L) mm 2512
Width (Genset) (W) mm 1010
Height (Genset) (H) mm 2278
EXTRA - Dry weight EFT Double Wall: Kg 460
GTW / SS- Super Silent

Designed in order to reduce the noise level emissions.

The Super Silent version is particularly suitable for BTS located near or inside the city
centre or in any place where noise level emission restrictions are present.
Modular design, allows to retrofit the sound attenuattion modules (SA), giving the
possibility to transport genset and SA separately and to reassemble it on site.

Noise Level
Guaranteed noise level (LWA) dB(A) 84
Noise pressure level @ 1 m dB(A) 67
Noise pressure level @ 7 m dB(A) 55

Dimensional data
Length (L) mm 2798
Width (W) mm 1010
Height (H) mm 1604
EXTRA - Weight Canopy Super Silent Kg 120

GTW Design Combination

GTW Series design offers several different versions thanks to the total Modularity-
Product-Concept.
 Monoblock Protections and Longer Service - Options Available:
Automatic Lube Oil √
Oversized Lube Oil Filter √
Water Separator Filter √
Heavy Duty Filter √
Pre-heating system √
Windings Total Protection (Alternator) √
Anti-Condensation Heater (Alternator) √
Ingress Protection (Alternator) √

Anti-Theft - Options Available:

Vandal Proof Handle √
Door Switches √

Fuel Tank - Option Available:

External Fuel Refiling √
Automatic Fuel Pump √
Electric Fuel Pump √

Electrical - Option Available:

Transfer switch √
Terminal Low Potential √
Remote Gateway √
Electronic Engine Governor √
Surge Suppressor √
Engine Analogue Gauges √
Fuel Analog Gauge √
Low Coolant Level √
Output DC √

The information is aligned with the Data file at the time of download. Printed on 14/05/2019 (ID 7349)

©2019 | PR INDUSTRIAL s.r.l. | All rights reserved | Image shown may not reflect actual package.
Specifications subject to change without notice