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GSW1270M

Pramac GSW1270m 1270 kva generator set

Reference:
GSW1270M
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The GSW1270M genset of PRAMAC is equipped with

  • PERKINS diesel engines
  • Water cooled.
  • Integrated tank of 1000 liters
  • Engine fluids and charged battery included.
  • Manual oil extraction pump.
  • Multipurpose electrical panel, with AC3000 control module for Automatic and Manual control.
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62,17 KW

Product Details
GSW1270M
Brand
PRAMAC
Model
GSW1270M

General features

Length
2285 mm
Width
920 mm
Height
1465 mm
Weight
1060 KG
Motor brand
Perkins 1103A-33TG2
Motor Power (KW)
62.17 / 56.37
Fuel
Diesel
Alternator brand
Mecc Alte ECP 32 2M B
Description

Generating set equipment

The bedplate is made of steel profile complete with adequately dimensioned anti-vibration supports.

The body is soundproof and consists of modular panels, covered with galvanized steel with anti-corrosion and adverse conditions treatment, duly fixed and sealed, in order to obtain a completely waterproof receptacle.

It has easy access to the generator set for maintenance purposes thanks to side access doors fixed by stainless steel hinges and perforated galvanized steel interior. It also includes removable panels with screw holes protected by a plastic cover. In addition, the control panel protection door is provided with a suitable window and lock.

It consists of an adequately protected and soundproofed side air intake opening and a roof exhaust vent, rain gutter protected by an appropriate grille.

Complete soundproofing is achieved thanks to the sound-absorbing material with acoustic insulation and the efficient residential silencer placed inside the bodywork.

Engine specifications

Fuel system:

  • Direct fuel injection system, fuel lift pump
  • Fuel cooler
  • Closed fuel system

Lubricating oil system:

  • Low oil pressure switch
  • Wet sump with filler and dipstick
  • Lube oil filters
  • Oil cooler with separate filter head

Combustion air system:

  • Exhaust turbochargers
  • Dry type air filter assembly with contamination indicator
  • Intake air pressure (max. at fuel power): 22 mbar

Refrigeration system:

  • High coolant temperature switch
  • Twin thermostats, water pump
  • System designed for environments up to 50ºC
  • Radiator with air-to-air charge cooler

Alternator specifications

Mechanical structure

It has a robust mechanical structure which allows easy access to connections and components for routine maintenance.

Voltage regulator

  • Voltage regulation provided by DER1: based on the DSP (Digital signal Processor) system, it consists of a digital regulator that combines the functions of Voltage Regulator and Alternator Diagnostics and Protection incorporated in a small control card.
  • Supply voltage: 40Vac÷270Vac
  • Maximum output current: 4A dc. Frequency range: 12Hz÷72Hz.
  • Automatic single-phase recognition sensor. Average voltage regulation value.
  • Voltage regulation range sensor from 75Vac to 300Vac.
  • Voltage regulation accuracy: ± 1% without nominal load up to its nominal load, in stationary conditions, against any power factor and for frequency variations between 5% and +20% of the nominal value.
  • Voltage regulation accuracy: ± 0.5% in stabilized conditions (load and temperature).
  • Voltage drop and overvoltage within ± 15%.
  • Voltage stabilization time between ± 3% of nominal value in less than 300 msec.
  • Low speed protection with adjustable parameters and limits.
  • Overvoltage and undervoltage alarm. Excitation overcurrent protection with time delay.
  • Storage of alarm conditions (type of alarm, number of events, duration of last event, total time).
  • Memorization of the controller operating time.

Wiring system / excitation

The generator stator is wound in 2/3, thus eliminating triple harmonics (3rd, 9th, 15th ...) in the voltage waveform. This optimal design avoids problems in the supply of non-linear loads. The 2/3 winding design avoids excessive neutral currents present in larger windings.

MAUX: The MAUX MeccAlte auxiliary winding is an independent winding that feeds the regulator. Thanks to this winding it is possible to withstand an overload of 300% of the rated current (maintaining the short-circuit current) for 20 seconds. This is very important for motor starting requirements.

Insulation impregnation

Insulation is class H standard. Impregnation is done with premium epoxy resins bonded by dipping and dripping. High voltage parts are vacuum impregnated, so that the insulation level is always very good. In high-power models, the stator windings undergo a second insulation process. Gray protection is applied on the main stator exciter in order to achieve higher protection.

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