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MITSUBISHI MGS SERIES
DIESEL GENERATOR SET
MGS2500HV
Type & Design
MGS original design, single bearing, 4 pole, screen protected, selfexciting, self regulating and brushless with fully
connected damper windings, salient pole rotors, A.C. exciter and rotating rectifier unit. Direct coupled to engine and
regreaseable bearing, direct drive centrifugal blower.
With Space heater.
Enclosure: Drip-proof IP22
Terminal box: Totally enclosed IP44
Winding System
Standard 6 wire winding is provided. All windings are formed wound and impregnated in vacuum pressure with a special
epoxy resin.
Overspeed capability: 125% for 2 minutes
Insulation: Class 'H' of IEC
Temperature rise: 150°C（Stand-by）
Temperature rise: 125°C（Prime）
Voltage Regulator
Fully sealed, 3 phase RMS sensing AVR with built-in protection against sustained over-excitation. This de-excites the
generator after a minimum of 5 seconds.
Voltage regulation: Less than +/- 0.5% from no load to full load at any power factor between 0.8 lagging and 1.0
allowing for a 4% engine speed variation
Voltage adjustment: +/- 6%
Wave form: Less than 5% deviation
Permanent Magnet Generator (PMG)
Electrically isolated from the main alternator stator windings powers AVR - sustaining approx. 250% of short circuit current
at the AC generator output terminals for not more than 10 seconds by means of excitation voltage via AVR
Sensors
Temperature sensors are provided as follows.
Stator winding, 2 per each phase, PT100
Bearing, PT100
Electrical Design
In accordance with BS5000 Part 3, VDE0530, UTE51100, NEMA MG1-22, CEMA, IEC34-1, CSA22.2, AS1359 and
JEC2100.
Telephone Influence Factor (TIF): Less than 50
Telephone Harmonic factor (THF): Less than 2.5%
Radio interference: Suppression is in line with the provision of VDE Class G and N
Gen Set Option Features
■ ENGINE
Air Cleaner, paper element dry type
Battery Kit
Battery Charger
Anchor Bolts
■ FUEL
Fuel Day Service Tank
■ LUBRICATION
Lub. Oil Priming Pump
■ EXHAUST
Exhaust Silencer
Exhaust Flexible Pipe
■ GENERATOR
Power Factor Regulator
■ CONTROL PANEL
Diesel Generator Integrated Communication Synthesizer (DGICS-MII)
Auxiliary Control Panel
Remote Monitor Interface
Temperature Meter for Winding & Bearing
■ SWITCHGEAR
Circuit Breaker VCB
Reverse Power Relay
Power Systems Engine Section, Engine Sales Department
16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 108-8215 JAPAN
TEL: 81-3-6716-4771 FAX: 81-3-6716-5854
Mitsubishi Heavy Industries, Ltd. serves for the customers with improved products continually.
Therefore specification and some materials will be changed without notice.
The International System of units (SI) is used in this publication.
MGS SERIES AC GENERATOR MODEL: MG-KT82M