Head Offie

S P E C I F I C A T I O N S

FOR REFERENCE

4-2-2 Kamitakada, Nakano-ku, Tokyo, Japan 164-0002Tel 03-32233-1111 Fax 03-5380-7171

Soundproof Diesel Engine-DrivenAC Generator

M O D E L : D C A - 2 5 S P K

Co.,Ltd.

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1. A P P L I C A T I O N

1. 1 This specfication covers the water-colled, diesel engine-driven ACgenerator model DCA-25SPK (hereafter referred to as generating set).

1.2 This generating set shall be designed, manufactured and tested in accordance with the latest standards of of JIS, JEC and JEM. JIS: Japanese Industrial Standard JEC: Standard of the Japanese Electrtechnical Committe JEM: The Standard of the Japan Electrical Manufacture’s Associationother matters which are not specifically mentioned in the above standards shall be subject to Denyo Co.,Ltd.’s production regulations.

2. GENERAL

2.1 Materials and WorkmanshipThe materials used in the manufacture ofthis equipment shall be of thehigh quality, an shall be free from defects and imperfections.All materials and apparatus not manufactured by Denyo Co., Ltd. shall bethe products of wel;-known manufacturers. The workmanship shall be of thehigh grade and in accordance with the most efficient, up-to-dateprocedures.

2. 2 Change Minor changes after the final design may be made by Denyo Co., Ltd.without prior notice to the purchaser. In case of major changes oradditional equipment which may result in an increase or decrease ofequipment’s cost, such modifications shall be made in writing and agreed toby both parties prior to production and shall constitute an amendmentto these specifications.

2. 3 Tests and InspectionsRout tests and ispections shall be final in our factory.if any tests and ispections beyond the scope of Denyo’sstandardcommercial procedures are required by the purchser, charges for suchinspections or testsshall be added to our estimate. Conditions of any suchtests and inspections shall be mutually agreed upon between both parties.

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3 . S T R U C T U R E

The generating set prossesses a solid structure, and is comprised of a water-cooleddiesel engine and a generator, which are directly coupled on a common base.A coupling housing is employed to connect the generator to the engine.Firm couplingof the engine and generator is ensured by tight connection ofthe housing exterior. The rotating section of the generator is directly coupledto the flywheel of the engine with a flexible coupling plates made of laminatedthin steel. The generator is of single bearing construction.The standard generator is of the brushless thpe.Aheavy gauge steel bonnet and side door completely cover the engine,generator and accessories, protecting the unit from effects of weathe orpossible handling damages at the construction site. A lifting hook is attached to the common base, and it extends to the balance point throug the bonnet top.

4. SPECIFICATIONS

4.1 Ambient Conditions

This generating set should meet the following conditions::

(1) Ambient temperature :-5 ْ C or higher, 35 ْ C or lower (2) Altitude : up to 500m above sea level (3) Relative humidity : 85% or lower (4) Place of installation : outdoor

-Note- Generator rated output is in accordance with JIS standard ambient conditions. JIS standard ambient conditions (A) Ambient temperature : 25 ْC (B) Atmospheric pressure : 100 kPa (C) Relative humidity : 31 %

4.2 Dimensions and Weight

Length : 1580 mm Width : 650 mm Height : 900 mm Dry Weight : 600 kg

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4.3 AC Generator

Generator Model : DF-0270K GeneratorType : Rotating-field, protection type synchronous generator Excitation : Brushless type (withAVR) Continuous Duty Rating : 25 kVA Voltage : 220 V Current : 65.7 A Frequency : 60 Hz No. of Poles : 4 Winding Connection : Star Speed : 1800 min-1 Power Factor : 0.8 (lagging) Rating : Continuous Phase : 3 (4 wires) Insulation System : Class F Cooling System : Self ventilation -NOTE- Continuous Duty Rating : The generating set is designed for continuous operation under normal load conditions with an overload capacity (105% of rating capacity) up to the standby rating for intermittent periods. Continuous dutyrating is in accordance with JIS standard ambient conditions.

4.4 Engine

Maker and Model : KUBOTA V2203 Type : Vertical, water-cooled,4-cycle, Diesel Engine Rated Output : 23.7 kW, 1800 min-1

No. of Cylinders : 4 Bore X Stroke : 87 mm X 92.4 mm Piston Displacement : 2.197 L Direction of Rotation : Clockwise (When viewed from the fan side) Governor : Mechanical all speed governor Cooling System : Water cooling by radiator with fan Lubricating System : Gear pump Starting Motor : Electric Start (12V- 104 kW) Charging Generator : 12 V - 360 W Battery : 65D31R(12 V - 70Ah) Fuel : Diesel fuel (ASTM No. 2 or equivalent) Lubricating Oil : API service class, SD class or higher

-NOTE- “Rated Outpur” is in accordance with JIS standard ambient conditions

4.5 Capacity

Cooling water capacity : approx. 7.9 L Lube oil capacity : approx. 7.6 L Fuel tank capacity : approx. 62 L

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6. INSTRUMENTATION ON THE CONTROL PANEL

6.1 for AC Power Frequency Meter 1 pc. AC Ammeter 1 pc. AC Voltmeter 1 pc. AC Circuit Breaker (Molded case circuit breaker) 1 pc. Voltage Regulator 1 pc. Earth Leakage Relay(Option) 1 pc.

6.2 for Engine

Starter Switch 1 pc. Hour Meter 1 pc. Throttle Lever 1 pc. Fuel Meter 1 pc. Warning Lamp Unit 1 set (oil press. / water temp. / charging. / preheat)

6.3 Output Terminals

Output Terminal (3-phase, 4 wire) 1 set 1-Phase Output Receptacle(Option) 2 pcs. Ground Terminal 1 pc.

7. SAFETY CONTROLS

The generating set shall be equippedwith automatic safety controls which will automatic safety controls which will shut down the engine in the event of any abnormal condition such as: (A) Low lubricating oil pressure (B) High jacket water temperature (C) Battery Charging failure (D) Overcurrentof generator

In the event of (D), a circuit breaker will trip automatically, but the engine keeps running.

8. ATTACHMENT

Instruction Manual 1 vol Parts List 1 vol .9. COATING

The generating set and the engine shall be the manufacturer’s standard colors. (Munsell No.7.5 BG/10, No. N-1)

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6. INSTRUMENTATION ON THE CONTROL PANEL

6.1 for AC Power Frequency Meter 1 pc. AC Ammeter 1 pc. AC Voltmeter 1 pc. AC Circuit Breaker (Molded case circuit breaker) 1 pc. Voltage Regulator 1 pc. Earth Leakage Relay(Option) 1 pc.

6.2 for Engine

Starter Switch 1 pc. Hour Meter 1 pc. Throttle Lever 1 pc. Fuel Meter 1 pc. Warning Lamp Unit 1 set (oil press. / water temp. / charging. / preheat)

6.3 Output Terminals

Output Terminal (3-phase, 4 wire) 1 set 1-Phase Output Receptacle (Option) 2 pcs. Ground Terminal 1 pc.

7. SAFETY CONTROLS

The generating set shall be equippedwith automatic safety controls which will automatic safety controls which will shut down the engine in the event of any abnormal condition such as:

(A) Low lubricating oil pressure (B) High jacket water temperature. (C) Battery charging failure (D) Overcurrent of generator

In the event of (D), a circuit breaker will trip automatically, but the engine keeps running.

8. ATTACHMENT

Instruction Manual 1 vol. Parts List 1 vol. 9. COATING

The generating set and the engine shall be the manufacturer’s standard colors. (Munsell No. 7.5 BG 5 / 10, No. N-1)

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