SPEC. No. C D A T E : MAR. 22, '10

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1 SPEC. No. C D A T E : MAR. 22, '10 SPECIFICATIONS ENGINE-DRIVEN AC GENERATOR MODEL DCA-220ESEI [50Hz 380V] HEAD OFFICE Nihonbashi-horidomecho, Chuo-ku, Tokyo, Japan TEL FAX

2 1. APPLICATION 1.1 This specification covers the water-cooled, diesel engine driven AC generator model DCA-220ESEI (hereafter referred to as generating set). 1.2 The generating set shall be designed, manufactured and tested in accordance with the latest standards of ISO Other 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 Workmanship The materials used in the manufacture of this equipment shall be of the high quality, and shall be free from defects and imperfections. All materials and apparatus not manufactured by Denyo Co.,Ltd. shall be the products of well-known manufacturers. The workmanship shall be of the high grade and in accordance with the most efficient, up-to-date procedures. 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 or additional equipment which may result in an increase or decrease of equipment's cost, modifications shall be made in writing and agreed to by both parties prior to production and shall constitute an amendment to these specifications. 2.3 Tests and Inspection Routine tests and inspections shall be final in our factory. If any tests and inspections beyond the scope of ISO 8528 standard commercial procedures are required by the purchaser, charges for such inspections or tests shall be added to our estimate. Conditions of any such tests and inspections shall be mutually agreed upon between both parties. 2.4 Ambient Conditions The generating set should meet the following conditions: (1) Ambient temperature : -5 C or higher, 40 C or lower (2) Altitude : Up to 1000 m above sea level (3) Relative humidity : 85 % or lower (4) Place of installation : Indoor and outdoor - 1 -

3 3. STRUCTURE The machine possesses a solid structure, and is comprised of a water cooled diesel 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 coupling of the engine and generator is ensured by tight connection of the housing exterior. The rotating section of the generator is directly coupled to the flywheel of the engine with a flexible coupling plates made of laminated thin steel. The generator is of single bearing construction. The standard generator is of the brushless type. A heavy gauge steel bonnet and side door completely covers the engine, generator and accessories, protecting the unit from effects of weather or possible handling damages at the site. A lifting hook is attached to the common base, and it extends to the balance point through the bonnet top. 4. SPECIFICATIONS 4.1 AC Generator Generator model : DF-2400I Type : Rotating-field, synchronous generator Excitation : Brushless type (with AVR) Continuous duty rating : 200 kva Voltage : 380 V Current : 304 A Frequency : 50 Hz Speed : 1500 min -1 Direction of rotation : Clockwise (viewed from the coupling side) Power factor : 0.8 (lagging) Phase : 3 (4 wires) No. of Pole : 4 Winding connection : Star Insulation system : Class F Cooling system : Self-ventilation Protection type : IP20 Rating : Continuous - NOTE - Continuous Duty Rating : The generating set is designed for continuous operation under normal load conditions with an overload capacity (110% of rating capacity) up to the standby rating for intermittent periods

4 4.2 Diesel Engine Maker & Model : ISUZU 6UZ1 Type : 4 cycle, water cooled diesel engine, direct injection, turbocharged with air to air inter cooled Rated output : 203 kw, 1500 min -1 No. of cylinders : 6L Bore stroke : 120 mm 145 mm Total displacement : L Direction of rotation : Clockwise (viewed from the fan side) Governor : Electronic governor Cooling system : Water cooling by radiator with fan Air cleaner : Dry paper element type Lubricating system : Gear pump Starting motor : 24 V 5.5 kw Charging generator : 24 V 50 A Battery : 12V-150Ah (145G51) 2 Lubricating oil : API service class CD or higher Fuel : Diesel fuel (ASTM No.2 or equivalent) - NOTE - Rated Output is in accordance with ISO standard ambient conditions. 4.3 Voltage Regulation The voltage regulation from rated load to no load under a rated power factor shall be with in ±0.5 % of rated voltage. 4.4 Speed Regulation The speed regulation from rated load to no load under a rated power factor shall be with in 5 % of rated speed. 4.5 Limits of Temperature Limits of temperature rise of the generator shall be in accordance with relevant IEC34-1 standards, based on ambient temperature not exceeding 40, and shall not exceed the following: Armature windings Field windings Insulation class F Insulation class F - 3 -

5 4.6 Dielectric Strength Test The strength of the windings of the generator and control box shall meet the specifications of the high voltage test according to IEC 34-1 standards: Armature windings - Grounding AC 1760V (one minute) Field windings - Grounding AC 1500V (one minute) Control box - Grounding AC 1500V (one minute) 4.7 Sound Power Level Guaranteed sound LwA 94 db The LwA is the measurement of machine noise level as per European regulations. (The Directive 2000/14/EC requires that the manufacturer marks the machine specifying the Guaranteed sound power level.) [For reference: 64 db(a) at 7 meters from machine (No load, Average value in 4 directions.)] 4.8 Dimension Length Width Height : approx mm : approx mm : approx mm 4.9 Weight Dry weight Total weight : approx kg : approx kg - 4 -

6 5. INSTRUMENT PANEL AND SYSTEM 5.1 Generator Control Panel The following meters and apparatus are mounted on the control panel: Frequency meter AC Ammeter Ammeter change-over switch AC Voltmeter Voltage regulator Circuit breaker (3-Phase molded case circuit breaker) Earth leakage relay Panel light switch Panel light Over current relay (in the control box) 5.2 Engine Control Panel The following meters, gauges and other control equipment are mounted on the panel: Engine Indicator Engine speed / Oil pressure / Water temp. / Battery charging voltage / Integrating time Fuel level indicator Warning lamp (Low lubricating oil pressure, High water temp, Air element blinding, Over speed, Fuel level failure) Starter switch Preheat lamp Battery switch Local-remote change-over switch(in the control box) Isochronous-Droop change-over switch(in the control box) 5.3 Output Terminal Output terminal (3-Phase 4-wires) PE earthing terminal Terminal block (for remote control) - 5 -

7 5.4 Safety Controls The generating set shall be equipped with automatic safety controls which will shut down the engine in the event of any abnormal condition, such as : Engine shut down Circuit breaker will trip Warning lamp Side door open - - Emergency stop Button Low lubricating oil pressure High jacket water temp. Over current of Generator Earth leakage - Over speed - Fuel level failure Air element Blinding - - Mark : Operate Mark -: Not operate 6. CAPACITY Cooling water capacity : approx. 54 L Lube oil capacity : approx. 41 L Fuel tank capacity : approx. 460 L Environment tank capacity : approx. 685 L 7. ATTACHMENT Parts list Instruction manual Instruction manual (Engine) Cancellation connector 8. COATING The color of the generator proper and the engine shall be the manufacturer's standard colors, and that of the bonnet shall be Munsell No.4.8Y9.2/0.5, and N