Summary of Specifications:
2.1.1 Genset Requirements The generator set shall be Standby Duty rated at 400.0 ekW, 500.0 kVA, 1800 RPM, 0.8 power factor, 240 V, 3-Phase, 60 hertz, including radiator fan and all parasitic loads. Generator set shall be sized to operate at the specified load at a maximum ambient of 85F (29.4C) and altitude of 500.0 feet (152.4 m). Emergency Standby Power (ESP) as defined by the following: Typical Load Factor = 70% of ESP rating with variable load Typical Hours per Year = 50 hours Maximum Expected Usage = 200 hours/year Standby Rating as defined by the following: Typical Load Factor = 70% of standby power rating with variable load Typical Hours per Year = 200 hours Maximum Expected Usage = 500 hours/year 2.1.2 Material and Parts All materials and parts comprising the unit shall be new and unused. 2.1.3 Engine The engine shall be diesel fueled, four (4) cycle, water-cooled, while operating with nominal speed not exceeding 1800 RPM. The engine will utilize in-cylinder combustion technology, as required, to meet applicable EPA non-road mobile regulations and/or the EPA NSPS rule for stationary reciprocating compression ignition engines. Additionally, the engine shall comply with the State Emission regulations at the time of installation/commissioning. Actual engine emissions values must be in compliance with applicable EPA emissions standards per ISO 8178 ¡V D2 Emissions Cycle at specified ekW / bHP rating. Utilization of the ¡§Transition Program for Equipment Manufacturers¡¨ (also known as ¡§Flex Credits¡¨) to achieve EPA certification is not acceptable. The in-cylinder engine technology must not permit unfiltered exhaust gas to be introduced into the combustion cylinder. Emissions requirements / certifications of this package: EPA T3 2.1.3.1 Engine Governing The engine governor shall be a electronic Engine Control Module (ECM) with 24-volt DC Electric Actuator. The ECM shall be enclosed in an environmentally sealed, die-cast aluminum housing which isolates and protects electronic components from moisture and dirt contamination. Speed droop shall be adjustable from 0 (isochronous) to 10%, from no load to full rated load. Steady state frequency regulation shall be +/- 0.25%. Speed shall be sensed by a magnetic pickup off the engine flywheel ring gear. A provision for remote speed adjustment shall be included. The ECM shall adjust fuel delivery according to exhaust smoke, altitude and cold mode limits. In the event of a DC power loss, the forward acting actuator will move to the minimum fuel position. 2.2 Generator 2.2.1 Generator Specifications The synchronous generator shall be a single bearing, self-ventilated, drip-proof design in accordance with NEMA MG 1 and directly connected to the engine flywheel housing with a flex coupling. The generator shall meet performance class G3 of IEC. The excitation system shall be of brushless construction. 2.2.2 Voltage Regulator Digital Voltage Regulator The digital voltage regulator shall be microprocessor based with fully programmable operating and protection characteristics. The regulator shall maintain generator output voltage within +/- 0.25% for any constant load between no load and full load. The regulator shall be capable of sensing true RMS in three phases of alternator output voltage, or operating in single phase sensing mode. The voltage regulator shall include a VAR/Pf control feature as standard. The regulator shall provide an adjustable dual slope regulation characteristic in order to optimize voltage and frequency response for site conditions. The voltage regulator shall include standard the capability to provide generator paralleling with reactive droop compensation and reactive differential compensation. The voltage regulator shall communicate with the Generator Control Panel via a J1939 communication network with generator voltage adjustments made via the controller keypad. Additionally, the controller shall allow system parameter setup and monitoring, and provide fault alarm and shutdown information through the controller. A PC-based user interface shall be available to allow viewing and modifying operating parameters in a windows compatible environment. 2.2.3 Motor Starting Provide locked rotor motor starting capability of 880.0 skVA at 30% instantaneous voltage dip as defined per NEMA MG 1. Sustained voltage dip data is not acceptable. 2.3 Circuit Breaker 2.3.1 Circuit Breaker Specifications Provide a generator mounted 100% circuit breaker, molded case, Qty.(1) 1200 amp trip, 3 pole, NEMA 1/IP22. Breaker shall utilize a solid state trip unit. The breaker shall be UL/CSA Listed and connected to engine/generator safety shutdowns. Breaker shall be housed in an extension terminal box which is isolated from vibrations induced by the generator set. Mechanical type lugs, sized for the circuit breaker feeders shown on drawing, shall be supplied on the load side of breaker. 2.4 Controls ¡V Generator Set Mounted Provide a fully solid-state, microprocessor based, generator set control. The control panel shall be designed and built by the engine manufacturer. The control shall provide all operating, monitoring, and control functions for the generator set. The control panel shall provide real time digital communications to all engine and regulator controls via SAE J1939. 2.4.1 Environmental The generator set control shall be tested and certified to the following environmental conditions. 1. ¡V40¢XC to +70„aC Operating Range 2. 95% humidity non-condensing, 30„aC to 60„aC 3. IP22 protection 4. 5% salt spray, 48 hours, +38„aC, 36.8V system voltage 5. Sinusoidal vibration 4.3G's RMS, 24-1000Hz 6. Electromagnetic Capability (89/336/EEC, 91/368/EEC, 93/44/EEC, 93/68/EEC, BS EN 50081-2, 50082-2) 7. Shock: withstand 15G 2.4.2 Functional Requirements The following functionality shall be integral to the control panel. 1. The control shall include a 33 x 132 pixel, 24mm x 95mm, positive image, transflective LCD display with text based alarm/event descriptions. 2. Audible horn for alarm and shutdown with horn silence switch 3. Standard ISO labeling 4. Multiple language capability 5. Remote start/stop control 6. Local run/off/auto control integral to system microprocessor 7. Cooldown timer 8. Speed adjust 9. Lamp test 10. Push button emergency stop button 11. Voltage adjust 12. Voltage regulator V/Hz slope - adjustable 13. Password protected system programming 2.4.3 Digital Monitoring Capability The controls shall provide the following digital readouts for the engine and generator. All readings shall be indicated in either metric or English units Engine 1. Engine oil pressure 2. Engine oil temperature 3. Engine coolant temperature 4. Engine RPM 5. Battery volts Generator 1. Generator AC volts (Line to Line, Line to Neutral and Average) 2. Generator AC current (Avg and Per Phase) 3. Generator AC Frequency 4. Generator kW (Total and Per Phase) 5. Generator kVA (Total and Per Phase) 6. Generator kVAR (Total and Per Phase) 7. Power Factor (Avg and Per Phase) 8. Total kW-hr 9. Total kVAR-hr 10. % kW 11. % kVA 12. % kVAR Voltage Regulation 1. Excitation voltage 2. Excitation current 2.4.4 Alarms and Shutdowns The control shall monitor and provide alarm indication and subsequent shutdown for the following conditions. All alarms and shutdowns are accompanied by a time, date, and engine hour stamp that are stored by the control panel for first and last occurrence: Engine Alarm/Shutdown 1. Low oil pressure alarm/shutdown 2. High coolant temperature alarm/shutdown 3. Loss of coolant shutdown 4. Overspeed shutdown 5. Overcrank shutdown 6. Low coolant level alarm 7. Low fuel level alarm 8. Emergency stop depressed shutdown 9. Low coolant temperature alarm 10. Low battery voltage alarm 11. High battery voltage alarm 12. Control switch not in auto position alarm 13. Battery charger failure alarm Generator Alarm/Shutdown 1. Generator Over Voltage 2. Generator Under Voltage 3. Generator Over Frequency 4. Generator Under Frequency 5. Generator Reverse Power 6. Generator Overcurrent Voltage Regulation 1. Loss of excitation alarm/shutdown 2. Instantaneous over excitation alarm/shutdown 3. Time over excitation alarm/shutdown 4. Rotating diode failure 5. Loss of sensing 6. Loss of PMG 2.4.5 Inputs and Outputs Programmable Digital Inputs The Controller shall include the ability to accept six (6) digital input signals. The signals may be programmed for either high or low activation using programmable Normally Open or Normally Closed contacts. Digital Outputs The control shall include the ability to operate six (6) programmable relay output signals, integral to the controller. The output relays shall be rated for 2A @ 30VDC. Discrete Outputs The control shall include the ability to operate one (1) discrete outputs, integral to the controller, which are capable of sinking up to 300mA. 2.4.6 Maintenance All engine, voltage regulator, control panel and accessory units
