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MANUAL ELETRICO MOTOR CATERPILLAR
Tipologia: Esquemas
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Technical CATERPILLAR – 1000 kVA Page 1 Description UTILITY POWER MODULE
(optional equipment shown)
TABLE OF CONTENTS
Technical CATERPILLAR – 1000 kVA Page 4 Description UTILITY POWER MODULE
1. OVERVIEW
This specification describes the Caterpillar ®^ Utility Power Module. This module is rated for 400 V at 50 Hz producing 1000 kVA (800 EkW) or 480 V at 60 Hz producing 910 ekW. Included are: the Caterpillar C32 engine, the Caterpillar ®^ SR4B 693 frame generator, the Utility paralleling switchgear, a industry standard 20 foot (6 m) high-cube sound attenuated CSC certified container and a cooling system for 50°C ambient. The complete solution is fully tested at 60 and 50 Hz and delivered ready to operate. Its modes of operation are field configurable and include single or multiple island mode (up to 18 units) and single unit utility paralleling mode.
2. CATERPILLAR
C32 4-STROKE-DIESEL ENGINE
2.1. Specifications
V-12, 4-stroke-cycle Diesel Bore – mm (in)…………….……………..……...145 (5.7) Stroke – mm (in)……………………….….…….162 (6.4) Displacement – L (cu in)……….……..……..32.1 (1958) Aspiration……….Turbocharged – Air to air Aftercooled Fuel system: Electronic Ignition System Governor type: Electronic ADEM A
Fig. 2.1. C32 genset
Technical CATERPILLAR – 1000 kVA Page 5 Description UTILITY POWER MODULE
2.2. ADEM
® A4 Engine Controller
2.2.1. Introduction
The ADEM ®^ A4 is an integral part of the innovative ACERT ®^ Technology that provides higher degree of control over a large number of combustion variables than ever before The ADEM ®^ A4 engine system is composed of the ADEM®^ A4 ECM, control software, sensors, actuators, fuel injectors and interface to the generator system. The prime benefit of an ADEM®^ A4 engine system is to better control and maintain the particulate emissions, both steady state and transient, while improving engine performance. Advanced Features _ Isochronous or droop speed control _ Enhanced performance from fuel injection timing and limiting _ Adjustable monitoring of vital engine parameters _ Idle / rated speed setting _ Programmable speed acceleration ramp rate _ Adjustable cool down duration
2.2.2. Features
1 - General features
RELIABLE, DURABLE - All ADEM®^ A4 controllers are designed to survive the harshest environments. Environmentally sealed, die-cast aluminum housing isolates and protects electronic components from moisture and dirt contamination. Rigorous vibration testing ensures product reliability and durability. Accuracy maintained from -40° C to +85° C. Electrical noise immunity to 100 volts/meter. Internal circuits are designed to withstand shorts to +battery and –battery.
SIMPLE SERVICING –
SIMPLE SERVICING - Each ADEM®^ IV system works in combination with the Caterpillar ET service tool software to keep the engine operating at peak performance. _ Displays measured parameters _ Retrieves active and logged event codes documenting abnormal system operation
SELF-DIAGNOSTICS
Each ADEM®^ A4 ECM has a full compliment of self-diagnostics. The ECM can detect faults in the electrical system and report those faults to the service technician for quick repair. Self- diagnostic capability pinpoints operational problems in need of attention.
Technical CATERPILLAR – 1000 kVA Page 7 Description UTILITY POWER MODULE
ELECTRONIC SENSORS - The following sensing is available on the ADEM®^ IV controller: oil pressure, fuel pressure, fuel temperature, atmospheric pressure, air inlet temperature, turbo outlet pressure, engine coolant temperature, engine speed, throttle speed, droop position, exhaust temperature, engine control switch position, oil filter pressure differential, fuel filter pressure differential, air filter pressure differential, crankcase pressure, and remote e-stop switch position.
ELECTRONIC ACTUATORS - Electronic Unit Injectors are driven by the ECM. Actuators to control ether are optional.
2.2.4. ADEM ®^ A4 Specifications
Humidity: 0 to 90% relative humidity. Impervious to: salt spray, fuel, oil and oil additives, coolant, spray cleaners, chlorinated solvents, hydrogen sulfide and methane gas and dust. Input and output protection: all inputs and outputs are protected against short circuits to +battery and -battery Input voltage range (24 VDC nominal) 18 to 32 VDC. Mounting: engine mounted. Reverse: polarity protected. Shock: withstands 20 g Temperature range: o Operating: -40° C to 85° C (-40° F to 185° F) o Storage: -50° C to 120° C (-58° F to 248° F) Vibration: withstands 2.0 g at 18 to 500 Hz.
Fig. 2.2. ADEM®^ A4 main board
Technical CATERPILLAR – 1000 kVA Page 8 Description UTILITY POWER MODULE
3. CATERPILLAR
SR4B
693 FRAME GENERATOR
3.1. Specifications
Type: Revolving field, solid-state automatic voltage regulator. Construction: Two bearing close coupled – 693 frame 4 pole, three phase, wye connected. Insulation: Class H rated at class F. Enclosure: Drip proof IP 22, guarded. Overspeed capability: 150%. Waveform: Less than 5% deviation. Paralleling capability: Standard with adjustable voltage droop. Voltage regulator: 3-phase true RMS sensing with adjustable Volts-per-Hertz response. Voltage regulation: Less than ± 0.5%. Voltage gain: Adjustable to compensate for engine speed droop and line loss. THD: Less than 3%. TIF: Less than 50. Number of leads: 6 Excitation: Permanent magnet.
Fig. 3.1. SR4B Generator
Technical CATERPILLAR – 1000 kVA Page 10 Description UTILITY POWER MODULE
3.5. Caterpillar
® Digital Voltage Regulator
® (CDVR
® )
3.5.1. CDVR
® Description
The Caterpillar ®^ Digital Voltage Regulator (CDVR) is a microprocessor-based control designed to provide precise voltage control, robust transient response, and generator protection with industry leading features and versatility.
3.5.2. CDVR
® Features Microprocessor based control featuring choice of three control modes standard: o Automatic Voltage Regulation (AVR) o Power Factor Regulation (PF) o Reactive Power Regulation (Var) Programmable stability settings. Soft start control with an adjustable time setting in AVR control mode. Dual Slope Underfrequency (volts/hertz) regulation Three-phase or single-phase generator voltage (RMS) sensing/regulation in AVR mode Single-phase generator current sensing for regulation purposes Field current and field voltage sensing Five contact sensing inputs for system interface One common LED for visual indication of Alarm and Shutdown fault conditions Fault Shutdown Driver and Alarm Output Driver for indication of Alarm and Shutdown fault conditions Generator paralleling with reactive droop compensation and reactive differential compensation Line drop compensation UL 508A Recognized and CE certified Ten generator protective functions. o Generator Overvoltage o Generator Undervoltage o Loss of Excitation o Instantaneous Field Overcurrent o Over Excitation o Loss of Sensing o Diode Fault Monitor o Internal Watchdog Failure o Internal Memory Failure o Fault Reset Closed Too Long
Technical CATERPILLAR – 1000 kVA Page 11 Description UTILITY POWER MODULE
3.5.3. CDVR
® Specifications
General Specifications
Voltage regulation Temp. Drift Response Time Variable Sensing Range Control Power Regulator Filtering Harmonic Tolerance Weight
±0.25% no load to full load ±1.0% for a 40° C change Maximum of 10 milliseconds 90 to 600 Volts 24 Vdc Supply (18 to 30 Vdc, 5VA) THF 3% per IEC34-1 - TIF of 50 NEMA MG1-22. 0.5% Voltage regulation with 40% THD 1.47 kg (3.25 lb) Environmental
Operating Temperature Storage Temperature Relative Humidity Salt Spray Vibration Shock
–40° C to 70° C (–40° F to 158° F) –40° C to 85° C (–40° F to 185° F) 95% non-condensing 30° C to 60° C 5% for 48 hrs at 38° C at 115% nominal operating voltage 4.5G (peak) 18-2000 Hz in 3 perpendicular planes 20G Certifications CE Approved UL Recognized CSA Listed
Programmable Variables Adjustment Voltage vs. Frequency Characteristic Fine Voltage Level Droop Adjustment Overvoltage Setpoint Overvoltage Time Delay Undervoltage Setpoint Undervoltage Time Delay Gain Single Phase or Three Phase Sensing Under Frequency Point Knee Frequency Minimum Voltage Setpoint Var Operating Mode PF Operating Mode Line Drop (IR) Compensation Loss of Excitation Loss of Excitation Time Delay Over Excitation Time Delay — Fixed Time Option Loss of Sensing Time Delay Diode Fault Monitor Soft Start Function
Two slope ranges adjustable from 1 to 10 PU in 0.1 increments –10% to +10% in 0.1% increment 0 to 10% in 0.1% increment 105 to 135% of rated voltage in 1.0% increment 2 to 30 seconds in 1 second increments 60 to 95% of rated voltage in 1.0% increment 10 to 120 seconds in 1 second increments 1 to 20% in 0.1% increments
20 to 40 Hz 45 to 65 Hz in 0.1 Hz increments 50 to 100% of rated voltage 100% to –100% in 0.001 increments 0.6 lead to 0.6 lag in 0.01 increments 0 to 10% in 0.1% increment 0.1 to 1.0 PU leading vars 0.1 to 9.9 seconds in 0.1 second increments 0 to 12 Adc in 0.1 Adc increments 0 to 10 sec in 0.1 sec increments 0 to 25 sec in 1 sec increments 1 to 10A rms field ripple current 1 to 120 sec
Technical CATERPILLAR – 1000 kVA Page 13 Description UTILITY POWER MODULE
3.6. Technical data
3.6.1. 50 Hz - Caterpillar ®^ SR4B ®^ Generator 2628094
kW Rating: 800 Frequency 50 Power Factor: 0.80 Insulation H kVA Rating: 1000 Poles 4 Duty (C): 105 Excitation PM Frame: 693 Winding Type Random RPM: 1500 Leads 6 Volts: 400 Pitch 0. Bearings:^2 Phases^3 Conn. STAR Amperage 1443.
I. Efficiency Data
II. II. Reactance Data
Technical CATERPILLAR – 1000 kVA Page 14 Description UTILITY POWER MODULE
III. Time Constants (s)
IV. Mechanical Data
Technical CATERPILLAR – 1000 kVA Page 16 Description UTILITY POWER MODULE
IX. Short Circuit Curve 50 Hz
X. Air Gap Curve 50 Hz
Technical CATERPILLAR – 1000 kVA Page 17 Description UTILITY POWER MODULE
Reactive chart
3.6.2 60 Hz Technical Data - Caterpillar ®^ SR4B ®^ Generator 2628094
kW Rating: (^) 910 Frequency (^) 60
Power Factor: 0.80 Insulation H
kVA Rating:^1140 Poles^4 Duty (C): (^) 105 Excitation (^) PM
Frame: 693 Winding Type Random RPM: 1800 Leads 6 Volts: 480 Pitch 0. Bearings: (^) 2 Phases (^) 3
Conn. STAR Amperage 1416
Technical CATERPILLAR – 1000 kVA Page 19 Description UTILITY POWER MODULE
IV. Mechanical Data
V. Motor Starting 60 Hz
Technical CATERPILLAR – 1000 kVA Page 20 Description UTILITY POWER MODULE
VI Open Circuit Curve 60 Hz
VII. Short Circuit Curve 60 Hz
