Power Cart Requirements Doc_final_Redacted.pdf

10 June 2021

Power Cart/Frequency Converter

Statement of Work

For

704th Test Group/746th Test Squadron

1.0 PURPOSE

The 704th Test Group (704 TG) mission is to be the premier provider of unique test and evaluation capabilities relevant to tomorrow’s warfighter through world-class people improving technical excellence, cost-effectiveness, and agility. The 746th Test Squadron (746 TS) is assigned to the 704 TG. The 746 TS conducts Global Positioning System (GPS) denial and

Inertial Navigation System testing.

The 746 TS requires a mobile Power Cart Generator/Frequency Converter to simulate aircraft power to perform ground support equipment testing. The Power Cart/Frequency Converter converts a fixed frequency/voltage/ampere source (ground power) to a mutlti-voltage, multi-phase and multi-ampere source.

2.0 SCOPE

The Contractor shall deliver one Power Cart/Frequency Converter and meet the following requirements:

2.1 Standard features:

2.1.1 Indoor/Outdoor Use

2.1.2 Automatic Input Line Monitoring

2.1.3 Advanced Integrated Display, Touch Screen Panel-Color LCD ≥ 4 inches

2.1.4 8000 Event Log Built-In Maintenance Diagnostic System

2.1.5 RS232 and USB Port

2.1.6 RS 485 or ETHERNET Interface

2.1.7 100 ft Input Power Cable Plug Ready

2.1.8 60 ft AC Output Cable w/Safety Interlock and aircraft plug

2.1.9 60 ft DC Output Cable w safety interlock and aircraft plug

2.1.10 Cable Racks for Input and Output Cables

2.1.11 15% Automatic Line Drop Compensation

2.1.12 Emergency Power OFF Switch

2.1.13 18-inch Hazard Area Clearance

2.1.14 Input/Output Voltage, Current, and Frequency Monitoring

2.1.15 Elapsed Time Meters

2.1.16 Sleep Mode

2.1.17 Front Panel Voltage Adjust

2.1.18 Front Panel Summary Fault Indicators

2.1.19 Input High Voltage Transient Protections with Front Panel Preventative Mainenance

Indications

2.1.20 Output Current Limit Adjust

2.1.21 Input Safety Disconnect Contactor

2.1.22 Access Door Interlock

2.1.23 Output Safety Disconnect Contactor

2.1.24 Single DC Output Contactor

2.1.25 Trailer Mounted

2.1.26 Maintenance Free Tires

2.2 Standard Compliance:

2.2.1 1ISO 1540 Characteristics of Aircraft Electrical System

2.2.2 ISO 6858 Aircraft Ground Support Electrical Supplies

2.2.3 SAI ARP 5015 Ground Equipment 400 Hz Ground Power

2.2.4 MIL-STD-704F Aircraft Electric Power Characteristics

2.2.5 MIL-STD-1472 Human Engineering Design Criteria

2.2.6 DFS-400 Specification for 400Hz Aircraft Power Supply

2.3 Input Power Specifications:

2.3.1 Input Current Distortion - ≤ 3%

2.3.2 Voltage - 480 Volt, +10%, -15%, 3 φ, 3 wire plus ground

2.3.3 Frequency - 50/60 Hz ± 10%

2.3.4 Phase Rotation - Any

2.3.5 Input Current at Rated Load - 93 Amperes

2.3.6 Protection - Over/undervoltage, loss of phase, overcurrent, short circuit. Voltage transient protection IAW IEEE C62.41.1, location Cat. B/C

2.3.7 Inrush Current - No greater than 100% of full load current

2.4 Environmental Data:

2.4.1 Acoustical Noise - <65dBA max at 5 feet (1.5m)

2.4.2 Temperature Range - -40F to +130F

2.4.3 Relative Humidity - 10 - 95%

2.5 Energy Factors:

2.5.1 Efficiency - 94% at full load, 92% at half load

2.5.2 Energy Efficiency Ratio - 20.0 Typical

2.6 AC Output Power Specifications:

2.6.1 Power Rating - 90kVA

2.6.2 Voltage - 115V L-N, 3 φ, 400 Hz

2.6.3 Voltage Adjust - ± 15%

2.6.4 Overload - 100% Continuous, 110% for 1 Hour, 125% for 10 minutes, 150% for 2 minutes, 200% for 20 seconds

2.6.5 Voltage - 115/200 volts 3 phase, 4 wire, grounded neutral

2.6.6 Voltage Adjust - ± 15%

2.6.7 Voltage Regulation - ± 1.0 %

2.6.8 Current Output - 261 amperes

2.6.9 Frequency Regulation _ 400Hz ±0.01%

2.6.10 Phase Angle Regulation - ± 1°

2.6.11 Harmonic Distortion - ≤ 2.0%

2.6.12 Protection - Overload, short circuit, over/undervoltage, and safety disconnect

2.6.13 Automatic Line Drop Compensation - 15% internal adjustment

2.6.14 Phase Rotation - Clockwise sequence of Phase A-B-C

2.7 DC Output Power Specifications:

2.7.1 Output Current Rating 600 amperes continuous - 600 amperes continuous

2.7.2 Engine Start Capacity - 2000 amperes for 30 Seconds

2.7.3 Overload - 1000 amperes for 1 minute at 10% duty cycle

2.7.4 Voltage - 28 VDC, 2 Wire, grounded negative

2.7.5 Voltage Adjust - 28 VDC ±10%

2.7.6 Voltage Regulation - ± .5 %

2.7.7 Current Limit Adjust -150A

2.7.8 Protection -Overload, short circuit, over/undervoltage, safety disconnect

2.7.9 Automatic Line Drop Compensation - 15% internal adjustment

2.8 Mechanical and Environmental Specifications:

2.8.1 Indoor/Outdoor

2.8.2 Unit Mobile Mounted Configuration

2.8.3 Cooling Forced Convection

2.9 Warranty and Documentation:

2.9.1 Five (5) Years onsite parts and labor

2.9.2 Operational Maintenance Manual

3.0 MILESTONES

The Contractor shall deliver one Power Cart/Frequency Converter no later than 90 days ARO.

4.0 DELIVERABLES

The contractor shall deliver all hardware and documentation to 704 TSS/XPL, at 1644 Vandergrift Road, Building 1260, Holloman Air Force Base, New Mexico 88330.