DRS Technologies Masthead 

137-01B

Helicopter Starter
137-01B


A DC rectifier power supply providing the high short-term currents necessary for helicopter starting. Also serves as a power conditioner to eliminate onboard surges, spikes and transients.

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FEATURES
  • Mean time between failures (MTBF) – 40,000 hours
  • Interleaved parallel operation of DC-DC converters
  • Ability to load share among multiple units
  • Monitoring of the RPS using digital signal processing implemented on an embedded microprocessor platform
  • Use of insulated gate bipolar transistors (IGBT) as power switching devices

Input
Applicable standardsMIL-STD-1399, Section 300
Voltage440 VAC nominal, 3 phase
Frequency60 Hz nominal
Output
Applicable standardMIL-P-15736D, MIL-P-15736/5
Voltage28 VDC
Continuous Current Rating 300 A
Efficiency80% at rated load
Environmental
Operating Temperature
0°C to 50°C / 32°F to 122°F
Humidityup to 95%
EMI/EMC MIL-STD-461D
VibrationMIL-STD-167-1, Type 1, 4 Hz to 33 Hz
Shock ResistanceMIL-S-901D, Grade A, Class I, Type A
Airborne noiseMIL-STD-740-1, Grade B
Cooling MethodForced air convection
Dimensions
(LXWXH Inches)24.1 x 22.6 x 36.8
(LXWXH MM) 613 x 574 x 935
Weight (Inclusive of Batteries)
(LBS. Max)639 lbs
(KGS. Max)290 kgs
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