Integrated Services and Consultancy

(An ESA Group Associate)
#37, Second Floor, “Embedded Home”,
36th Cross, II Block, Rajajinagar
Bengaluru-560010,
Karnataka,India

Pratibha Gopalam
Executive Director
98454 03264

BANGALORE
Santanu Chatterjee, DGM-Sales
97313 78934

HYDERABAD
A V Gopalakrishna, Sr Engineer Sales-TMI
90082 96566

CHENNAI
Senthil Kumar, Manager-Sales
75500 76300

PUNE
Amol Kadu, Sales Manager-TMI
98450 44338

KOLKATA
Arun Roy, Manager-Sales
98305 78843

DELHI
Gaurav Rohilla, Sales Executive
72040 74949

VADODARA
Jaimin Shah, Application Engineer
73488 51143

Phone No.
080-67648888, 080-67648836

Sales

Email: sales@isc4esaindia.com

Support

Email: support@isc4esaindia.com

Email: service@isc4esaindia.com

Elektro-Automatik

Elektro-Automatik Avionics Solution

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For demanding inspection and test procedures

Aircraft electronics and other electrically-powered equipment aboard an aircraft are subject to some of most extreme power conditions. To ensure that avionics will operate reliably once in the air, they are subjected to a wide variety of tests that prove their ability to withstand over-and under-voltage conditions, power dropouts, and voltage transients. MIL-STD-704, ‘Aircraft Electric Power Characteristics’, establishes the requirements and characteristics of aircraft electric power, while MIL-HDBK-704-7 and MIL-HDBK-704-8 describe the test methods and procedures for equipment designed to operate from 270 VDC and 28 VDC power, respectively.

Elektro-Automatik’s line of DC power supplies, electronic loads and bidirectional power supplies have features that will put today’s avionics to the test and still meet future needs. EA’s PSI, EL, ELR and PSB product series can provide up to 2000V, have autoranging and on-board arbitrary waveform and function generation. This flexibility allows EA to produce or sink power needed to simulate real world conditions and ensure that avionics and airborne equipment will continue operate even in the most adverse conditions.

Products Used in Aviation

Bidirectional DC Programmable Power Supplies	Programmable DC Power Supplies	Programmable DC Electronic Loads (Coventional and Regenerative)
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Application Solutions

MIL-HDBK-704-7 270 VDC Power Interrupt

One of the test procedures called out by MIL-HDBK-704-7, “Guidance for Test Procedures for Demonstration of Utilization Equipment Compliance to Aircraft Electrical Power Characteristics, 270 VDC,” is the Power Interrupt Test, Method HDC201. This test procedure is used to verify that 270 volt DC power utilization equipment operates and maintains specified performance when subjected to power interrupts.

To conduct this test, the appropriate input voltage (nominal, low, or high) is first applied to the equipment, the

EA Advantages:

Output voltage up to 2000V
Power output up to 30 kW
High power Density
Digital control
Low EMC
Industry experience

equipment is verified to ensure that it meets performance specifications. Next, the power is turned off for 50 ms and then restored, after which the equipment is tested again to ensure that it meets performance specifications. EA’s line of DC power supplies with auto-ranging capability can meet these demanding requirements. EA offers DC power supplies that can supply up to 15 kW, with very low EMC emissions and galvanically isolated USB, Ethernet/LAN or GPIB interfaces to meet the requirements for automated avionics testing.

Ea Elektroautomatik Grafik Power Interrupt

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MIL-HDBK-704-8 28 VDC Normal Voltage Transients

Among the tests described by MIL-HDBK-704-8, “Guidance for Test Procedures for Demonstration of Utilization Equipment Compliance to Aircraft Electrical Power Characteristics, 28 VDC,” is the Normal Voltage Transients Test, Method LDC105. This test procedure is used to verify that 28 volt DC power utilization equipment operates and maintains specified performance when subjected to normal voltage transients.

During this test, the power supply must output voltage transients up to 70 VDC, and after being subjected to

EA Advantages:

Power output up to 30 kW
High power Density
Arbitrary waveform and function generator
Digital control interface
Low EMC
Industry experience

the voltage transients, the equipment is tested to ensure that it meets performance specifications. EA’s line of DC power supplies can meet these demanding requirements with a built-in function generator that can generate these transients. EA offers DC power supplies that can supply up to 15 kW, with very low EMC emissions and galvanically isolatedUSB, Ethernet/LAN or GPIB interfaces to meet the requirements for automated avionics testing.

Ea Elektroautomatik Power Interrupt

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