PowerGuard 400/115 VAC AC-AC Military Inverter – Uninterrupted and Reliable Energy

PowerGuard 400/115 VAC AC-AC military inverter is designed by TEDEG Defence to deliver high-reliability power conversion for defence platforms, mobile field operations and critical infrastructure in a single rugged platform. It converts 3-phase 400 VAC 50/60 Hz input power into the 3-phase 115 VAC 50 Hz output required by military avionics and special-purpose motor equipment, while supplying simultaneous loads through four independent outputs with a total capacity of 10 kVA.

With MIL-STD-1399B technical standard compliance, MIL-STD-810G environmental durability and MIL-STD-461G EMI/EMC design criteria, PowerGuard provides stable and secure energy from forward operating bases to data centres, test laboratories and mobile command-control vehicles. Developed with local TEDEG engineering capability, PowerGuard stands out with high energy efficiency (>= 85%), an advanced protection architecture and Ethernet-based remote monitoring and control.

Product Overview

PowerGuard 400/115 VAC is a military static inverter that meets the power-conversion needs of modern defence platforms and industrial critical systems in one enclosure. Its rugged metal cabinet, dedicated colour-coded controls, dual OLED information/fault screens and Ethernet-based remote management interface provide a practical operating experience in the field.

The galvanically isolated output transformer separates the load side from grid noise, transient overvoltage and phase imbalance. This is essential for sensitive calibration equipment, military electronics, avionics benches and data-centre backup power chains where measurement accuracy and equipment lifetime matter.

Who Chooses PowerGuard?

• Defence industry integrators and prime contractors
• Military procurement units and technical service teams
• Aviation and naval avionics test centres
• Mobile command-control and communication vehicle manufacturers
• Data-centre and telecom infrastructure operators
• Test and calibration laboratories
• Emergency, disaster-management and critical-facility teams

7 Key Advantages of PowerGuard

1. Full Military Standard Compliance

PowerGuard is engineered and tested around MIL-STD-1399B, MIL-STD-810G and MIL-STD-461G requirements, making it a true defence-grade power system rather than a conventional AC-AC converter.

2. 10 kVA Total Capacity and 4 Independent Outputs

Different load profiles can be supplied simultaneously from one device: a 3.6 kVA 3-phase main output, a 2.4 kVA 3-phase output and two 2 kVA 2-phase auxiliary outputs.

3. High Overload Endurance

The unit sustains 125% load for 5 minutes, 200% for 5 seconds and 250% instantaneous load for 1 second at 0.8 power factor, supporting motor starts and short transient demands.

4. Galvanic Isolation with Output Transformer

The isolation transformer prevents harmonics, impulses and common-mode noise from being transferred to sensitive loads, improving measurement accuracy and equipment life.

5. Three-Layer Protection Architecture

Overload, short-circuit and over-temperature events are detected and logged through the OLED fault display and Ethernet-based remote interface.

6. Ethernet Remote Monitoring and Control

Through the KN6 Ethernet port, operators can monitor phase voltages, currents, output status and fault records in real time while controlling outputs remotely.

7. Mechanical Structure for Field Conditions

The 160 kg rugged metal enclosure includes steel hinges, locked doors, lifting points, emergency stop, high-voltage labels and ventilation louvers for field-safe operation.

Applications

• Forward operating base and military camp power supply
• Mobile command-control vehicles
• Special military motors for defence and aviation platforms
• Field maintenance workshops and calibration benches
• Helicopter and land-vehicle ground support equipment (GSE)
• Test and calibration laboratories
• Heavy industry and automation systems
• Imported 115 VAC machinery operated from local 400 VAC infrastructure
• Data centres, telecom sites and emergency response zones

Mechanical Features and Dimensions

PowerGuard is designed for ergonomic field transport and installation. The front face includes OLED information and fault displays, colour-coded output controls, an emergency stop button, high-voltage warning labels and the TEDEG product label. Side and rear surfaces include ventilation louvers, connection covers and lifting/handling points.

Electrical Interface and Connector Scheme

• KN1 power input: CA3102E22-22PB (70A), R/S/T/N phases and PE body ground
• KN2 115 V 3-phase output 1: 24WE6SN, 3.6 kVA
• KN3 115 V 3-phase output 2: 24WE6SA, 2.4 kVA
• KN4 and KN5 115 V 2-phase outputs: 24WD5SN / 24WD5SA, 2 kVA + 2 kVA
• KN6 Ethernet communication: 24WC35SN with active Tx/Rx pairs and spare lines

Remote Monitoring and Control

PowerGuard provides remote observability as standard through the Transformer Ethernet Test and Monitoring software. Users can connect to the device IP, monitor R/S/T input voltages, L1/L2/L3 currents, output measurements and fault logs, and send unit-level on/off or emergency commands from the desktop interface.

Built-In Test (BIT)

The built-in test routine checks internal board health, sensor values and communication lines when required. Results are shown on the OLED fault display and can be transmitted as a fault list over Ethernet, reducing field troubleshooting time.

Efficiency and Energy Savings

With at least 85% efficiency, PowerGuard helps reduce generator fuel consumption and thermal load. Its isolated topology keeps reactive behaviour stable in generator island mode and grid-connected critical infrastructure.

PowerGuard 400 vs. Standard Industrial Isolation Transformer

Frequently Asked Questions

What does the PowerGuard 400/115 VAC AC-AC inverter do?

PowerGuard converts 3-phase 400 VAC 50/60 Hz grid or generator power into isolated 3-phase 115 VAC 50 Hz power required by military and special equipment.

Which military standards does it meet?

The unit is designed around MIL-STD-1399B, MIL-STD-810G and MIL-STD-461G requirements.

Can the device be switched on and off remotely?

Yes. Through the KN6 Ethernet port and desktop software, each output can be monitored and controlled independently.

Is it suitable for outdoor operation?

Yes. The product is designed for outdoor use and resistant to rain, splash, dust, humidity, vibration and shock according to the relevant environmental design targets.

Is it manufactured in Turkey?

Yes. PowerGuard is developed and manufactured by TEDEG Defence engineering teams in Ankara.

Request a Quote

Contact the TEDEG Defence sales team for technical consultation, project-specific configuration, quotation and delivery schedule information for the PowerGuard 400/115 VAC AC-AC military inverter.