400Hz 90kVA intermediate frequency power supply truck

The 400 Hz intermediate frequency power supply produced by our company utilizes our proprietary patented technology and employs high-frequency power electronic switching conversion technology. It is a 400 Hz intermediate frequency static variable frequency power supply specifically designed and manufactured for aviation and military electronic and electrical equipment; it can be applied to aircraft and airborne systems, radar, navigation systems, and other military electronic devices, as well as any application requiring a 400 Hz intermediate frequency power supply. This product represents an upgraded generation of modular variable frequency power supplies. The voltage and frequency of this product offer a regulation range of ±20%, making it suitable for both balanced and any unbalanced three-phase loads, as well as for use as a single-phase power supply. It is compatible with various types of loads—such as resistive, capacitive, and inductive loads—as well as all types of hybrid loads.

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Category: AC Power Supply Series

Product Features

Utilizes a dedicated SPWM chip, offering high control accuracy, excellent waveform quality, and compatibility with various loads.
IPM high-frequency static inverter: compact size, lightweight, low noise, high efficiency, and minimal susceptibility to external interference.
Microprocessor-controlled: output voltage and frequency are adjustable online; both operating and fault states are clearly visible at a glance.
Suitable for both three-phase balanced loads and any unbalanced loads; it can also be used as a single-phase power supply.
The operation features a digital LED display panel that is flexible and convenient to use, making it easier for you to operate with ease.
Can be used standalone or mounted in a 19-inch standard cabinet.

Technical Parameters

name of a part			90 kVA aviation ground power supply
capacity			90KVA
Circuit Configuration			IGBT/PWM (Pulse Width Modulation) method
AC Output (Standard sine wave)		Phase	Three-phase four-wire system, phase difference: 120° ± 2°
		voltage	Phase voltage: 0–150 V adjustable (line voltage: 0–260 V adjustable)
		frequency	Fixed frequency: 400 Hz; Variable frequency: 300–500 Hz (continuously adjustable)
frequency stability			Fixed frequency: ≤±0.01%; variable frequency: ≤±0.5%
Voltage Regulation Rate			≤1%
Load Stability			≤1%
degree of unbalancedness			Phase voltage <2% of the rated value; all three phases can be used independently.
Waveform distortion degree			≤3%
power factor			≥85%
reaction time			＜2ms
Adaptation load			No type restrictions; suitable for fully unbalanced loads.
Indication/Resolution			LED four-window digital display: frequency, voltage, current, power / power factor
protector			Equipped with no-fuse input and output; the electronic circuit rapidly detects overvoltage, overcurrent, overload, excessive temperature, and short circuits, automatically triggering protection and issuing an alarm.
noise			＜55dB
Insulating reactance			500 Vdc, ≥ 20 MΩ
Dielectric insulation			1500 VAC / 5 mA / 1 minute
cooling equipment			Forced fan cooling
service environment	working temperature		-10~35℃
	relative humidity		0–90% (non-condensing state)
	above sea level		1,500 meters