GT60PCH8ATV

GT60PCH8ATV in the APA-50M ground power unit

GT60PCH8ATV is a three-phase AC generator used in the APA-50M mobile ground power unit. Its function is to produce the three-phase supply delivered from the ground unit to aircraft electrical consumers. This is a documented ground-equipment installation, not a statement that the generator itself is mounted on every aircraft served by the APA-50M. The full ATV suffix identifies the listed execution.

Power, voltage and shaft speed

The catalogue operating point is 60 kVA, 208 V, approximately 167 A and 400 Hz at 8,000 rpm, with a power factor of 0.85. Apparent power in kVA differs from active power in kW. The nominal shaft speed also distinguishes this machine from the 6,000 rpm GT60PCH6A. Similar power ratings therefore do not describe the same mechanical drive requirement or establish that these two executions are interchangeable.

GT60PCH8ATV and the generating channel

The APA-50M three-phase generating channel includes the generator, a BRN-208M7A voltage regulator and a BZU-376SB protection/control unit. Regulation supports the required output voltage, while protection and switching equipment supervise connection to the load. The drive supplies mechanical energy and maintains the operating speed needed for the electrical frequency. These are separate functions within the complete ground power installation.

Other electrical sources in the APA-50M

The APA-50M arrangement also includes GAO-36 DC machines and an SGO-30U single-phase generator. They serve other electrical outputs of the ground unit, whereas GT60PCH8ATV supplies its three-phase AC channel. The presence of several machines explains why the ground unit's complete electrical capability cannot be assigned to this one generator. Likewise, a particular aircraft's external power connection does not identify an onboard generator model.

Mechanical data and related equipment

Recorded catalogue mechanical data give dimensions of 492 × 400 × 320 mm and a maximum mass of 60 kg. The complete designation remains GT60PCH8ATV, including the execution letters. Other generators and starter-generators cover different electrical outputs and drive arrangements. The neutral ground support equipment overview explains the role of external aircraft electrical supplies.

Machine type: Three-phase AC generator
Documented equipment: APA-50M mobile ground power unit
Function in APA-50M: Three-phase external aircraft electrical supply
Rated apparent power: 60 kVA
Rated line voltage: 208 V
Rated current: Approximately 167 A
Rated frequency: 400 Hz
Rated shaft speed: 8,000 rpm
Power factor: 0.85
Maximum mass: 60 kg
Overall dimensions: 492 × 400 × 320 mm
Voltage regulator in APA-50M: BRN-208M7A
Protection/control unit in APA-50M: BZU-376SB
Other generator types in APA-50M: GAO-36 for DC; SGO-30U for single-phase AC

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