Product Overview
The Aircraft Alternator Test System primarily consists of a main control cabinet, power unit, DC load bank, test cables, aircraft alternator, and alternator regulator. It is mainly used to perform performance testing of the JF-12 type alternator and excitation system, as well as to check the operational conditions of the supporting equipment.
Main Features
- The JF-12 generator provides different power outputs based on the cooling method: it outputs 5A current under self-ventilation and increases to 10A current under forced ventilation.
- During operation, it ensures stable voltage, reliable parallel operation, and protection against reverse current and prolonged overload, while also reducing radio interference.
- The generator adopts a separately excited system, where the main control cabinet supplies DC voltage to excite the alternator.
- It offers flexible installation positions, supporting horizontal, inclined, and vertical orientations.
Technical Specification
| Parameter Name | Cooling Method | |
| "forced air circulation" | "Spontaneous ventilation" | |
| Rated current (Amps) | 10 | 5 |
| Rated voltage (Volts) | 115V/400HZ | 115 V/400HZ |
| Rated rotation speed (rpm) | 4000 | 4000 |
| Excitation voltage (Volts) | 7.89V | 7.89V |
| Operative Condition | Continuous | Continuous |
| Allowed Overload Current (Amps) | 20 | 10 |
| Overload Duration (Minutes) | 2 | 2 |
| The excitation current under hot conditions at 4000 rpm, 115 volts, and rated current should not exceed (Amps). |
20 |
20 |
| Required Amount of Unheated Air for "Forced Ventilation" | Not less than 30 liters per second under normal atmospheric pressure | |
| Maximum permissible temperature rise of the generator assembly
Commutator
Excitation Winding Armature Winding |
75
55
75 |
120
105
120 |