The engine-generator DG-3TA (DG3TA, DG 3 TA, DG-3-TA, DG 3TA, DG3-TA, DG3 TA)
The engine-generator DG-3TA hollow aluminum rotor is used in automatic control systems.
The engine-generator is a unit consisting of the motor and tachometer. Currently, there are domain walls, which include motor and tacho DC, two-phase asynchronous motor controlled and tacho DC, asynchronous motor and tacho, controlled two-phase induction motor and synchronous tacho.
The unit may also include a reducer. In some cases, devices engine-generator DG-3TA supplied interchangeable gearboxes with different ratios.
For accurate calculating devices used tach AT AC consisting of TGA to the linearity of the output characteristics of 0.05% -0.1% and the residual emf-15mV 50mV, and managed a two-phase motor.
For tracking systems with tachometer feedback and DC precision integrating DC drives are used DW, containing two-phase asynchronous motors are controlled and TGP.
Tracking systems for the low accuracy of instruments motor generators DG-3TA, consisting of TGA and asynchronous two-phase motor with hollow rotors.The linearity of the output characteristic of the domain wall about 1%, the residual emf-100mV 200mV.
The unit motor-generator DG-3TA designed for operation under conditions of high hardness, specific to the products of aviation technology.
Technical characteristics of the devices engine-generator DG-3TA:
Maximum net power - 3W;
Static friction torque - 80 ∙ ∙ 10 -4 N m;
Speed at no load - 8000ob/min;
Starting torque unit motor-generator DG-3TA:
- Excitation - 0.7 A;
- Control - 0.47 A;
The total current of the generator - 0.1 A;
Pick-up voltage device engine-generator DG-3TA - 0.5;
Electrical time constant - 0.05;
Efficiency - 22%;
Impedance winding engine control unit motor-generator DG-3TA - 35 ohms + j60 Ohm
The steepness of the output characteristic - 0.75 mV / V / min;
Residual EMF - 0.1;
The ratio of the variable component of the residual emf to the steepness of the unit motor-generator DG-3TA - 0.03 V;
The moment of inertia of the rotor - 0,05 ∙ 10 -6 kg ∙ m 2;
The output impedance of the generator - 290 + j450 ohms;
Phase error - 30ugl.grad;
Shock - 120m / s 2;
Ambient temperature - from -60 ° C to +100 º C;
The relative humidity at 20 ° C - 98%;
Warranty life unit motor-generator DG-3TA - 250 hours;
Dimensions of the unit:
- Diameter - 49mm;
- Length - 104mm;
Weight of the device engine-generator DG-3TA - 0.54 kg;
The manufacturer guarantees the quality of the unit motor-generator DG-3TA technical requirements specifications, subject to the consumer the terms and conditions of storage, transportation, installation, operation, established specifications and operational documents.