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ADT-20 Motor-tacho WT-20.


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The motor-tacho ADT-20 (ADT20, ADT 20)
The motor-tacho ADT-20 is designed for automatic systems, such as low-power drive transformer for remote transmission angle with selsyns and rotating transformers.
Designed as a two-phase induction motor with a hollow rotor bezobmotochnym.
One of the phases is the field winding, the second - the control winding, which signal that sets the direction and speed.
The motor-tacho ADT-20 is the same engine with an optional built-in induction tachometer, a signal which can be used for speed feedback in the control circuit.
Specifications electric appliances ADT-20:
Frequency - 400 Hz;
The excitation voltage - 40V;
Voltage control device electric motor-tacho ADT-20 - 24;
Pick-up voltage - 0.6 V;
Rated power - 0.3 W;
Starting torque motor-tacho unit ADT-20 - 13Gsm;
No-load speed - 5500ob/min;
Moment of inertia - 0.8 gsm ∙ ∙ s 2 10 -4;
Electromechanical time constant of the motor unit WT-20 - 31ms;
Efficiency - 6%;
The excitation voltage - 24V;
Input impedance instrument motor-tacho ADT-20 - 310 ohms;
Nonlinearity of the output characteristic - 0.20;
The steepness of the EMF - 0.3 mV / V / min;
Residual emf motor-tacho unit ADT-20 - 20mV;
Phase EMF --10grad;
Power Consumption - 1.7 W;
Output impedance - 310 ohms;
Dimensions instrument ADT-20 motor-tacho:
- Case diameter - 20mm;
- The length of the output shaft ends - 62.5 mm;
Unit weight motor-tacho ADT-20 - 0.07 kg.

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