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Excitation Systems for Synchronous Motors and Low Power Generators

  • Excitation systems of the ST-SM and ST-SN series provide: 
    • automatic voltage regulation, manual regulation of the excitation current, regulation of the power factor and regulation of reactive power;
    • direct or reactor starting of engines;
    • start-up of generators using exact or self-synchronization;
    • protection of the synchronous machine;
    • issuing a signal to turn off the machine about the network in case of internal damage to the excitation system; 
    • performing logical operations during start-up and electric braking of hydrogenerators;
    • communication with the top level via the interface agreed with the customer.
  • Modern ST-SN excitation systems (for synchronous motors, motor-generator) and ST-SM (for synchronous turbo and low-power hydrogenerators up to 20 MW) with thyristor exciters of the new generation of type TV3, TV3DG, TV3G on thyristors of modular design with forced air cooling and microprocessor control system.

Dimensions of thyristor exciter (length x width x height) - 800 x 600 x 2200 mm

Parameters

Type of excitation system

Rectified current, A, nominal

Rectified voltage, V, nominal

СТ-СН-75/320

320

75

СТ-СН-115/320

115

СТ-СН-36/400

400

36

СТ-СН-38/400

48

СТ-СН-75/400

75

СТ-СН-115/400

115

СТ-СН-150/400

150

СТ-СН-230/400

230

СТ-СН-ДГ-230/400

230

СТ-СН-160/760 УХЛ4

760

100

СТ-СМ-75/320М

320

75

СТ-СМ-100/320

100

Types and composition:

Type of excitation system

Component types

Exciter

Transformer

СТ-СН-75/320

ТВЗ-320

ТСЗП-50/0,7ВУ3; 380 V; U2 = 84,4 V, I2 = 261,3 А

СТ-СН-115/320

ТСЗП-80/0,7ВУ3; 380 V; U2 = 135 V, I2 = 326,4 А

СТ-СН-36/400

  ТВЗ-400

ТСЗП-50/0,7ВУ3; 380 V; U2 =44,5 V, I2 = 648,73 А

СТ-СН-48/400

 ТСЗП-50/0,7ВУ3; 380 V; U2 = 44,5 V, I2 = 648,73 А

 СТ-СН-75/400

 ТСЗП-50/0,7ВУ3; 380 V; U2 = 84,4 V, I2 = 326,4 А

ТСЗП-80/0,7ВУ3; 380 V; U2 = 84,4 В, I2 = 514,1 А

 СТ-СН-115/400

 ТСЗП-80/0,7ВУ3; 380 V; U2 = 135 В, I2 = 326,4 А

 ТСЗП-125/0,7ВУ3; 380 V; U2 = 133,5 V, I2 = 514,1 А

 СТ-СН-150/400

 ТСЗП-250/10ВУЗ; 10 kV; U2 = 205 V, I2 = 652 А

ТСЗП-160/10ВУЗ; 10,5 kV; U2 = 193 V, I2 = 302 А

 СТ-СН-230/400

 ТСЗП-250/10ВУ3; 10,5 kV; U2 = 205 V, I2 = 652 А

ТСЗП-250/10ВУ3; 6,3 kV; U2 = 205 V, I2 = 652 А

 СТ-СН-ДГ-230/400

ТВЗДГ-400

ТСЗП-160/10ВУ3; 6,6 kV; U2 = 202 V, I2 = 375 А 

 СТ-СН-160/760 УХЛ4

ТВЗ-760 

ТСЗП-250/10ВУ3; 10,5 kV; U2 = 250 V, I2 = 800 А  

 СТ-СМ-75/320М

ТВЗГ-320М

ТСЗП-50/0,7ВУ3; 380 V; U2 = 75 V, I2 = 540 А 

 СТ-СМ-100/320

ТВЗГ-320

ТСЗП-160/10ВУ3; 6,3 kV; U2 = 260 V, I2 = 370 А 

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