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Thyristor revolution-rate controllers

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Sunday, 06 April 2008
The DRS revolution rate controller external view
The DRS revolution rate controller external view
Control cabinet and power cabinet
Control cabinet and power cabinet
The DRS thyristor revolution-rate controller
The DRS thyristor revolution-rate controller

The thyristor revolution-rate controller of the current-limiting reactor electric drive (DRS) is designed to reduce the rotation rate of machinery equipped with the phase-wound rotor induction motor and current-limiting reactors in oder to limit currents at starting and braking.

22-kWt electric motor mechanic characteristic
22-kWt electric motor mechanic characteristic
The revolution-rate controller ensures smooth or stepped adjustment of the revolution rate (adjustment depends on the power supply at the customer's plant).

The revolution-rate controller paired withthe starting reactor is designed to be used with new adjustable electric drives or as a substitute for resistor-and-relay cabinets in the rotor circuit of the modernized electric drives.

The revolution-rate adjustment range, not less than 5.

The revolution-rate controller is available in two versions:

  • single-unit
  • two-unit

The revolution-rate controllers are designed to operate at:

  • Temperature from 40°C below zero to 45°C above zero
  • Relative humidity not exceeding 98% (according to U2 Operational Conditions of GOST 15150-69)

The revolution-rate controllers can be installed in locations mechanically vibrating at 0.1 to 100 HZ as well as at acceleration of up to 20 m/s2  (M25 by GOST 17516.1-90).

Duty raio 60%.

The DRS operate exclusively with the DDP reactor in the rotor circuit.

Technical data

  DRS-11-1 DRS-30-1
Motor's power, kWt up to 11 up to 30
Reactor phase amperage, not exceeding, A 50 125
Number of activations per hour Not limited Not limited
Nominal system voltage at the rotor rings, not exceeding, V 360
Dimensions, Fig.A, mm 500х455х175 500х455х175
Mass, kg 14 16

 

  DRS-11-2 DRS-30-2 DRS-60-2 DRS-160-2
Motor's power, kWt До 11 До 30 До 60 До 160
Reactor phase amperage, not exceeding, A 50 125 200 315
Number of activations per hour Not limited Not limited Up to 250 Up to 200
Nominal system voltage at the rotor rings, not exceeding, V 360
Dimensions, Fig.B, mm Control unit 385х480х140
Power unit 390х350х235 480х400х235 Depending on the location and cooling method of the power unit
Mass, kg Power unit 17 25
Control unit 12
Last Updated ( Thursday, 22 May 2008 )
 
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