IA-3, IA-4 SOFT STARTERS

Functions of IA-3, IA-4:

  • controlling electric drives of regulating valves;
  • softly starting an electric motor;
  • electrodynamically braking an electric motor.

Technical characteristics of IA-3:

  • capacity of controlled electric motors – from 3 to 15 kW;
  • range of operating ambient air temperatures – from +5 to +75 °С;
  • DU-О and DU-Z control commands are characterized by direct or pulsating voltage 24 V;
  • power supply of IA-3 – three-phase voltage 220/380 V.

Technical characteristics of IA-4:

  • capacity of controlled electric motors – from 0.06 to 3.5 kW;
  • range of operating ambient air temperatures – from +5 to +50 °С;
  • DU-О and DU-Z control commands are characterized by a range of direct or pulsating voltage from 18 to 34 V;
  • power supply of IA-4 – three-phase voltage 220/380 V.

Key charakteristics:

  • structural design (a remote device for wall or panel mounting) assures ease of installation and maintenance;
  • possibility of implementation of different variants of actuator control:
  • from local regulators;
  • from controllers of instrumentation and control systems;
  • from a console of a process operator (manually);
  • use of several modes of operation:
  • continuous;
  • short-term;
  • intermittent with frequency up to 630 activations per an hour.

Safety class – 3.
Safety category – В.
Protection degree IP 54.

Implementation facilities:

  • Khmelnitsky NPP
  • Zaporizhzhya NPP
  • Rivne NPP
  • South-Ukraine NPP
  • Balakovo NPP
  • Rostov NPP
  • Kursk NPP
  • Kozloduy NPP (Bulgaria)

 

SRPA “Impulse” is a leading Ukrainian designer, manufacturer, and supplier of highly-reliable instrumentation and control systems for nuclear power engineering and railways.
 
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