WHAT IS A LIQUID RHEOSTAT ?

Main advantages and applications of Arecheta Rheostats

Reostatos SumintecIt is an industrial equipment that produces a resistance variation to the electrical current between its phase terminals in a way that connected to a high power electrical motor it helps to get a soft starting because over current limits and increases torque rotation there of when connected to the rotor.

 

 

 

 

 

 

 

Suministros-Sumintec-01

In Arecheta rheostats , the main body consists of sheet steel inside and outside protected with coatings and paints antiálcalis . Their benches made ​​of sturdy metal profiles do not require anchors and have adequate accommodation for shots of land.The careful design of fixed and movable electrodes can extend the interface with the electrolyte, cooled by the constant renewal of the column liquid density difference and minimize the resistance during acceleration . A cabinet is attached to the main tank where the controls and protection of auxiliary elements are housed. Normativa: DIN VDE 0660, IEC 17B, Marcado CE, UNE 9-015, DIN 40050.

Material: Steel sheet with anti-alkaline coating
Electrolito: CO3K2 / CO3Na2
Shortcircuit mechanism: Contactor/Automatic System Short Circuit
Lifting mechanism: Electrics motor with: Transmission/pulleys
Tanks material: Polyester
Active DC component materials Silvered copper

The ARECHETA liquid rheostat has an alkaline solution as its resistance which is governed by the motor parameters and into which electrodes that have been specially designed to cope with the electrolysis effect are submerged.

The distance between the mobile and fixed electrodes, all of which are submerged in the alkaline medium, creates a variable resistance with upper and lower limits determined by the concentration of the solution.

When the application is a motor starter, upon start-up the distance between the electrodes (fixed and mobile) is at its maximum and gradually decreases until the distance is negligible, at which point the rheostat is bridged.

  • Conservative automatic level
  • Alarms and Indicators Level
  • End signal shorted
  • Automatic control and signaling distance between electrodes
  • thermostats
  • Space heater Heat Exchanger
  • Flow switch for cooling water
  • Battery cooling radiators
  • Removable metal cover

 

Reostato-Sumintec-04

Main advantages:

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Motor protection, without overheating, no current peaks, and smooth progressive torque

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Isometric disposition of phases

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Water flow through the electrodes

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Versatility, adjustment of ohmic resistance for a variety of motors

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Simplicity, easy installation an maintenance

 

 

Main applications

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Starts rotor induction motors with rings, a constant current or constant time

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Start stator of squirrel cage motors six accessible terminals

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Starting and service at constant current (mills, saws ...)

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Speed regulation by controlled rotor in c / co winding slide

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Launch of synchronous compensators.

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Start simultaneous two engines

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Power dissipation for load testing generators