WHAT IS A LIQUID RHEOSTAT ?
Main advantages and applications of Arecheta Rheostats
It 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.
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
Main advantages:
Motor protection, without overheating, no current peaks, and smooth progressive torque
Isometric disposition of phases
Water flow through the electrodes
Versatility, adjustment of ohmic resistance for a variety of motors
Simplicity, easy installation an maintenance
