Hydraulic Elevator Main Equipments
Our company projects use electronically controlled power units.
Because of electronic control;
Greater tolerance of oil heat,
Lower energy costs and power capacity,
By keeping the short-shifting, shortening the total travel time.
Increasing the speed of landing without additional cost and compromising the concession to 50%
Compensation of load and temperature changes can easily be achieved.
Power Unit Accessories
The pulsation damper
High pressure relief valve
High pressure switch
Low pressure switch
PTC – High temperature control (thermistor)
Emergency lowering valve
Oil level control
In order to reduce the inrush current and to prevent the voltage drop in the hydraulic elevator drives, the motor starter can be realized by star / delta connection.
However, the star / delta connection does not show the effect obtained in industrial motors, hydraulic elevator motors operating in oil. In the triangular transition, engine revolutions, flywheels and the oil that they work in are significantly reduced due to frictional resistance and bring a demurrage current close to pole lift.
The star / triangle connection with the contactors also causes short-time high current peaks electrically. Current peaks can also damage other electronic circuits used in the control system.
A mechanical product, the contactor has a limited lifetime, is noisy and requires periodic maintenance.
In our high capacity elevators, which require large drive motors, the engine is carried out with the electronic Softstarter. The electronic softstarter power-unit is mounted in place of the terminal box and prevents all the negativity of the contactors in use.