Product Description
Regulator structure can be divided into the main body, cooling oil
tank and drive control.
- Like a wound-type asynchronous motor, its main body consists of the
stator, wound rotor and panel, and base, which is installed
vertically. The winding of the regulator is generally as follows:
double-layer short-pitch stack winding is used for three-phase and
single-layer concentric type winding is used for single phase.
- Drive control is divided into two types: electric or manual. The
manual type is only for 10 kVA or less. There are clear "Voltage
increase" and "Voltage decrease" rotation direction signs.
- Electric and manual-electric dual-use drive devices are composed of
two pairs of worm gear, worm, clutch (Flat gear), hand wheel, drive
motor (Servo motor is the standard three-phase asynchronous motor),
travel switch (Limiter), stopper and other components. The first
pair of worm and worm gear is connected with the drive motor via
the elastic coupling, to reduce the motor speed and to drive the
second pair of worm gear and worm. For electric drive, the button
on the remote control device is generally used to control the
positive and reverse rotation of the motor on the voltage
regulator, hereby changing the load voltage on the voltage
regulator. The handwheel drive is connected with the second pair of
worms by means of a flat gear and a long key. Handwheel drive is
often used to fine adjust the voltage or to ensure the normal
adjustment of voltage of regulator in case of failure of the drive
motor. When the handwheel drive shifts to the electric drive or
vice versa, the clutch (Flat gear) can be pushed into the coupling
mechanism for this. The travel switch is used to automatically cut
off the motor power when the load voltage of the regulator is
limited at the upper or lower limit; the stopper is used to prevent
the rotation of the rotor within the required mechanical angle. To
prevent overload or short circuit at the load end, as the
transmission control mechanism is easy to be damaged, the safety
bolt is provided, to cut the control mechanism in case of overload
or short circuit.
- Manual drive device consists of a worm gear, worm, hand wheel,
stopper and other components. To adjust the load voltage of the
regulator, the hand wheel is turned to drive the worm gear and
worm, to achieve the purpose of voltage regulation. The stopper is
only used to limit the rotation of the rotor within the specified
mechanical angle.
- The cooling oil tank of the regulator is similar with that of the
general power transformer.
- There are oiler and temperature measurement devices on the panel.
Technical Parameters
Capacity: 50~2000kVA
Input voltage: 380V
Output voltage: 0~650V
Frequency: 50Hz
Effective: 96%
Dielectric strength: 2000V/60S<10mA
Overload capacity: >125%----120min,>150%----60min
Insulation resistance: >20MΩ
Environment temperature: -25℃~+40℃
Relative humidity: <95%
Temperature rise:< 55℃
Noise level:< 85dB