QX4 Series Vertical Type Wall-Mounted Star-Delta Starting Cabinet
Main functions and features
When the starting cabinet starts up the motor,the voltage being applied to stat or winding of each phase is reduced to 57. 7% of voltage in circuit,and the current is 1/3 of direct starting value, meanwhile, the starting torque is reduced to 1/3 of direct starting value. Working system of starting cabinet is interrupted continuous duty system or repetitious short-time duty system, operating frequency under repetitious short-time duty system is 30 times per hour,interval time of interrupted continuous duty system is 90s.
Main Technical data
Type | Power of Auto transformer (KW) |
Power of control motor(KW) |
Reference value of rated working current (A) |
Max starting time(S) |
Overall Dimension(CM) | ||
A | B | C | |||||
QX4-13 | 13 | 28 | 16 | 11 | 40 | 26 | 70 |
QX417 | 17 | 33 | 19 | 13 | 40 | 26 | 70 |
QX4-22 | 22 | 43 | 25 | 15 | 40 | 26 | 70 |
QX4-30 | 30 | 60 | 35 | 16 | 40 | 26 | 70 |
QX4-40 | 40 | 78 | 45 | 20 | 40 | 26 | 70 |
QX4-55 | 55 | 104 | 60 | 24 | 40 | 26 | 70 |
QX4-75 | 75 | 142 | 85 | 30 | 40 | 26 | 70 |
QX4-115 | 115 | 230 | 135 | 30 | 46 | 31 | 90 |
QX4-135 | 135 | 270 | 160 | 35 | 55 | 42 | 126 |
Application
QX4 series star-delta starting cabinet is applicable to three-phase squirrel cage motor of AC50HZ/380V with power up to 135KW,used for controlling the starting, running and stopping of switching from "star" to "delta"of motor stat or winding, protects the motor against overload or open-phase.
Scope of use and working conditions:
1. The altitude is not over 2,000 meters
2. The ambient medium temperature is not higher than + 40℃ and no less than-35℃
3. Relative air humidity is not greater than 85% (at 20℃± 5℃)
4. The amplitude shall not be greater than 0.5mm, and the frequency is not greater than 600 times per minute
5. The inclination with the vertical surface does not exceed 5 degrees
6. Places with rain-proof and snow equipment
7. Medium with explosive hazard and no condensation rotten metal and conductive dust
Main Technical data
Type | Power of Auto transformer (KW) |
Power of control motor(KW) |
Reference value of rated working current (A) |
Max starting time(S) |
Overall Dimension(CM) | ||
A | B | C | |||||
QX4-13 | 13 | 28 | 16 | 11 | 40 | 26 | 70 |
QX417 | 17 | 33 | 19 | 13 | 40 | 26 | 70 |
QX4-22 | 22 | 43 | 25 | 15 | 40 | 26 | 70 |
QX4-30 | 30 | 60 | 35 | 16 | 40 | 26 | 70 |
QX4-40 | 40 | 78 | 45 | 20 | 40 | 26 | 70 |
QX4-55 | 55 | 104 | 60 | 24 | 40 | 26 | 70 |
QX4-75 | 75 | 142 | 85 | 30 | 40 | 26 | 70 |
QX4-115 | 115 | 230 | 135 | 30 | 46 | 31 | 90 |
QX4-135 | 135 | 270 | 160 | 35 | 55 | 42 | 126 |