● Professional development QK series submersible pump submersible pump control cabinet is the best supporting electronic control equipment .
● electrical components products applied carefully selected by the submersible pump parameters , and leave enough margin to ensure reliable operation of your device .
● Product protection function, the optional electronic motor protection, the action quickly and reliably to ensure the safe operation of your device .
● Auto products by pressure, time , level, pumps and other equipment automatic control functions , simplifying the operation of the equipment , to improve the efficiency of your work .
● via RS-485 serial communication interface ( user selectable ) , you can pump station , well group through a computer automated remote telemetry system , modern management.
● satisfied with the pre-sales technical consulting ( including special design ) and good service are always our commitment to quality assurance .
Control cabinet installation environment must meet the following requirements:
◆ Power supply: three-phase four -wire 380V, 50Hz, voltage tolerance -15% to +10 % ;
◆ Ambient temperature -5 ℃ ~ +40 ℃;
◆ Altitude ≤ 2000 m;
◆ Air monthly mean relative humidity ≤ 90% ( monthly average temperature is 25 ℃ ) ;
◆ environment without explosive medium , non-corrosive gases and damage the insulation of metal , non-conductive dust ;
◆ Vertical mounting slope ≤ 5 °.
QK □ □ ─ □ / □ □
┬ ┬ ┬ ┬ ┬ ┬
│ │ │ │ │ └ Other features Code A: one with a prepared T: Other
│ │ │ │ │ C: Computer Communications
| | | | └ ─ automatic function code Y: control of electrical contacts
│ │ │ │ P: drainage type level control
│ │ │ │ B: water -based liquid level control
│ │ │ │ S: Timing Control
│ │ │ │
│ │ │ └ ─ ─ ─ charged with motor power (KW)
│ │ └ ─ ─ ─ ─ ─ structure code ( no ) Indoor Standard
│ │ F: outdoor rain type
│ └ ─ ─ ─ ─ ─ ─ Series Code G: Wall-mounted direct start
│ 2: Starting from the lotus buck
│ R: soft start
└ ─ ─ ─ ─ ─ ─ ─ ─ ─ QK series control cabinet
■ Make sure the electrical power charged
■ Determine starting mode
◆ Direct start: starting current , the impact of current, the line pressure drop , requiring large capacity power supply for 1.5 ~ 15KW small power motor control.
◆ auto-voltage start: starting current is small , the impact of current is small, low pressure drop for 18.5 ~ 355KW motor control.
◆ Soft start: starting current adjustable depending on the load weight ( 0.4 to 5 times ) , no impact on current or voltage limiting soft-start ramp start Optionally , the protection feature-rich , can reduce the pump starts and stops during water hammer.
■ Determine structure type
Usually the indoor standard , depending on the installation location, type select outdoor rain .
■ Determine the required automatic control functions
▲ Note : If you do not specify the type of automatic control over , compared to standard products .
Under standard control cabinet selection function reference table
Cabinet models | QKG | QK2 | QKR | |
Power Range（kW） | 1.5~15 | 18.5~220 | 7.5~250 | |
Starting method | Direct start | √ | ||
Automatic Buck | √ | |||
Soft Start | √ | |||
Protection | Main circuit shorted | √ | √ | √ |
Phase | √ | √ | √ | |
Overcurrent | √ | √ | √ | |
Three-phase current unbalance | √ | √ | √ | |
Water protection | √ | √ | √ | |
Mounting | Wall mounting | √ | √ | |
Closet installation | √ | √ | ||
Automatic control cabinet selection function reference table
Function Type | Control | Control Components | Use |
Y-pressure control | In automatic mode, when to take the pressure below the set pressure point limit pressure water pump automatic start, automatic stop the pump when the pressure until the pressure rose to ceiling. | Pressure gauge or pressure controller | Water pressure tank |
S-time control | In automatic mode, set the day blackout period or paragraphs from the time the pump can on a daily or weekly cycle mode cycle time or time sharing water. | Programmable time controller | Regular water supply Timing starts and stop
|
| That drainage type liquid level control: In automatic mode, the drainage pump out from the pool, the water level when the water level drops down, stop draining out; When the water level and the water level rose to power, automatic power drain. | Float switch or electrode level controller | Drainage basin |
B-level control | That water-based liquid level control: In automatic mode, pump water into the pool when the water level rose to the upper limit of water level, water pump stops; When the water level has dropped to the lower level, the automatic power replenishment. | Float switch or electrode level controller | Water towers, the reservoir water |
A type With a preparation
| A control cabinet can both control the same pump power, in automatic mode, manually select to run the pump; when the pump is running fails, the standby pump control cabinet will automatically be put into operation. | Important for | |
C-
| Via RS-485 serial communication interface (user selectable), you can pump station, well group through a computer automated remote telemetry system, modern management. | Important for
|