| Customization: | Available |
|---|---|
| Certification: | ISO9001, CCC |
| Protection: | Flameproof |
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| Model |
Rated working voltage(V) |
Rated working current (A) |
When cos=Max. power of controlled motor at 0.75kw | Intrinsically safe control circuit parameters |
Contactor limit breaking capacity(A) |
Isolation communication switch closing and breaking capacity (A) | |
| AC-3 | |||||||
| 660V | 1140V | ||||||
| QBZ-30/1140(660,380) | 1140 660 380 |
30 | 25 | 40 | Max. opening and closing voltage ≤23.0V; Max. short-circuit current ≤46.5mA | 2500 | Positive and negative 3 times each |
| QBZ-60/1140(660,380) | 60 | 50 | 85 | 2500 | |||
| QBZ-80/1140(660,380) | 80 | 65 | 115 | 2500 | |||
| QBZ-120/1140(660,380) | 120 | 100 | 170 | 2500 | |||
| QBZ-200/1140(660,380) | 200 | 170 | 290 | 3000 | |||
Trolley Structure
The vacuum contactor is adopted and installed in the main cavity with the reversing switch, current transformer, transformer and other components. The protector and control components are installed on the front door control panel. The strong and weak circuits are separated for easy installation and maintenance.
Intelligent Protection:
Advanced microcomputer intelligent protector is adopted, which has multiple protection functions such as overload, short circuit, leakage lockout, undervoltage, overvoltage, three-phase unbalance, gas lockout, wind power lockout, etc.
LCD:
The full-Chinese large-screen LCD can display and monitor the three-phase voltage, current, zero-sequence voltage, zero-sequence current, active power,reactive power, power factor, electrical degree, insulation resistance and other parameters of the power grid in real time, as well as the fault type, fault time and fault parameters of the equipment, and has the function of fault memory and query.
Four Remote Function:
The parameter setting can be set locally by pressing the button on the side of the main switch and each branch switch screen, or through the centralized control button on the side of the centralized control panel, or can be set remotely by RS-485 interface, or Ethernet optical fiber (optional) and communication with the upper computer of the monitoring system. The remote star and stop can realize the "four remote" function to achieve unattended substation.
Quick-opening Mechanism:
The shell adopts the patented screw door opening mechanism, and is equipped with reliable mechanical interlocking, electrical locking, manual tripping and other devices.
Safety Module:
The control circuit adopts intrinsically safe and safe module.
Explosion-proof grade:
Explosion-proof type: Exd I Mb Protection grade: IP54
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