Zhejiang New Folinn Electric Co., Ltd.
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Folinn - Model BPBT -Medium Voltage Four Quadrant Explosion-Proof Inverter
BPBT medium voltage four quadrant explosion-proof inverter, which uses PWM-controlled IGBT rectifier technique, has bilateral control for rectification and energy feedback. The power factor is close to 1, hence achieves real four-quadrant operation. The main circuit uses module structure design, which makes maintenance easy, and forms inverters with different power levels through parallel connections of these modules.
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- Rectification/feedback unit uses sine wave to give the feedback of regenerated energy to the grid, which is more energy-saving and environmental friendly than the traditional braking unit plus braking resistor, more reliable than the two quadrant inverter plus power feedback unit. It can also decrease the pollution of harmonic wave in distribution network and prevent disturbance to other equipment.
- Harmonic waves are small; the power factor of fundamental wave is close to 1 (full load).
- Excellent control performance for loop vector; achieves 200% torque output capability with zero-speed
- Uses the same structure for rectification and inversion power units; simplifies the system; easy to maintain.
- Improves the industrial application design for winches, power on logic control, brake control, pre-excitation, overspeed protection, and pre-start torque compensation functions, such that the machine is safe and reliable to be used in the hoisting industry.
- Support PROFIBUS-DP, ModBus, and Ethernet at the same time.
- The master-slave control function satisfies motor power balance and speed synchronization requirements from multiple running motors.
- Three ways to control speed: Non PG vector control (SVC), PG vector control (VC), and V/F control.
- Abundant peripheral interfaces
- Dual protection of system and unit module; power-on timing control, access control, and has auto-save status information before breakdown that allows quick diagnosis and troubleshooting.
- Uses thermo tubes for heat dissipation and explosion-proof.
- Load feature: Used for potential energy load and great torque load that have energy regeneration and energy saving requirements.
- Mining machines such as mine hoists and upward and downward belt conveyors
- Food or medical machines such as centrifuges and decantation washing machines
Technical Parameters
- Grid voltage: Three-phase 660V, 1140V
- Grid frequency: 45Hz~65Hz
- Control method: V/F control, non PG vector control
- Overheat protection: 85℃
- Digital input port: 8 digital input ports, 2 analog inputs, 2 analog outputs, and 3 relay outputs
- Built-in standard 485 communication interface, adopts MODBUS standard communication protocol
- Mounting ambient: indoor; altitude no greater than 1000m, no direct sun exposure, no conductive dust or corrosive gas
- Environmental temperature: -10℃~40℃, with good ventilation
- Environmental humidity: Below 90%RH (with no condensation)
- Vibration degree: Below 0.5g