Mining Use Multi-Function Frequency Converter

Product Description

Frequency Converter for Emulsion Pump

1. Product Introduction
BPJ1-315(400)/1140R series mine explosion-proof and intrinsically safe emulsion pump inverter is a high-tech product integrating all-digital frequency conversion speed regulation technology and related heat dissipation technology. This product is suitable for the control of emulsion pumping station with AC 50Hz, motor power 110KW~400KW and rated voltage 1140V. It can handle the dynamic process during sudden unloading, and the DC bus voltage suppression of the inverter is more stable and the current fluctuation is small. In addition to limiting the voltage and current fluctuations of the busbar, the acceleration and deceleration time of the special inverter for the emulsion pump can be set to 5 seconds for the characteristics of rapid pressure drop of the emulsion pump, that is, the inverter accelerates from zero speed to 50Hz full speed at full speed. The time is only 5 seconds, which makes the pressure follow better.


2. Product range
This product is applied to the frequency conversion speed control of emulsion pump equipment.

3. Technical parameters

Product name	Flame-proof and intrinsically safe dual power supply and dual frequency converter speed controller for ventilators
Rated input voltage(V)		6000V,10000V;50Hz
		Voltage fluctuation:±15% Frequency fluctuation:±2.5%
Rated output characteristics		Three-phase AC0~3300V, 0~6000V, 0~10000V, 0.5~50Hz
Overload capacity		150% rated current for 60s; 200% rated current for 3s
Control motorform		Asynchronous motor, permanent magnet synchronous motor, permanent magnet synchronous electric drum
	Modulation	SVPWM space vector PWM modulation
	Control method	Vector control, VF control
Main control	Slip compensation	Automatic slip compensation range: 0~150%, open-loop speed stability accuracy 0.5%, closed-loop speed stability accuracy 0.02%
	Carrier frequency	Self-tuning based on internal temperature,manually adjustable range 0.7~16kHz
	Acceleration and deceleration curve	Two types of curves: straight line and arbitrary S-curve; seven acceleration times (multi-step speed)
Display	Display operation display	Rated frequency, output frequency, voltage, current, power, motor speed, load rate, etc.
	Faultstatus dsplay	Overvoltage, undervoltage, overcurrent, overload, overheating, phase loss, short circuit, stall, leakage, etc.
Braking	Braking method	Feedback braking, DC braking
	Braking torque	150% (up to 220%)
Maincontrol operation	Starting torque	More than 150%, zero speed torque is adjustable from 0 to 100%
	Speed control range	Open loop1:100, closed loop 1:1000 (relative ratedspeed)
	Process control	Built-in PID regulator can form a closed-loop control system through various transmitters
	Automatic voltage adjustment	When the grid voltage changes, it can automatically and appropriately change the basic frequency to protect the motor load capacity.
	Frequency setting	Digital setting, analog setting, control panel setting, serial communication setting, power balance setting
	Run command given	Control panel given,external terminal given,serial communication given
	Analog input/output	0~10 V, 4~20 mA
Operation control function	Digital input	12 programmable inputs to achieve far/near control,forward/reverse rotation,  start/stop, and preset speed
	Analog output	Speed, load, bipolar load, and PID variables can all be connected to external instruments
	Switching output type	10 relay outputs (250V/10A contacts)
	Switching output	Operation output, fault output, remote control status output
	Communication function	Modbus-rtu, Modbus-tcp
Usage environment	Applicationscope	Dangerous places with gas, coal dust and explosive gas
	Altitude	The altitude is not less than-1500m and not more than 2000m (over this altitude, derating is required)
	Ambient temperature	-20ºC~40ºC
	Relativehumidity	5%~95%RH (no condensation)
Protective function		Overvoltage, undervoltage, overcurrent, overload, overheating, phase loss, short circuit, stall, leakage, etc.
Explosion-proof signs		Exdb[ib Mb]l Mb
Cooling method		Circulating water cooling (or external water supply cooling)

4. Features

(1)It adopts advanced SVPWM space vector PWM modulation control, with large output torque, 150% rated torque can be achieved at 0.5Hz, and the maximum torque output can reach 220%.

(2)The frequency converter adopts the "unit series multi-level" topology, "high-high" direct input and output mode, and reduces the input side harmonics through phase shift multiplexing technology, reducing the harmonic pollution to the power grid.

(3)The output voltage is composed of multiple power units in series, which are modulated and superimposed by SVPWM waveforms, reducing the output voltage harmonic content and output voltage dv/dt change rate, truly achieving perfect harmonic-free, and the output cable can be up to 5000 meters.

(4)Asymmetric mechanical bypass technology, if a power unit in the three phases fails, only the faulty unit is mechanically bypassed, and by changing the phase voltage angle, the generated line voltage three phases are kept 120° symmetrical and equal in amplitude.

(5)The core unit adopts a slide pull-out design, which can be easily replaced. The bolt-free buckle design allows the IGBT module and rectifier diode and other heating components to be directly attached to the board for cooling. There is no need for an internal circulation water cooling system, which improves the system stability. There is no need to wait for a series of internal circulation protections such as the detection of water ion concentration, which improves safety and stability.

(6)Excellent overcurrent suppression and overvoltage suppression functions can avoid frequent failures and meet the requirements of complex working conditions.

(7)Built-in insulation monitoring system can monitor the insulation status between the inverter and the motor in real time to achieve effective leakage protection.

(8)With automatic power balancing function, it can provide precise load distribution control, and the power imbalance is less than 2%.

(9)Full Chinese (English) display interface, matrix keyboard operation, intrinsically safe design, safe and reliable.

(10)External intrinsically safe design Ethernet port is convenient for program debugging and data transmission.

(11)The frequency converter has communication interfaces such as Ethernet, optical fiber, RS485, etc., which meet the standard communication requirements of smart mines.

★Multi-parameter data acquisition: The equipment can collect more than 80 electrical parameters such as voltage, current, power and harmonic data in real time; cooperate with the industrial big data platform to automatically generate historical trend curves of current, voltage, power and other load equipment; compare and analyze energy consumption in different regions and periods to achieve precise energy consumption management.
★Predictive maintenance of equipment: According to the analysis of various electrical parameters of load equipment, the industrial big data platform is used to build an equipment failure prediction model, timely analyze the equipment operation status and the priority of equipment maintenance, and realize the predictive maintenance function of load equipment.
★Support for multiple communication interfaces: 485 interface, Ethernet interface, wifi, 5G, 4G and other communication interfaces; support Modbus, MOTT, Http, IEC-60870 and other communication protocols.

5. Company Profile