变频器

变频器 3300

日期:2018-3-15 15:22:37 人气:946



 主要用途 Main Application

    BPJV-□/3.3系列矿用隔爆兼本质安全型高压变频器适用于含有甲烷混合气体、具有煤尘爆炸危险的矿井中,在交流50Hz、额定电压3.3KV的供电线路中,可对带式输送机、工作面刮板运输机等不同设备的电动机变频调速运行,并能对电动机实施控制和保护等。      
    BPJV-□/3.3 series flameproof and intrinsically safe high voltage inverter is suitable for mixed gas containing methane, coal mine with coal dust explosion hazard, the power supply circuit of AC 50Hz, rated voltage 3.3KV, the belt conveyor, working surface scraper conveyor equipment of different motor variable speed operation, and can control and protection of motor.   

 产品性能特点:

1、变频器采用采用12脉波整流、IGBT二极管钳位的三电平拓扑结构技术,输出波形正弦度更高,输出电压变化率显著降低。
2、选用德国英飞凌IGBT,采用叠层母排技术。
3、德国西门子PLC及数字模拟量模块。
4、选用美国德州仪器(Texas Instruments)的数字信号处理器DSP芯片。
5、直流滤波回路应使用高质量德国爱普科斯(EPCOS)的无极性高耐压自恢复电力薄膜电容。
6、电磁干扰:具有减少谐波干扰,降低电机噪音、涡流损耗延长电机寿命等作用。输出正弦波滤波器,变频器和电机之间可以满足至少3000米长电缆输电需求。
7、具有单机变频、主机运行、从机运行、检修等多种运行方式。
8、转矩和过载:输出频率在0~50Hz范围内能够令电机输出额定转矩的2.5倍;电机额定负载的300%,60s;额定负载的250% ,5分钟;软起动、软停止、电气和机械冲击小、输出转矩大等特性符合刮板输送机大惯量负载驱动系统的特点,满足各种负载情况下的重载软起动。
9、冷却方式:水冷系统中内循环为蒸馏水,不结垢,外循环对水质要求低,具有水压、水温、循环泵、补水泵、外循环水等自动监控和保护。
10、停机时用PTC温度控制保持腔体温度阻止潮气进入,同时防止结露的发生。
11、具有系统断电后迅速自动释放电容器等储能设备剩余能量。
12、显示:采用独特的隔爆型触摸屏,消除了按钮及键盘等的不方便性,具有动画显示画面,中文显示界面,显示电流、电压、频率、转矩、温度、累计用电量和时间等参数及报警值信息等,完成各种设置与操作,历史故障信息容量1000条,并有断电记忆功能。
13、具有多路I/O接口。可实现采煤机闭锁,具有远程4-20mA模拟量信号设置速度输入,远程4-20mA模拟量信号的电流、速度2路输出。
14、采用无速度传感器矢量控制,可得到精确的转矩和速度。
15、具有智能自检功能,检测主回路各接触器及变频器等的状态,实现故障定位。主要保护功能:欠压保护、过压保护、瞬间过流、接地故障保护、过载保护、电机过温保护、信号丢失保护、缺相保护、超频保护、功率器件的过热保护、漏电闭锁功能、采煤机闭锁、电缆连接器插接到位、PTC、冷却风扇、外水异常、自动外水闸阀控制等保护功能。
16、专用同步卡,实现多台变频器转速及功率平衡。主机随时监测从机运行、故障等状态、并及时根据负载动态调节从机转矩。
17、配置标准MODBUS总线接口,可实现远程设置参数、传输实际运行数据、报警、故障、通讯起停等四摇功能。
18、限流功能和稳压功能:自动调节或限制电机电流,直流电压自动调节。
19、多路输出,各路之间整流、逆变各自独立,互为备用。

1. The inverter uses 12 pulse rectifier and IGBT diode clamped three level topology technology, the output waveform is more sinusoidal, and the output voltage change rate is significantly reduced.         
2. The Infineon IGBT, Using the laminated bus-bar technology.
3. German SIEMENS PLC and digital analog module.         
4. Select the DSP chip of the digital signal processor of American TI (Texas Instruments).         
5. The DC filter circuit should use the high quality German EPCOS in the high voltage and high voltage self recovery power film capacitor.           
6. Electromagnetic interference: to reduce harmonic interference, reduce motor noise, eddy current loss to prolong the life of the motor and other functions. Output positive metaphysical wave filter, the frequency converter and the motor can meet at least 3000 meters long cable transmission demand.           
7. It has a variety of operating modes, such as single frequency conversion, host operation, slave operation, maintenance and so on.       
8. Torque and overload:  The output frequency in the range of 0 ~ 50Hz to 2.5 times the motor rated output torque of the motor;  the rated load of 300% 60s, the rated load of 250%, 5 minutes;  soft start and stop, the electrical and mechanical impact of small, large output torque characteristics are consistent with the characteristics of large transmission scraper conveyor load inertia system, meet the heavy load conditions of all kinds of soft start.         
9. Cooling mode: the internal circulation of the water cooling system is distilled water and no scaling. The external circulation has low requirement for water quality, and has the automatic monitoring and protection of water pressure, water temperature, circulating pump, replenishment pump and external circulating water.       
10. The temperature of  PTC is used to keep the temperature of the cavity to prevent the moisture entry and to prevent the occurrence of dew.          
11. The residual energy of the energy storage equipment, such as the automatic release of capacitor and so on, is quickly automatically released after power failure.      
12. Display: that the unique explosion-proof touch screen, eliminating the inconvenience of button and keyboard, with animation display, Chinese display interface, display the current, voltage, frequency, torque, temperature, total power consumption and time parameters and the value of information alarm, perform a variety of settings and operation. The historical fault information capacity of 1000, and a power-off memory function.           
13. There is a multichannel I/O interface. The coal shearer can be locked with a remote 4-20mA analog signal setting speed input, and the current and speed of the remote 4-20mA analog signal is 2 channel output.
14. Using the speed sensorless vector control, accurate torque and speed can be obtained.            
15. It has the function of intelligent self inspection: detecting the state of each contactor and frequency converter in the main circuit, so as to realize the fault location. The main protection functions: under-voltage protection, overvoltage protection, over-current and instantaneous grounding fault protection, overload protection, motor temperature protection, signal loss protection, lack of protection, protection of over-clocking of power device, overheat protection, leakage locking function,  shearer blocking, cable connector plug in place, cooling fan, PTC abnormal , External water anomaly,  Automatic external water gate valve control and other protective functions. 
16. Special synchronous card, to realize the speed and power balance of multiple frequency converters. The mainframe can monitor the running, fault and other states at any time, and adjust the torque dynamically according to the load in time. 
17. Configuring standard MODBUS bus interface can realize remote setting parameters, transmission of actual running data, alarm, fault, communication and stop and other four functions.        
18. Current limiting function and voltage stabilizing function: automatic regulation or restriction of motor current and DC voltage automatic regulation.            
19. Multiplex output, each output rectifying, inverting each independent, each other for standby.



 主要技术参数:Main technical parameters

 

变频器型号

Frequency converter model

BPJV-□/3.3

额定工作电压

Rated working voltage

V

3.3KV   -15%~+10%

额定功率

Rated power

KW

3(2、1)* (375-2000)

多路输出

Multipath output

单路、双路、三路,且每路之间整流、逆变互相独立

single output , double output , three output , and each output  is independent of rectification and inverter.

输出频率范围

 Output frequency range

Hz

0~60

拓扑结构

topological structure

 

 

12脉波整流、IGBT二极管钳位的三电平          

 12 pulse rectifying,  

three level of IGBT diode clamp

加减速时间

Acceleration and deceleration time

S

0~3000

过载能力

Overload capacity

A

2.5Ie/300s、3Ie/60s

控制方式

Control mode

V/f、有PG矢量、无PG矢量

 V/f,    PG vector,  and no PG vector

通 讯

Communication

标准RS-485接口

Standard RS-485 interface

连接方式

Connection mode

快插电缆连接器式引入引出

Quick plug cable connector

本安参数 Intrinsically safe

最高开路电压

 Maximum open circuit voltage

V

13

最大短路电流

 The maximum short circuit current

mA

22


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