变频器

变频器 1140

日期:2018-3-15 15:21:52 人气:1104



 主要用途 Main Application

    BPJ2-口/1140系列矿用隔爆兼本质安全型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,或露天矿、选煤厂等,在交流50Hz、额定电压1140V的供电线路中,可对带式输送机、工作面刮板运输机、风机、水泵、乳化液泵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。
    BPJ2-□ /1140 series flameproof and intrinsically safe frequency inverter suitable for mixed gas containing methane, coal mine with coal dust explosion hazard, or mine, coal preparation plant, the power supply circuit of AC 50Hz, rated voltage 1140V, the belt conveyor, face scraper conveyor, air blower, water pump, emulsion pump with different equipment motor frequency control operation, and the implementation of the control and protection of the motor.   

 产品性能特点:

1、变频器采用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1500米长电缆输电需求。
7、具有单机变频、主机运行、从机运行、旁路、检修等多种运行方式,具有应急旁路功能。
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:热管散热或水冷热交换。
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: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等信息,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、漏电闭锁功能保护等。
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、采用真空隔离开关,具有闭锁机构实现无载分断。
19、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。
20、隔爆主腔:采用快开门机构,门的开闭简便、轻捷、维护更换方便。

1.The frequency converter adopts the three level topology technology of IGBT diode clamping. 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 1500 meters long cable transmission demand.           
7. It has a variety of operating modes, such as single frequency conversion, host operation, slave operation, bypass, maintenance and so on. It has emergency bypass function.       
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 motor is 300%, 60s;  the rated load, of 250%, 5 minutes;  soft start, soft stop, The electricity and characteristics of the large inertia load drive system of scraper conveyor meet the requirements of various load cases, such as small mechanical impact and large output torque.          
9. cooling mode: heat pipe heat dissipation or water cold and heat exchange.       
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: Chinese display interface, display current, voltage, frequency, torque, temperature, cumulative power consumption and time and other parameters and alarm values and other information, complete various settings and operation, the history of fault information capacity 1000, and 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 channal 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 are under voltage protection, over voltage protection, transient over-current, ground fault protection, overload protection, motor over-temperature protection, signal loss protection, phase loss protection, over-frequency protection, overheating protection of power devices, leakage blocking function protection and so on.
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. The vacuum isolation switch is adopted, and the locking mechanism can be broken without load.         
19. Current limiting function and voltage stabilizing function: Automatic regulation or restriction of motor current and DC voltage automatic regulation.            
20. The main blasting cavity : Separated by quick opening mechanism, opening and closing is simple, nimble, convenient maintenance and replacement. 



 主要技术参数:Main technical parameters

变频器型号

Frequency converter model

BPJ2-口/1140

额定工作电压

 Rated working voltage

V

1140   -15%~+10%

额定功率

Rated power

KW

90-1000

输出频率范围

Output frequency range

Hz

0~60

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

压盘式引入引出

 pressure plate type  input  and output

Vacuum contactor

真空接触器

额定电压 Rated voltage

V

1140

额定电流 Rated current

A

400

630

800

接通能力 Connection capacity

A

4000

6000

8000

分断能力 Breaking capacity

A

3200

4800

6400

极限分断能力 Limit breaking capacity

A

4500

6000

7500

本安参数 Intrinsically safe

Parameters

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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