一、产品概述(Product Overview)
1.概述(Overview)
微机消弧装置将微机技术用于电网电压监测报警和远程遥信，利用计算机快速、准确的数据处理能力实现故障报警等功能。通过对系统电压采集，准确的辨别出：金属接地故障、弧光接地、断线故障，铁磁谐振等。
Micro-arc unit the micro-machine technology for grid voltage monitoring alarm and remote distance to use computer fast, accurate data processing for fault alarm, and so on. The system voltage acquisition, accurate identification of the metal ground fault, arcing ground, disconnected, ferromagnetic resonance, and so on.
本装置对电力系统的运行故障均准确判断，动作迅速，较完善地实现了监测保护等功能，并能实时记录发生的故障以及故障发生的时间。本装置可广泛应用于发电厂、变电站及钢铁、煤炭、石油化工等大型厂矿企业的电力系统。
The unit of the electricity system in operation are accurate, quick, and better for the monitoring of the protection, and features, and real-time record of fault and failure occurred at a time. The unit can be used for power plants, substation and iron and steel, coal, petrochemical and large mines and factories of the electrical system.
2.功能及特点(Functions and features)
u 模块化设计，结构紧凑，高速ARM核处理器使运算实时性和动作准确性得以保证；
Modular design, compact structure, high-speed ARM core processor the operator real-time and motion accuracy is guaranteed.
u 实时监控系统状态，对出现的异常运行状态做出准确判断，并作出及时动作；
Real-time monitoring of system status, and to the Exception run status to make an accurate judgment, and to operate in a timely fashion.
u 工业标准的RS-485通讯接口，可以向上位机传送系统的运行状态；
Industry-standard RS - 485 communication interface, you can pull up a transport system of running;
u 故障追忆功能，显示最近10次历史故障记录；
The Recall feature, displays the most recent 10 historical fault history.
u 具有良好的电磁兼容性，适合在强电磁干扰的复杂环境中应用；
With a good electromagnetic compatibility and is suitable for the strong electromagnetic interference in a complex environment;
u 双硬件看门狗电路确保软件运行的可靠性；
Double-hardware watchdog circuitry ensures that software reliability.
u 中文液晶显示，运行状态清晰，菜单式操作，方便易用。
Chinese LCD display, running clear, menu-driven, easy-to-use.
3．信号灯及按键说明：(Light and press the key description)
u运行：正常运行指示灯，闪烁频率1Hz;
Running: Running lights, flashing frequency 1 Hz;
u报警：故障指示，系统正常运行后熄灭；
WARNING:failure indications, the system up and running off.
u通讯：远方遥信，指示灯闪烁；
Communications: from far away, light is blinking.
u +、-、↑、↓：菜单选择和参数调整按键；
+,-, ↑, And ↓: menu selection and parameter adjustment keys;
u确认：进入下级菜单和确认参数设定按键；
Confirmation: Enter the sub-menu and confirm Parameter Set key.
u取消：返回上级菜单和取消参数设定按键；
Cancel: return to previous menu and cancel Parameter Set key.
u复位：系统重新启动按键。
reset: the system re-start button.
4．工作原理(Working principle)
微机消弧装置是基于电压互感器提供的电压信号而设计的产品。装置总体结构如下图所示：主要由微机处理单元模块、信号采集模块、键盘控制模块、装置电源模块、液晶显示模块、报警信号模块和通讯单元模块构成。
Micro-arc unit is based on voltage transformer for Voltage Signal and design of the product. Unit overall structure is shown in the following figure: the micro-processing unit modules, Signal Acquisition Module , keyboard control module, power the unit module, LCD display module, alarm signal modules and communications modules.
二、操作说明 (operating instructions)
设备在到达现场后，行装置试验，电源要求为直流220V±10%。在送电前需检测电源的极性是否正确。
The arrival at the scene, a unit test and the power requirements for DC 220 V ± 10 %. In the pre-test the power supply polarity is correct.
.
1.通电开机后液晶屏显示：(power up after power on LCD display)
2．显示界面：(Display Interface)
当装置上电后，将显示系统运行电压和当前时间。可以通过方向按键来进行显示界面切换。
When the unit is powered, the system operating voltage and current time. You can press key to display an Interface to switch.
如下图所示： (As shown in the following figureJ
三相电压：(Three-phase voltages:)
开口谐波电压：(Opening harmonic voltages.)
3．按下“确认”按键进入主菜单界面：(Press the "confirm" key to enter the main menu interface:)
通过“↑↓”按键选择操作项目，选定项为反色显示。按下“确认”可进入要操作的子菜单界面。主菜单共有6项。
Through the "↑ ↓" buttons Select action items, invert the colors of the selected item appears. Press "confirm" to enter the submenu to operate interface. Main menu consists of 6 items.
4．故障记录(Fault History)
通过“↑↓”按键查询最近10次故障的历史记录。按下“取消”返回主菜单界面，按“-”键清除存储器记录。
Through the "↑ ↓" hard to find 10 recent fault history. Press "Cancel" to return to the main menu, press the "-" key to clear the memory record.
5．时间设定(Time setting)
通过按“↑↓”按键选择修改时间参数（选中项反色显示），“+，-”按键来修改时间，“确认”按键保存新设置的时间，“取消”按键不保存新设置的时间并返回主菜单。
By pressing the "↑ ↓" button and select change time parameters (checked items to invert the colors on the display), the "+,-" button to modify the time, the "confirm" button to save the new settings, the "Cancel" button does not save new settings and return to the main menu.
6．通讯设置(Communications settings)
通过按“↑↓”按键选择修改参数项（选中项反色显示），“+，-”按键来修改对应的参数，“确认”按键保存新设置的参数，“取消”按键不保存新设置的站号并返回主菜单。
By pressing the "↑ ↓" buttons select modify parameters (checked items to invert the colors on the display), the "+,-" button to modify the parameters corresponding to the, "confirm" button to save the new set of parameters, the "Cancel" button without the stａnd to save the new settings and return to the main menu.
7．参数设置(Parameter settings)
通过按“↑↓”按键选择修改参数项（选中项反色显示），“+，-”按键来修改对应的参数，“确认”按键保存新设置的参数，“取消”按键不保存新设置的站号并返回主菜单。
By pressing the "↑ ↓" buttons select modify parameters (checked items to invert the colors on the display), the "+,-" button to modify the parameters corresponding to the, "confirm" button to save the new set of parameters, the "Cancel" button without the stａnd to save the new settings and return to the main menu.
8．传动试验(Drive test)
通过按“↑↓”按键选择修改参数项（选中项反色显示），“确认”按键来修改对应的参数 “取消”按键不保存新设置的站号并返回上级菜单。
By pressing the "↑ ↓" buttons select modify parameters (checked items to invert the colors on the display), the "confirm" button to modify the parameters corresponding to the "Cancel" button to save the new settings and return to the parent menu.
9．出厂设置(Factory settings)
按下“确认”恢复出厂参数设置。
Press the "Confirm" restore the factory parameter settings.
三、使用环境(Use environment)
1． 海拔高度：小于2000m，特殊情况下可达4000m；
Altitude above sea level: Less than 2000 M, in exceptional circumstances, up to 4000 m.
2． 工作环境温度：-10℃- 60℃；
Working environment temperature:-10 ℃-60 ℃;
3． 空气相对湿度：90% (25℃)、50% (40℃)
Air humidity: 90 % (25 °C), 50 per cent (40 °C)
4． 使用地点不得有腐蚀性气体、蒸汽、导电尘埃，不得有爆炸性气体和破坏绝缘性气体；
Use conductive place without corrosive gas, vapour, dust, there shall be no explosive gases and destruction of insulation gas
5． 安装地点具有防风、防雨和防尘设施。
Installation locations with wind-proof, rain-proof and dust-proof facilities.
四、装置端子接线图(equipment terminals wiring diagram)
1 . 端子A定义：(Terminal A definition:)
u A16 UA电压信号；(A16 UA voltage signal)
u A15 UB电压信号；(A15 UB voltage signal;)
u A14 UC电压信号；(A14 Uc voltage signal;)
u A12~A13 UO电压信号；(A12~A13 U0 voltage signal;)
u A8~A10 CT信号输入；(A8~A10 CT input signal)
u A7~A9 PT开口三角输入端；(A7~A9 PT open-Delta input terminal)
u A4~A6 接地公共端(A4~A6 grounding public side)
u A1~A3 RS485信号。(A1~A3 RS485 signal.)
2 . 端子B定义：(Terminal B definition:)
u B19~B20 信号公共端；(B19 ~B20 signal public port)
u B16 远端复位信号；(B16 Remote reset signal)
u B13~B15 高压限流熔断器熔断接口；
(B13~B15 high voltage current-limiting fuse interface;)
u B12 隔离开关辅助接点输入接口；(B12 isolation switch auxiliary contacts input interface)
u B9~B11 反映三只真空接触器是否合闸；(B9~B11 reflect three vacuum contactors switching)
u B7~B8 分闸信号输出端，在有信号时，可令已合闸某一相真空接触器分开，在永磁式真空接触器使用；(B7~B8 opening signal output signal, is closing a separate vacuum contactor, permanent magnetism vacuum contactor.)
u B1~B6 合闸信号输出端，在有信号时，可令相应真空接触器合闸。(B1~B6 switching signal output signal, can make the appropriate vacuum contactors switching.)
3 . 端子C定义：(Terminal C definition:)
u C15~C16 装置工作电源输入；(C15~C16 unit power input;)
u C11~C13 接地公共端子；(C11~C13 grounding public terminal;)
u C9 ~C10 接地报警信号；(C9 ~C10 grounding alarm signal)
u C7~C8 失电报警信号；(C7~C8 power failure alarm signals)
u C5~C6 断线报警信号；(C5~C6 disconnection alarm signal)
u C3~C 4 谐振报警信号；(C3~C 4 resonant alarm signal;)
五、安装尺寸(mm) Installation Size (mm)
六．通讯规约 Communications statute
MODBUS（RTU模式）通讯规约，采用RS-485, 波特率为9600BPS，1位起始位,8位数据位，无校验，1位停止位，共10位。装置出厂时站址和通讯波特率已设好了，站址为01。CRC校验权值为CRC-16=X16+X15+X5+1 主站询问下行报文格式：
MODBUS (RTU mode) communication protocol, RS-485, baud rate 9600BPS,1 the start bit, 8 data bits, no parity, 1 stop bit, and a total of 10. Appliance factory sites and communication baud rate is set, site is 01. CRC checking weight CRC-16=X16+X15+X5+1 main site then ask for downlink message format:
地址+功能码+起始地址+字长度+16位CRC校验码
Address + Function Code + Start Address + field length + 16-bit CRC verification code
| 地址 | 功能码 | 起始地址 | 数据字长度 | CRC校验码 | |||
| ADD | 03H | 00H | 00H | 00H | 02H | CRC高 | CRC低 |
从站应答上行报文格式：Answer from station uplink message format:
地址+功能码+字长度+数据长度+16位CRC校验码
Address + Function Code + field length + data length + 16-bit CRC verification code
| 地址 | 功能码 | 字节长度 | 数据 | CRC校验码 | |
| ADD | 03H | 04H | 4字节 | CRC高 | CRC 低 |
| Address | Function Code | field length | data | CRC verification code | |
| ADD | 03H | 04H | 4字节 | CRC高 | CRC 低 |
数据格式定义：Data format definition:
| 地址 | 状态定义 | 备注 |
| 0000H | 隔离刀闸位置 | =00 00H(分状态)； =00 01H(合状态) ； |
| 0001H | A相熔丝状态 | =00 00H(正常)； =00 01H(熔断) ； |
| 0002H | B相熔丝状态 | =00 00H(正常)； =00 01H(熔断) ； |
| 0003H | C相熔丝状态 | =00 00H(正常)； =00 01H(熔断) ； |
| 0004H | 动作相位 | =00 00H(正常) ； =00 01H (A相动作) ； =00 02H (B相动作) ； =00 04H (C相动作) ； |
| 0005H | 故障属性 | =00 00H (正常) ； =00 01H (弧光接地) ； =00 02H (金属接地) ； =00 04H (PT断线) ； |
| 0006H | 谐振故障 | =00 00H (正常)；=00 01H (三分频) ；=00 02H (二分频)； =00 04H (工频) ；=00 08H (三倍频) ； |
| 0007H ～000AH | PT电压(Ua,Ub,Uc,U0) | BIN格式（如0039H，为57V） |
| 000BH ～000FH | PT开口谐振电压 (三分频、二分频，工频，三倍频) | BIN格式（如0039H，为57V） |
| Address | State Definition | 备注 |
| 0000H | Isolation switch location | =00 00H(分状态)； =00 01H(合状态) ； |
| 0001H | A The Fuse Status | =00 00H(正常)； =00 01H(熔断) ； |
| 0002H | B The Fuse Status | =00 00H(正常)； =00 01H(熔断) ； |
| 0003H | C The Fuse Status | =00 00H(正常)； =00 01H(熔断) ； |
| 0004H | Action phase | =00 00H(正常) ； =00 01H (A相动作) ； =00 02H (B相动作) ； =00 04H (C相动作) ； |
| 0005H | Fault property | =00 00H (正常) ； =00 01H (弧光接地) ； =00 02H (金属接地) ； =00 04H (PT断线) ； |
| 0006H | Resonance fault | =00 00H (正常)；=00 01H (三分频) ；=00 02H (二分频)； =00 04H (工频) ；=00 08H (三倍频) ； |
| 0007H ～000AH | PT voltage (Ua,Ub,Uc,U0) | BIN格式（如0039H，为57V） |
| 000BH ～000FH | PT开口谐振电压 (三分频、二分频，工频，三倍频) | BIN格式（如0039H，为57V） |
注：刀闸的默认值是分状态。Note: the switch's default value is status.
例：若设备地址为1 Example: If the device address is 1
1．读取状态数据： Read status data:
主站发送：01 03 00 00 00 06 C5 C8 ，其中 C5 C8为CRC校验码；
设备回应：01 03 0C 00 01 00 00 00 00 00 00 00 00 00 00 97 8C，其中97 8C为CRC校验码。
The station sent: 01 03 00 00 00 06 5 C C 8, where C C 5 8 CRC verification code.
Device Response: 01 03 0 C 00 01 00 00 00 00 00 00 00 00 00 00 97 8 C, 97 8 C CRC for verification code.
此时，刀闸处于合状态，其他状态均正常。
At this point, the switch in the State, other States are normal.
