一、產品概述(Product Overview)
1.概述(Overview)
微機消弧裝置將微機技術用于電網電壓監測報警和遠程遙信，利用計算機快速、準確的數據處理能力實現故障報警等功能。通過對系統電壓采集，準確的辨別出：金屬接地故障、弧光接地、斷線故障，鐵磁諧振等。
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.
本裝置對電力系統的運行故障均準確判斷，動作迅速，較完善地實現了監測保護等功能，并能實時記錄發生的故障以及故障發生的時間。本裝置可廣泛應用于發電廠、變電站及鋼鐵、煤炭、石油化工等大型廠礦企業的電力系統。
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.功能及特點(Functions and features)
u 模塊化設計，結構緊湊，高速ARM核處理器使運算實時性和動作準確性得以保證；
Modular design, compact structure, high-speed ARM core processor the operator real-time and motion accuracy is guaranteed.
u 實時監控系統狀態，對出現的異常運行狀態做出準確判斷，并作出及時動作；
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 工業標準的RS-485通訊接口，可以向上位機傳送系統的運行狀態；
Industry-standard RS - 485 communication interface, you can pull up a transport system of running;
u 故障追憶功能，顯示最近10次歷史故障記錄；
The Recall feature, displays the most recent 10 historical fault history.
u 具有良好的電磁兼容性，適合在強電磁干擾的復雜環境中應用；
With a good electromagnetic compatibility and is suitable for the strong electromagnetic interference in a complex environment;
u 雙硬件看門狗電路確保軟件運行的可靠性；
Double-hardware watchdog circuitry ensures that software reliability.
u 中文液晶顯示，運行狀態清晰，菜單式操作，方便易用。
Chinese LCD display, running clear, menu-driven, easy-to-use.
3．信號燈及按鍵說明：(Light and press the key description)
u運行：正常運行指示燈，閃爍頻率1Hz;
Running: Running lights, flashing frequency 1 Hz;
u報警：故障指示，系統正常運行后熄滅；
WARNING:failure indications, the system up and running off.
u通訊：遠方遙信，指示燈閃爍；
Communications: from far away, light is blinking.
u +、-、↑、↓：菜單選擇和參數調整按鍵；
+,-, ↑, And ↓: menu selection and parameter adjustment keys;
u確認：進入下級菜單和確認參數設定按鍵；
Confirmation: Enter the sub-menu and confirm Parameter Set key.
u取消：返回上級菜單和取消參數設定按鍵；
Cancel: return to previous menu and cancel Parameter Set key.
u復位：系統重新啟動按鍵。
reset: the system re-start button.
4．工作原理(Working principle)
微機消弧裝置是基于電壓互感器提供的電壓信號而設計的產品。裝置總體結構如下圖所示：主要由微機處理單元模塊、信號采集模塊、鍵盤控制模塊、裝置電源模塊、液晶顯示模塊、報警信號模塊和通訊單元模塊構成。
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、操作說明 (operating instructions)
設備在到達現場后，行裝置試驗，電源要求為直流220V±10%。在送電前需檢測電源的極性是否正確。
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.通電開機后液晶屏顯示：(power up after power on LCD display)
2．顯示界面：(Display Interface)
當裝置上電后，將顯示系統運行電壓和當前時間。可以通過方向按鍵來進行顯示界面切換。
When the unit is powered, the system operating voltage and current time. You can press key to display an Interface to switch.
如下圖所示： (As shown in the following figureJ
三相電壓：(Three-phase voltages:)
開口諧波電壓：(Opening harmonic voltages.)
3．按下“確認”按鍵進入主菜單界面：(Press the "confirm" key to enter the main menu interface:)
通過“↑↓”按鍵選擇操作項目，選定項為反色顯示。按下“確認”可進入要操作的子菜單界面。主菜單共有6項。
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．故障記錄(Fault History)
通過“↑↓”按鍵查詢最近10次故障的歷史記錄。按下“取消”返回主菜單界面，按“-”鍵清除存儲器記錄。
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．時間設定(Time setting)
通過按“↑↓”按鍵選擇修改時間參數（選中項反色顯示），“+，-”按鍵來修改時間，“確認”按鍵保存新設置的時間，“取消”按鍵不保存新設置的時間并返回主菜單。
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．通訊設置(Communications settings)
通過按“↑↓”按鍵選擇修改參數項（選中項反色顯示），“+，-”按鍵來修改對應的參數，“確認”按鍵保存新設置的參數，“取消”按鍵不保存新設置的站號并返回主菜單。
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.
7．參數設置(Parameter settings)
通過按“↑↓”按鍵選擇修改參數項（選中項反色顯示），“+，-”按鍵來修改對應的參數，“確認”按鍵保存新設置的參數，“取消”按鍵不保存新設置的站號并返回主菜單。
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．傳動試驗(Drive test)
通過按“↑↓”按鍵選擇修改參數項（選中項反色顯示），“確認”按鍵來修改對應的參數 “取消”按鍵不保存新設置的站號并返回上級菜單。
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．出廠設置(Factory settings)
按下“確認”恢復出廠參數設置。
Press the "Confirm" restore the factory parameter settings.
三、使用環境(Use environment)
1． 海拔高度：小于2000m，特殊情況下可達4000m；
Altitude above sea level: Less than 2000 M, in exceptional circumstances, up to 4000 m.
2． 工作環境溫度：-10℃- 60℃；
Working environment temperature:-10 ℃-60 ℃;
3． 空氣相對濕度：90% (25℃)、50% (40℃)
Air humidity: 90 % (25 °C), 50 per cent (40 °C)
4． 使用地點不得有腐蝕性氣體、蒸汽、導電塵埃，不得有爆炸性氣體和破壞絕緣性氣體；
Use conductive place without corrosive gas, vapour, dust, there shall be no explosive gases and destruction of insulation gas
5． 安裝地點具有防風、防雨和防塵設施。
Installation locations with wind-proof, rain-proof and dust-proof facilities.
四、裝置端子接線圖(equipment terminals wiring diagram)
1 . 端子A定義：(Terminal A definition:)
u A16 UA電壓信號；(A16 UA voltage signal)
u A15 UB電壓信號；(A15 UB voltage signal;)
u A14 UC電壓信號；(A14 Uc voltage signal;)
u A12~A13 UO電壓信號；(A12~A13 U0 voltage signal;)
u A8~A10 CT信號輸入；(A8~A10 CT input signal)
u A7~A9 PT開口三角輸入端；(A7~A9 PT open-Delta input terminal)
u A4~A6 接地公共端(A4~A6 grounding public side)
u A1~A3 RS485信號。(A1~A3 RS485 signal.)
2 . 端子B定義：(Terminal B definition:)
u B19~B20 信號公共端；(B19 ~B20 signal public port)
u B16 遠端復位信號；(B16 Remote reset signal)
u B13~B15 高壓限流熔斷器熔斷接口；
(B13~B15 high voltage current-limiting fuse interface;)
u B12 隔離開關輔助接點輸入接口；(B12 isolation switch auxiliary contacts input interface)
u B9~B11 反映三只真空接觸器是否合閘；(B9~B11 reflect three vacuum contactors switching)
u B7~B8 分閘信號輸出端，在有信號時，可令已合閘某一相真空接觸器分開，在永磁式真空接觸器使用；(B7~B8 opening signal output signal, is closing a separate vacuum contactor, permanent magnetism vacuum contactor.)
u B1~B6 合閘信號輸出端，在有信號時，可令相應真空接觸器合閘。(B1~B6 switching signal output signal, can make the appropriate vacuum contactors switching.)
3 . 端子C定義：(Terminal C definition:)
u C15~C16 裝置工作電源輸入；(C15~C16 unit power input;)
u C11~C13 接地公共端子；(C11~C13 grounding public terminal;)
u C9 ~C10 接地報警信號；(C9 ~C10 grounding alarm signal)
u C7~C8 失電報警信號；(C7~C8 power failure alarm signals)
u C5~C6 斷線報警信號；(C5~C6 disconnection alarm signal)
u C3~C 4 諧振報警信號；(C3~C 4 resonant alarm signal;)
五、安裝尺寸(mm) Installation Size (mm)
六．通訊規約 Communications statute
MODBUS（RTU模式）通訊規約，采用RS-485, 波特率為9600BPS，1位起始位,8位數據位，無校驗，1位停止位，共10位。裝置出廠時站址和通訊波特率已設好了，站址為01。CRC校驗權值為CRC-16=X16+X15+X5+1 主站詢問下行報文格式：
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+功能碼+起始地址+字長度+16位CRC校驗碼
Address + Function Code + Start Address + field length + 16-bit CRC verification code
| 地址 | 功能碼 | 起始地址 | 數據字長度 | CRC校驗碼 | |||
| ADD | 03H | 00H | 00H | 00H | 02H | CRC高 | CRC低 |
從站應答上行報文格式：Answer from station uplink message format:
地址+功能碼+字長度+數據長度+16位CRC校驗碼
Address + Function Code + field length + data length + 16-bit CRC verification code
| 地址 | 功能碼 | 字節長度 | 數據 | CRC校驗碼 | |
| ADD | 03H | 04H | 4字節 | CRC高 | CRC 低 |
| Address | Function Code | field length | data | CRC verification code | |
| ADD | 03H | 04H | 4字節 | CRC高 | CRC 低 |
數據格式定義：Data format definition:
| 地址 | 狀態定義 | 備注 |
| 0000H | 隔離刀閘位置 | =00 00H(分狀態)； =00 01H(合狀態) ； |
| 0001H | A相熔絲狀態 | =00 00H(正常)； =00 01H(熔斷) ； |
| 0002H | B相熔絲狀態 | =00 00H(正常)； =00 01H(熔斷) ； |
| 0003H | C相熔絲狀態 | =00 00H(正常)； =00 01H(熔斷) ； |
| 0004H | 動作相位 | =00 00H(正常) ； =00 01H (A相動作) ； =00 02H (B相動作) ； =00 04H (C相動作) ； |
| 0005H | 故障屬性 | =00 00H (正常) ； =00 01H (弧光接地) ； =00 02H (金屬接地) ； =00 04H (PT斷線) ； |
| 0006H | 諧振故障 | =00 00H (正常)；=00 01H (三分頻) ；=00 02H (二分頻)； =00 04H (工頻) ；=00 08H (三倍頻) ； |
| 0007H ～000AH | PT電壓(Ua,Ub,Uc,U0) | BIN格式（如0039H，為57V） |
| 000BH ～000FH | PT開口諧振電壓 (三分頻、二分頻，工頻，三倍頻) | BIN格式（如0039H，為57V） |
| Address | State Definition | 備注 |
| 0000H | Isolation switch location | =00 00H(分狀態)； =00 01H(合狀態) ； |
| 0001H | A The Fuse Status | =00 00H(正常)； =00 01H(熔斷) ； |
| 0002H | B The Fuse Status | =00 00H(正常)； =00 01H(熔斷) ； |
| 0003H | C The Fuse Status | =00 00H(正常)； =00 01H(熔斷) ； |
| 0004H | Action phase | =00 00H(正常) ； =00 01H (A相動作) ； =00 02H (B相動作) ； =00 04H (C相動作) ； |
| 0005H | Fault property | =00 00H (正常) ； =00 01H (弧光接地) ； =00 02H (金屬接地) ； =00 04H (PT斷線) ； |
| 0006H | Resonance fault | =00 00H (正常)；=00 01H (三分頻) ；=00 02H (二分頻)； =00 04H (工頻) ；=00 08H (三倍頻) ； |
| 0007H ～000AH | PT voltage (Ua,Ub,Uc,U0) | BIN格式（如0039H，為57V） |
| 000BH ～000FH | PT開口諧振電壓 (三分頻、二分頻，工頻，三倍頻) | BIN格式（如0039H，為57V） |
注：刀閘的默認值是分狀態。Note: the switch's default value is status.
例：若設備地址為1 Example: If the device address is 1
1．讀取狀態數據： Read status data:
主站發送：01 03 00 00 00 06 C5 C8 ，其中 C5 C8為CRC校驗碼；
設備回應：01 03 0C 00 01 00 00 00 00 00 00 00 00 00 00 97 8C，其中97 8C為CRC校驗碼。
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.
此時，刀閘處于合狀態，其他狀態均正常。
At this point, the switch in the State, other States are normal.
