南澳電氣NAEN型電子式互感器校驗系統裝置按國標G/T 20847.7電子式電壓互感器及G/T 20847.8電子式電流互感器的規定，電子式互感器(ECT/EVT)有模擬量輸出和數字量輸出兩種。本校驗系統按照國標G/T 20847.7/8電子式互感器標準和IEC61850通訊標準，基于虛擬儀器，可實現電子式互感器模擬和數字量輸出的比差、相差的測量，記錄，及電子式互感器的在線測量比對。為廣大電力試驗、計量、施工單位提供一種可移動的電子式互感器校驗裝置。
該校驗系統既可以完成電子式電流互感器的校驗也可以完成電子式電壓互感器的校驗。該系統分為電流標準通道，電壓標準通道，電流被測通道，電壓被測通道，校驗儀數據處理平臺。電流標準通道由升流器、標準電流互感器、標準轉換器組成。電流被測通道由升流器、被校互感器組成。校驗儀通過采集器獲取標準電流傳感器和被校電流傳感器的電參量，并將這些電參量以標準格式上傳給計算機，計算機數據處理平臺將同一時刻的兩個信號進行比對處理，計算出被校電流傳感器的誤差情況，顯示并記錄測量結果。電壓標準通道由升壓器、標準電壓互感器、標準轉換器組成。電壓被測通道由升壓器、被校互感器組成。工作原理與電流校驗系統相同。
南澳電氣NAEN型電子式互感器校驗系統裝置
系統特點
●符合G/T 20847.7 /8、IEC61850-9-1標準；
●功能強大，適用于基于G/T 20847.7 /8的電子式電流、電壓互感器的模擬量輸出接口、數字量輸出接口的校驗。
●基于虛擬儀器的設計，操作簡單，配置靈活，系統穩定；
●準確度高、可靠性強。準確度等級達到0.05級，可用于對0.2級電子式電流互感器和0.2級電子式電壓互感器比對和校驗。
●采用高精度插值法進行同步，保證被校互感器和標準互感器采集的數據以嚴格的時序同步，可靠性、實用性大為提高。
南澳電氣NAEN型電子式互感器校驗系統裝置
系統功能
●配置靈活，可根據不同的需要配置/電子式電流互感器校驗/電子式電壓互感器校驗；
●計算被校互感器與標準互感器電流/電壓有效值的比差、相差；
●顯示當前一次導線的電流、電壓、頻率等相關信息，便于綜合評估被校參數；
●顯示被校互感器輸出的實時波形，以及相關設置，并自動保存校驗數據，生成報表；
●靈活配置試驗參數，測試范圍，測試次數，采樣點數等相關信息。
南澳電氣NAEN型電子式互感器校驗系統裝置
性能指標
類別 | 項目指標 |
一次額定電壓 | 10kV 、35kV 、110kV、 220kV 、500kV |
一次額定電流 | 可根據用戶要求定制 |
測量范圍 | 電壓(V):80%-150%Un(Un：一次額定電壓) |
電流(A):5%-120%In(In：一次額定電流) |
工作電壓 | AC220V±10% 50±0.5Hz |
準確度等級 | 電流：0.05級 |
電壓：0.05級 |
功耗 | <20W |
執行標準 | IEC 60044-7/8；IEC61850-9-1；IEC61850-9-2 |
工作環境 | 使用溫度: 戶內部分0℃～40℃；戶外部分－25℃～＋50℃ |
相對濕度：≤85%（25℃） |
海拔高度：<2500m |
大氣壓力：80kPa～110kPa |
使用壽命 | ≥10年 |
電磁兼容 | 滿足IEC60044－8 G/T20847.8 |
振動 | GB/T11287-2000 I級 |
沖擊和碰撞 | GB/T14537.13-1993 I級 |
Main Features
According to the national standard G / T 20847.7 electronic voltage transformer and G / T 20847.8 electronic current transformer requirements, electronic transformer (ECT / EVT) has two kinds of analog output and digital output. The calibration system is based on the virtual instrument, which can realize the measurement of difference, difference between analog and digital output of the electronic transformer, according to GB / T20847.7 / 8 electronic transformer standard and IEC61850 communication standard. On - line Measurement Comparison of Transformer. For the majority of power testing, measurement, construction units to provide a removable electronic transformer calibration device.
The calibration system can complete the electronic current transformer calibration can also complete the electronic voltage transformer calibration. The system is divided into current standard channel, the voltage standard channel, the current measured channel, the voltage measured channel, calibrator data processing platform. The current standard channel consists of a booster, a standard current transformer, and a standard converter. Current measured by the current channel channel, the school was composed of transformers. The calibrator obtains the electric parameters of the standard current sensor and the calibrated current sensor through the collector, and uploads these electrical parameters to the computer in the standard format. The computer data processing platform compares the two signals at the same time, The school current sensor error situation, display and record the measurement results. Voltage standard channel from the booster, the standard voltage transformer, the standard converter components. Voltage measured by the booster channel, the school was composed of transformers. The operating principle is the same as the current calibration system.
System Features
● comply with G / T 20847.7 / 8, IEC61850-9-1 standard;
● powerful, suitable for G / T 20847.7 / 8-based electronic current, voltage transformer analog output interface, digital output interface verification.
● Based on virtual instrument design, simple operation, flexible configuration, system stability;
● High accuracy and reliability. Accuracy level of 0.05, can be used for 0.2 grade electronic current transformer and 0.2 electronic voltage transformer alignment and calibration.
● Using high-precision interpolation method to synchronize to ensure that the school transformer and the standard transformer data collection to strict timing synchronization, reliability, practical greatly improved.
System functions
● Flexible configuration, can be configured according to different needs / electronic current transformer calibration / electronic voltage transformer calibration;
● Calculate the difference between the transformer and the standard transformer current / voltage rms,
● Display current, voltage, frequency and other information of the current wire to facilitate the comprehensive assessment of the school parameters;
● Display the real-time waveform of the transformer output, and related settings, and automatically save the calibration data, generate reports;
● Flexible configuration of test parameters, test range, test frequency, sampling points and other relevant information.
Performance Index
Category | Item Indicators |
Single rated voltage | 10kV 、35kV 、110kV、 220kV 、500kV |
Single rated current | Manufacture as user asked |
Test range | Voltage(V): 80%-150%Un(Un：Single rated voltage) |
Current(A): 5%-120%In(In：Single rated current) |
Work power | AC220V±10% 50±0.5Hz |
Accuracy level | Current：0.05 Level |
Voltage：0.05 Level |
Power consumption | <20W |
Adapt standard | IEC 60044-7/8；IEC61850-9-1；IEC61850-9-2 |
Work environment | Use temperature: 0℃～40℃ inside door；－25℃～＋50℃ outside door. |
Relative humidity：≤85%（25℃） |
Altitude：<2500m |
Atmospheric pressure：80kPa～110kPa |
Life of use | More than 10 years |
Electromagnetic Compatibility | Satisfy IEC60044－8 G/T20847.8 |
Vibration | GB/T11287-2000 I level |
Impact and collision | GB/T14537.13-1993 I level |
