南澳電氣NAGM可調高壓數字兆歐表測試電壓高，功率大，被測量對象往往又帶有工頻泄漏或感應上高壓干擾電能，因此為了人身安全，使用該儀器首先一定要接好安全接地線。在高壓啟動后，請不要采用人工放電方式檢查儀表，在測試完畢后也應等待儀表自動放電使電壓表回零后才進行例行安全需要的人工放電。因為短路放電的強烈電脈沖波有損被測對象的絕緣壽命，如果脈沖竄入儀表，也有損儀表內的集成電路。是為了解決高壓變電站、發電廠現場強干擾下對大型高壓變壓器、電機電器、遠程電力電纜或埋設電纜等電氣絕緣電阻特性的測試而設計研制。它亦可用于廣泛領域的電氣絕緣電阻特性測量。
南澳電氣NAGM可調高壓數字兆歐表產品別名
數字兆歐表，數字式兆歐表，數顯兆歐表，絕緣表，絕緣電阻測試儀，高壓絕緣電阻測試儀，絕緣電阻測量儀，絕緣特性測試儀，電動搖表，數字搖表，數顯搖表，數字兆歐計，數字式兆歐計，高壓數字絕緣電阻測試儀，數字高壓絕緣電阻測試儀，數字高壓兆歐表，數字式高壓兆歐表，高壓數字式兆歐表，數字絕緣表，數顯絕緣表，電子式絕緣電阻測試儀，數字式絕緣電阻測試儀，數顯式絕緣電阻測試儀，數顯絕緣電阻測試儀，絕緣電阻儀，數字式電動兆歐表，大功率高壓兆歐表，可調高壓數字兆歐表
產品特性
1、此可調高壓數字兆歐表具有強力抗電場感應*力，達到2mA(50Hz)，已知適應50萬伏變電站現場不拆線測量50萬伏大型變壓器的絕緣電阻參數。
2、測試電源的短路電流＞5mAzui大15mA。適應大容量、大電感的測試。
3、電阻測量范圍寬廣，從0.5MΩ～2000GΩ。讀數準確、分辨力高。
4、測試電源的電壓范圍寬廣，可選擇0.25、0.5、1、2.5、5、10、15kV，也可從0V平滑調起連續調節到需要的電壓。
5、具有計時報時功能，提醒使用者記錄，分析被測量對象的吸收比和極化指數。
產品參數
1、產品規格
型號 | 測試電壓 | 電壓準確度 | 短路電流 |
NAGM-5kV | 0～0.25、0.5、1、2.5、5kV | ±(5%+10V) | ＞5mA |
NAGM-10kV | 0.5、1、2.5、5、10kV | ±(5%+10V) | ＞5mA |
NAGM-15kV | 1、2.5、5、10、15kV | ±(5%+10V) | ＞5mA |
NAGM-20kV | 0.5、1、2.5、5、10、20kV | ±(5%+10V) | ＞5mA |
2、量程與準確度：
量程(限壓) | 電阻測量有效范圍 | 準確度 |
20MΩ/500V | 0.5～19.99MΩ | ±(5%+5字) |
200MΩ/1000V | 5.0～199.9MΩ | ±(5%+5字) |
2GΩ | 0.05～1.999GΩ | ±(5%+5字) |
20GΩ | 0.5～19.99GΩ | ±(5%+5字) |
200GΩ/10kV、5kV | 50～199.9GΩ | ±(10%+10字) |
2000GΩ/20kV、15kV | 50～1999GΩ | ±(20%+10字) |
GΩ量程定標電壓為2.5kV
3、抗電場*力：2mA(50Hz)
4、報時、報警功能：秒表顯示zui大值為19分59秒。20分鐘一循環。聲響報點為15秒、60秒、每分鐘。到點報短促聲響，電阻讀數保持5秒，被測電阻低于量程下限，讀數無效時以連續聲報警
5、顯示表：三位半LCD數字表頭三個，分別顯示測試電壓、電阻、時間
6、供電：由內附1.2V/2000mAh鎳氫可充電電池10節，DC12V供電。帶交流(50/60Hz)220V接入口對電池充電或浮充電工作
7、使用環境：溫度：0℃～40℃；相對濕度：20%～90%RH
8、外形尺寸：315mm×240mm×155mm
9、儀器重量：5kg
Product introduction
NAGM Series adjustable high-voltage digital megger, also called High Voltage Insulation Resistence Tester, it is designed and developed for testing the insulation resistance of large high voltage transformer, electrical appliances, remote power cables or underground cable and others under strong interference in the high voltage substations or power plants. It can also be used for measuring electrical insulation resistance in broad areas.
NAGM Series adjustable high-voltage digital megger test high voltage, large power, and the tested object is often with power frequency leakage or the interference of high voltage electric induction, so for the safety of person, you should connect the grounding wire safety.
Also called name
Digital megger, digital megger, insulation sheet, insulation resistance tester, high voltage insulation resistance tester, insulation resistance meter, insulation characteristics tester, electric shake table, digital shake table, the number of significant shake table, digital Megaohmmeter, digital Megaohmmeter, high voltage digital insulation resistance tester, digital high voltage insulation resistance tester, digital pressure megger, digital pressure megger, high voltage digital megger, digital insulation meter, digital insulation meter, electronic insulation resistance tester, digital insulation resistance tester, digital insulation resistance tester, digital insulation resistance tester, insulation resistance tester, digital electric megger, digital high megger, high-power high megger
The Characteristics of the products
1 The instrument has very strong electric field induction interference resistance, can be up to 2mA (50Hz), it can adapt to the 500,000 V substation site, can test the insulation resistance of 500,000V large transformer without disconnection.
2 Test the short circuit current of power is greater than 5mA, the maximum is 15mA. Adapt to high capacity and large inductance test.
3 Wide range of resistance measurement, from 0.5MΩ to 2000GΩ, with accurate reading and high resolution.
4 Wide range of voltage measurement, 0.25kV, 0.5kV, 1kV, 2.5kV, 5kV, 10kV, 15kV can be optional, it can also continuous adjustment from 0V smoothly to the required voltage.
5 with time function to remind the users to record and analysis the absorption ratio and polarization index of the measured object.
The parameters of the products
1、Product specifications:
Model | Measuring voltage | Accuracy of voltage | Short circuit current |
NAGM-5kV | 0～0.25、0.5、1、2.5、5kV | ±(5%+10V) | ＞5mA |
NAGM-10kV | 0.5、1、2.5、5、10kV | ±(5%+10V) | ＞5mA |
NAGM-15kV | 1、2.5、5、10、15kV | ±(5%+10V) | ＞5mA |
NAGM-20kV | 0.5、1、2.5、5、10、20kV | ±(5%+10V) | ＞5mA |
2、Measuring range and accuracy：
Measuring range (limit) | Resistance measurement range | Accuracy |
20MΩ/500V | 0.5～19.99MΩ | ±(5%+5 word) |
200MΩ/1000V | 5.0～199.9MΩ | ±(5%+5 word) |
2GΩ | 0.05～1.999GΩ | ±(5%+5 word) |
20GΩ | 0.5～19.99GΩ | ±(5%+5 word) |
200GΩ/10kV、5kV | 50～199.9GΩ | ±(10%+10 word) |
2000GΩ/20kV、15kV | 50～1999GΩ | ±(20%+10 word) |
Standard rated voltage of GΩ range is 2.5kV.
3、Anti-electric interference: 2mA (50Hz)
4、The function of time and alarm: the stopwatch shows a maximum value of 19 minutes and 59 seconds, 20 minutes a cycle. The alarm time is about 15 seconds per minute or 60 seconds, the sound is short, the resistance reading keep 5 seconds, when the measured resistance is lower than the limit of the range, the reading is invalid, it can continuous alarm.
5、Display: three and half digit, three LCD digital meter respectively show the test voltage, resistance, time.
6、Power supply: enclosed 10 pieces of 1.2V/2000mAh rechargeable battery, DC12V. With AC 220V (50/ 60HZ) access to the battery charging or float charging.
7、Operating environment:
Temperature: 0℃ ~ 40℃; Relative humidity: 20% ~ 90% RH
8、Size: 315mm×240mm×155mm
9、Weight: 5kg
