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SIM-2絕緣監測表

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產品名稱: SIM-2絕緣監測表
產品型號: SIM-2
產品展商: DEIF丹控
產品價格: 0.00 元
折扣價格: 0.00 元
會員價格: 0.00 元
關注指數:771
產品文檔: 無相關文檔

簡單介紹

SIM-2絕緣監測表監視絕緣電阻之間的連接的網絡和一個地球/**電纜。利用獨特的測量原理,測量了交流和直流電網的絕緣電阻。


SIM-2絕緣監測表  的詳細介紹

SIM-2絕緣監測表監視絕緣電阻之間的連接的網絡和一個地球/**電纜。利用獨特的測量原理,測量了交流和直流電網的絕緣電阻。

The SIM-2 is particularly suitable for high-end monitoring of AC/DC networks characterised by high leakage capacitance. A low frequency (LF) version of the SIM-2 is available for thruster systems with 5-20Hz frequency variations.


The SIM-2 uses a patented measuring method, where a ±25 V DC voltage is superimposed to the system being monitored. To be able to eliminate the influence from the monitored network capacitances and AC/DC components, the SIM-2 performs an automatic measuring cycle that will compensate for these.


Selectable modes


The ability of the SIM-2 to measure large capacitances results in long measurement cycles due to the charging and discharging of the network leakage capacitance.


To ensure a fast reacting product during fault-finding, the SIM-2 has been equipped with three selectable modes for optimal performance:

Normal mode (IMD type: AC/DC)

Long measuring cycles and relatively long response time, but immune to disturbances. Depending on the capacitance and DC levels, the response time can be between 10 and 7,000 seconds (2 hours).



Fast mode (IMD type: AC)

Short response time. Used for fault location when several groups have to be switched in/out. The measurement does not compensate for capacitance and DC levels!



Test mode

Used for self-test of warning/relay function and adjustment of set point. When the mode is selected, the relay is activated and the meter shows the actual set point value. Use the knob on the rear side of the housing to adjust set point to desired value, and then select monitoring mode for measuring.



Three functions: Normal, fast and test

Easy set-point

Leakage capacitance up to 2000 uF

Working voltage up to 690 V AC - withstands up to 1,000 V DC

Measurement down to 5Hz (LF-version)

Complies with IEC 61557-8


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