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JLED(S)H series electronic combined three-phase instrument transformer used for GIS

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JLED(S)H series electronic group transformer is suitable for the neutral point solidly earthed AC power system, whose highest voltage for equipment is 66~500kV and rated frequency 50Hz/60Hz. It can be used for electrical measurement and relay protection.


JLED(S)H series electronic current voltage transformer combines the current transformer and voltage transformer together. Contrast to the conventional instrument transformer, electronic transformer insulation structure is easy, and with small volume, light weight, low cost, no iron and no ferro-resonance phenomenon problems etc. Anti-electromagnetism interference performance is good, dynamic range and frequency response is wide. Product insulation structure fully utilizing existing GIS SF6 gas insulating properties, insulation structure is simple and reliable.