Lxk Split Core Zero Sequence Current Transformer
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LXK zero sequence current transformer
Model description
LXK-φ80(100,120,200,300)
L: Current transformer
X: Zero sequence
K: Open-close type
φ80(100,120,200,300): Nominal diameter of inner hole
It is suitable for use with DD-11/60 or DD-1/60 type relay and signal device in small grounding current system with rated frequency 50/60Hz and rated voltage 35kV and below for residual (zero sequence) current detection and grounding protection, while acting the device ,achieving protection and monitoring. LXK series of residual (zero sequence) current transformer is cable resin pouring insulation indoor product, this series zero sequence current transformer is open and close type, epoxy resin casting structure, when installation it can be divided to two parts, and then merged into one, it is easy to install, this transformer inner diameter has the specifications φ80,φ100,φ120,140,φ150,φ160,φ180,φ200,φ240,φ260,φ300.
Technical parameter
The cable ensures the primary main insulation of this series current transformer, products only test the secondary winding insulation performance, the power frequency withstand voltage of the secondary winding to the ground is 3kV.
Model | LXK-φ80 | LXK-φ100 | LXK-φ120 | LXK-φ140 | LXK-φ160 | LXK-φ180 | LXK-φ200 | LXK-φ240 | LXK-φ260 | LXK-φ300 |
Rated current ratio(A) | 50-600/1 or 150-300/5… | |||||||||
Accuracy | 5P10 5P20… | |||||||||
Capacity | 1-15VA or 15VA | |||||||||
Relay model | Relay coil connection | Relay scale value(mA) | Primary zero sequence current of relay acting(A) |
DD-11/60 | series connection | 15x1-30x1 | 2-5 |
parallel connection | 15x2-30x2 | ||
DD-1/60 | series connection | 15x1-30x1 | 3-6 |
parallel connection | 15x2-30x2 |
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