Current transformer model meaning - Database & Sql Blog Articles
There are many types of current transformers, which can be classified according to the application, the structure, the insulation form and the form of the primary winding. As usual, the model is expressed in horizontal letters and numbers. The meanings of the letters in each part are as follows:
Table current transformer type letter meaning
Alphabetical order
Code meaning
1 (type)
L-current transformer
2 (installation form)
A-through wall type; B-support type; C-ceramic box type; D-single-single type; F-multi-turn type; J——ground protection type; M-bus type; Z-pillar type; Q-coil type ; R - loaded: Y - low pressure;
3 (insulated form)
C—ceramic insulation; G—modified type; K—plastic casing; L—cable capacitance type; M—bus type;
P-intermediate frequency; S-quick-saturated; Z-casting type; W-outdoor type; X-small volume dedicated;
J-resin casting type;
4 (structural form)
B—protective; Q—reinforced; J—increase capacity; D—for differential protection; L—aluminum wire
Current Transformer Model Meaning Current Transformer Model:The first letter: L - current transformer second letter: A - through the wall; Z - pillar type; M - bus type; D - single åŒ through; V - structure inverted; J - zero sequence grounding detection; W—anti-fouling; R—winding exposed third letter: Z—epoxy resin casting type; C—ceramic insulation; Q—gas insulating medium; W—and microcomputer-protected fourth digit: B—with protection level; C - Differential protection; D-D level; Q-reinforced type; J-reinforced fifth digit: voltage grade product serial number
LZZBJ71-10 current transformer is L: current transformer Z: pillar type Z: cast type B: with protection level J: reinforcement shape 71: design number 10: voltage level
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