+91-80-26860228, 26860229   sales@eicmeters.in #30 & 31, J.C. Industrial Area, Kanakapura Road, Bangalore

LT Current Transformers

TYPE 01 Bar Primary Type Insulated Measuring Ct’s
p_bar These are air cooled, tap insulated for direct use on bus bars. Ring type CT’s can also be supplied with mounting clamps.
Ratios available: 40/5a to 5000/5a
Accuracy: Class 0.2 to class 5 depending upon the burden and ratio
Burden: 2.5va to 30va
Note: We can also manufacture rectangle type ct’s
Dimensions:
A B C RATIO VA. CL.
Against Specific
Enquiry
30 Against Specific Enquiry 50/5,60/5,75/5 5 5
30 100/5, 50/5, 75/5 5 1
30 200/5 10 1
45 300/5, 400/5 10 1
55 500/5, 600/5 15 1
80 800/5, 1000/5 15 1
90 1200/5 15 1
105 1600/5,2000/5 15 1
 

 

TYPE 02 Primary resin cast measuring ct’s
p_resin These CT’s are Resin Cast type having round central hole. Can be used in dusty and corrosive atmospheres.
The CT’s are supplied with complete bracket for fixing to boards and with cap for sealing secondary terminals.
Ratios available: 100/5A to 2000/5A
Accuracy: Class 1.0
Burden: 5va for Ratios 100/5a to 300/5a 15va for Ratios 400/5 to 2000/5a
Dimensions:
RATIO A B C D E
100/5 to 200/5 80 30 35 120 100
300/5 to 600/5 102 52 43 146 100
800/5 to 2000/5 150 105 55 222 160
 

 

TYPE 03 Wound Primary Resin Cast Measuring Ct’s Type 03
The primary winding is wound over the secondary winding of the CT and forms an integral part of the CT’s. These CT’s are used to obtain better accuracies for ratios where primary current is less than 100A Can be used in oily, dusty or corrosive atmospheres. These CT’s are supplied complete with mounting clamps, and cap for sealing secondary terminal.
Ratios available: 10/5A to 400/5A
Accuracy: Class 1& 0.5
Burden: 5VA 10VA or 15VA
 

 

TYPE 04 Portable Precision Grade Ct’s
p_portableprecision These CT’s are housed in wooden case with bakelite insulated panel with appropriate terminals for primary and secondary. Arrangement for shorting the secondary terminals is also provided. The boxes are provided with carrying handles and rubber grommets. A central hole is provided (in some models) to extend the primary rating of the CT’s
Ratios available: 10/5A to 400/5A
Accuracy: Class 1& 0.5
Burden: 5VA 10VA or 15VA
Dimensions:
TYPE PRIMARY SECONDARY BURDEN ACCURACY
EIC-04/1 600,300,200,100,50,254,10A 5A 5VA 0.5
EIC-04/2 1200,600,400,300,200,150,
100,75,50,30,20,10A
5A 15VA 0.2
EIC-04/3 1500,750,500,300,250,
100,50,30,10A
5A 15VA 0.2
EIC-04/4 100,50,25,10,2.5,1,0.5A 5A 15VA 0.2
TYPE A B C D
EIC-04/1 110 225 310 70
EIC-04/2
EIC-04/3
EIC-04/4
150 295 265 70
 

 

TYPE 05 Wound Primary Tape Insulated Measuring Ct’s
p_wound The primary winding is wound over the secondary winding of the CT and forms an integral part of the CT. These CT’s are used to obtain better accuracies for ratios where the primary current is less than 100A.
These CT’s are supplied with mounting clamps
Ratios available: 10/5 to 100/5A
Accuracy: 5VA 10VA or 15VA
Burden: Class 1 & 0.5%
Note: We can also manufacture custome made current transformers to meet customers individual Requirements
LIMITS OF ERROR FOR ACCURACY CLASSES 0.1 to 5.0
(CLUSES 3.2.1 AND 4.1 and 3.2.2). ISS 2705
Dimensions:
Accuracy
Class
Percentage Current(Ratio) Error At percentage of Rated Current Phase Displacement in Minutes At
Percentage of Rated Current
5 20 50 100 120 5 20 100 120
0.1 0.4 0.2 0.1 0.1 15 8 5 5
0.2 0.75 0.35 0.2 0.2 30 15 10 10
0.5 1.5 0.75 0.5 0.5 90 25 30 30
1.0 3.0 1.5 1.0 1.0 180 90 60 60
3 3 3
5 5 5
Note: All Dimensions in mm.

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