Supreme accuracy CTs
Application
 
0.2/0.5 Class watt hour meter for power station & substation.
Transformer operated & Indirect connected solid state energy meter for the high accuracy class.
Energy meter for tampering protection
Accuracy power transducer
Power sensor
Precision power meter
Power calibrator
   
Feature
 
Supreme accuracy ( at the minimal current )
Zero phase shift
Excellent precision
   
General Specification
 
No problem with 1.2times continuous overload and 4 times overload for 1sec. against rated current being decided on the applied burden.
Dielectric withholding voltage : 3.5KV for 1 minute.
Humidity: Completely epoxy encapsulated & no humidity affected.
 
1-2. Supreme Accuracy Model ( I )
   
Feature
 
Supreme accuracy at the range of 0.25Amp or less
Zero phase displacement
Supreme linearity
   
Accuracy Class : 0.2 Class ( Meter )
   
Recommended Current Rating & Burden
 
High End Model
 
Model Current Ratio Ratio Error Burden at 20 Current Rating
TZ77NL/V 2,500 / 1 ±0.1% 0.1415VA 1Amp, 6Amp
TZ31L/V 5,000 / 1 ±0.1% 0.0480VA 5A, 10A, 120A
TZ76L/V 2,500 / 1 ±0.1% 0.1843VA 5A, 60A, 120A
TZ87L/V 4,000 / 1 ±0.1% 0.1361VA 5A, 80A, 120A
TZ105L/V 2,000 / 1 ±0.1% 0.4805VA 5A, 100A, 200A
   
 
Low End Model
 
Model Current Ratio Ratio Error Burden at 20 Current Rating
TZ77SL/V 2,500 / 1 ±0.2% 0.0135VA 1Amp, 6Amp
TZ77L/V 2,500 / 1 ±0.2% 0.0131VA 5Amp, 20Amp
TZ71L/V 2,500 / 1 ±0.2% 0.0276VA 5A, 50A, 60A
TZ84L/V 1,000 / 1 ±0.2% 0.2040VA 60A, 80A, 100A
   
Drawing & Dimension
   
 
Drawing
   
 
   
 
Dimension
 
Lead Wire Type ( unit : mm/inch )
 
Model A(min) B(max) C(max) D(max) E(max) F(±3) G(±1)
TZ77SL
TZ77NL
TZ 77L		 6.9
0.272"		 23.3
0.917"		 11
0.433"		 26.6
1.047"		 7
0.276"		 71
2.795"		 3
0.118"
TZ71L 8.9
0.350"		 25.3
0.996"		 17
0.669"		 28.6
1.126"		 7
0.276"		 65
2.559"		 3
0.118"
TZ76L
TZ84L		 12.9
0.508"		 37.5
1.476"		 14
0.551"		 41.3
1.626"		 10.3
0.406"		 68
2.677"		 3
0.118"
TZ31L 13
0.512"		 31.5
1.240"		 16.5
0.650"		 34.9
1.374"		 6.4
0.252"		 74
2.913"		 5
0.197"
TZ105L 19.4
0.764"		 48.2
1.898"		 19.3
0.760"		 51
2.008"		 12.2
0.480"		 270
10.63"		 5
0.197"
TZ87L 12.9
0.508"		 37.5
1.476"		 14
0.551"		 41.3
1.626"		 10.3
0.406"		 6.8
2.677"		 3
0.118"
   
 
PCB Mountable type ( unit : mm/inch )
 
Model A(min) B(max) C(max) D(max) E(±3) F(±3) G(±5) H(±3)
TZ77SV
TZ77NV
TZ77V		 6.8
0.268"		 25
0.984"		 11
0.433"		 23.5
0.925"		 15.1
0.594"		 19.1
0.752"		 3
0.118"		 9.1
0.358"
TZ71V 8.9
0.350"		 27.5
1.083"		 17
0.669"		 25.3
0.996"		 15.1
0.594"		 19.1
0.752"		 3
0.118"		 15.1
0.594"
TZ76V
TZ84V		 12.9
0.508"		 39
1.535"		 14
0.551"		 37.5
1.476"		 25.2
0.992"		 32.8
1.291"		 3
0.188"		 12.1
0.476"
TZ105V 18.5
0.728"		 55.5
2.185"		 20.3
0.799"		 50.5
1.988"		 30.0
1.181"		 60.0
2.362"		 4
0.157"		 10.0
0.394"
 
 
  288-2, Misan-Dong , Sihung-City, Kyunggi-Do, South Korea, 425-050
Tel : (82 31) 315-8161, (82 31) 315-8162   Fax : (82 31) 315-8165
Copyright(c) 2004, TAEHWA TRANS CO., LTD. All Rights Reserved.