Product Abstract
Zero Phase
Current Transformer
Current Transformer
 
CT Introduction
Electronic Watt
Hour Meter CT
EMPR CT
Current Senser CT
Current TransFormer Introduction
CT is divided according to alteration rate of error factor and phase angle from 0.1grade ,0.2grade (standard CT) to 0.5grade,1.ograde,3.0grade (general CT ).
CT is used according to accuracy rate to an electronic watt hour Meter (0.2grade--1.0grade) ,EOCR. EMPR and other current sensor (1.0grade--3.0grade)
 
The limit of standard CT ratio error and phase angle
Ratio Error(%) Phase Angle(Min)
0.025In 0.05In 0.2In 1.0In 1.2In 0.025In 0.05In 0.2In 1.0In 1.2In
0.1급 ±0.20 ±0.16 ±0.12 ±0.10 ±0.10 ±10 ±8 ±6 ±5 ±5
0.2급 ±0.6 ±0.5 ±0.3 ±0.2 ±0.2 ±30 ±25 ±15 ±10 ±10
In shows regular frequency's regular primary current
 
The limit of general meter CT ratio error and phase angle
Ratio Error(%) Phase Angle(Min)
0.05In 0.2In 1.0In 0.05In 0.2In 1.0In
0.5 급 ±1.5 ±0.75 ±0.5 ±90 ±45 ±30
1.0 급 ±3.0 ±1.5 ±1.0 ±180 ±90 ±60
3.0 급 0.5In~1.0In ±3.0 0.5In~1.0In ±180
In shows regular frequency's regular primary current
 
Business registered number : 301-81-57822 | C.E.O. : lee kwang hun
Address : 24 dowonli nesuwub cheongwongun chungbuk korea
E-mail : master@seunghwa.com
Tel 043)216-4041~2 Fax 043)216-4043
Copyright ⓒ 2003 Seunghwa co., ltd All Right Reserved.