Transcription of 전기설비의검사,점검및시험[ - keea.or.kr
1 , . / / . EOCR( )/ . ( ) / . (2) . ( ) . ( ) . 1.. ( ) 3 3 . 2. Angle Meter . 3.. 4. ( ) Acs . 5. , Acs .. ( ) ~ . 6. ( ). 7. , (Meter ) .. , . 1. , .. (1) (PT : Potential Transformer) .. ( ) (Polarity) : (Substractive) . 0 . ( ) (Secondary Burden). V2. 2 KS (HSC-1702). VA=. Zb 100. V2 = 2 (Volt) 2 110V or 3. Zb = 2 Ohm(Meter, Relay 2 . 2 (%) ( :min). ). 80%~120% 80%~120%. 20 . 40 (ESB. 120 143-310~385) . 0 PT 2 . : . 25% ~ 100% ( lagging current). PT 3 ( ) : . 0 . ESB 143-310~385 3 .. ( ) Fusing . 2 Fuse . 2 . 120 . (Open Delta) 2 Voltage Regulator . ) 1 2 25% ~ 100% . Relay Fuse . ( = ) . Fuse . 3 . ( ) (Accuracy Class).. ) 2 3 3 . 8 . ( = ) . (KSC-1701). 3 . (2) .. CT PT .. (PD) .. 1 . , . , Lock .. 2 2003. 6.. ( ) ON OFF . , .. 1 2 ( ) .. ( ) ( ). 1 Earth 2 - E 3 - E 1 - 2 1 - 3 2 - 3 . 1 . 1000V Meggar 2 . 500V Meggar .. - 30 - 50 .. - 30 .. - 50 2 . 0 . 0 . 1 (CT ) 2 (PT .. ) ( ~ ) . 2 - 10 . , 2 1 . 3 - 10 .. 2 -3 5 . OFF - . 1 - 100 ~ 10 . , + . 1 -2,3 100 ~ 10.
2 ON . 0 . 2 Tap .. ( ) .. 1 . , . 200V 1 .. ON/OFF .. 154 /110V 1 . 3. , . 2 1V E2 : 2 .. V2 : 2 . 1 N : . 2 Ih : CT .. Im : . Ie : .. Zp, Zs : 1 , 2 . Zb : 2 (Relay, Meter, Cable . ( ) ).. 2 ( ) (Accuracy Class). ESB-145. 1 . Lead .. 0 . (3) (Current Transformer) . B-1 (25VA) C 100 T 100 (2 . ( ) (Polarity) : (Substractive) 1 . B-2 (50VA) C 200 T 200 ) .. B - 4 C 400 T 400 . 10% . B - 8 C 800 T 800 . T (Wound type) .. 0 . (%) ( ).. in in in in ( ). ( ) 62 128. 0 CT (a) Vector (b) (45VA). In 1 . ( ) (Secondary Burden) . VA = I1 2Zb " . I1 : 1 .". I2 : 2 Alfred, Lord Tennyson( )[ , 1809-92]. 4 2003. 6.
