Table of Contents
Advertisement
=
I A
t o t a l pha s e A cu r r e n t i n r e l ay i n ampe r e s rms
=
I s
tot a l pha s e B cu r r e n t in r e l ay in ampe r e s rms
=
I c
to t a l pha s e C cu r r e n t in r e lay in ampe r e s rms
=
I T
r e l ay cu r r e n t du r i ng t e s t in ampe r e s rms
=
T
r e l ay vo l ta ge r e s t r a i n t s e t t i ng in pe r c e n t
=
pha s e A t o pha s e B vol t age i n vol t s rms
VAs
=
pha s e B to pha s e C vo l t age in vo l t s rms
Vs c
=
pha s e C to pha s e A vo l t a ge in vol t s rms
VcA
=
pos i t i v e s equence of VAs vo l t age in vol t s r m s
V As l
=
pos i t i ve s equence o f Vsc vo l tage i n vol t s rms
Vs c 1
=
pos i t i ve s equ ence of Vc A vol t age in vol t s rms
Ve Al
=
r e l ay vo l t a ge du r i ng t e s t in vol t s r m s
V T
=
s y s t em pos i t i v e s equence phas e to neu t r a l i mpeda nce i n ohm s
Z 1
=
l i n e pos i t i ve s equence pha s e t o ne u t r a l impedance i n ohms
Z 1 L
=
sou r c e pos i t i ve s equ e nce pha s e to neu t r a l impedance i n ohms
Z 1s
=
l i ne nega t i v e s equence pha se to ne u t r a l i mpedance i n ohms
Z 2 L
=
sou r c e neg a t i ve s equ ence pha s e to neu t r a l impedance i n ohms
Z 2s
=
s y s t em impedance between r e l ay loca t i on a nd fau l t loca t ion i n
Z F
ohms
=
r e lay r each in ohm s
Z R
=
ba s e r each t ap i n pos i t ive s equence ohm s
Z Rl
ac:
=
pha s e ang l e me t e r r ead i ng du r i ng t e s t i n deg r e e s
=
¢
r e lay ba s e r each ang l e i n deg r e e s
G E K-49861
APPENDIX I
DEFINITION OF SYMBOLS
3 1
Advertisement
Table of Contents
