© A

LSTO

M 2

014.

All

right

s re

serv

ed.

A

B

C

Σ{IA, IB, IC}

A

B

C

0 ... x ... 1

REFIY

87T

A

B

C

254321 IIIII

Ibias

++++=

54

32

1I

II

II

I diff

++

++

=

Is2

Is1

K2

K1

Idiff

Ibias

RESTRAIN

TRIP

Is-HS1

Is-HS2

Is-cctfail

K-cctfailIs-CTS

© A

LSTO

M 2

014.

All

right

s re

serv

ed.