6. ACCEPTANCE TESTS

6.8. INPUTS

6.8.1 DIGITAL INPUTS

Log into the relay using the GE_LOCAL software and press INPUTS / OUTPUTS button on the first general screen.

∙Check that applying dc rated voltage between terminals:

C9

and

D10

(CC1)

D9

and

D10

(CC2)

C10

and

D10

(CC3)

C11

and

D12

(CC4)

D11

and

D12

(CC5)

C12

and

D12

(CC6)

their corresponding status windows turn red while the applied voltage remains present.

If the relay has the optional expansion board, check the same for the following contact converter inputs:

E7

and

E8

(CC7)

F7

and

E8

(CC8)

E9

and

F8

(CC9)

F9

and

F8

(CC10)

E10

and

E11

(CC11)

F10

and

E11

(CC12)

E12

and

F11

(CC13)

F12

and

F11

(CC14)

6.8.2 IRIG-B SYNCHRONIZING INPUT

Connect the output of an IRIG-B unit with decoded output to the IRIG-B input at the rear of the DBF. Special care must be taken when making the connection because the input is polarized.

Check that the time measured by the two units is the same.

32

DBF Breaker Failure Protection

GEK-106168E

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Image 39
GE GEK 106168E manual Digital Inputs, IRIG-B Synchronizing Input
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