ABB RELION 630 Series Product Manual page 6

Generator Protection and Control
REG630
Product version: 1.3
3I
3I
3U
Io
Uo
3U
EXC.
AVR
3I
3I
REK510
U
fn
Io
Io
Uo
GUID-42A3A43D-4F62-4541-AB39-D662B21769AB V1 EN
Figure 3. Medium-sized generator in block connection with a transformer
The protection is implemented with two REG630 generator
protection relays and one REF630 feeder terminal. One
REG630 is taking care of protecting the generator itself, the
second REG630 is protecting the power transformer with
6
REF630
U
Preconf.
12
ANSI IEC
25 SYNC
27/47U+ 3U</U1<
46 I2>
50N/51N Io>>>
50P/51P 3I>>>
51BF/51NBF 3I>/Io>BF
51P-1/51P-2 3I>/3I>>
59/47O- 3U>/U2>
59G Uo>
60 FUSEF
67N-1/67N-2 Io>→/Io>>→
68 3I2f>
REG630
Preconf.
ANSI IEC
32R/32O P>→
40 X<
46G/46M I2>G/M
51BF/51NBF 3I>/Io>BF
51N-1/51N-2 Io>/Io>>
51P-1/51P-2 3I>/3I>>
59 3U>
59G Uo>
81U/81R f</df/dt
87T 3ΔI>T
REG630
Preconf.
ANSI IEC
21GT Z<GT
24 U/f>
27 3U<
27/59THD ΔU >/Uo>
03f
32R/32O P>→
49T/G 3Ith>T/G
51BF/51NBF 3I>/Io>BF
51P-1/51P-2 3I>/3I>>
59 3U>
59G Uo>
60 FUSEF
64R Io>R
n
n
n
available transformer differential protection function and
REF630 is protecting and controlling the feeder part of this
application.
1MRS757583 C
ABB