Settings - Siemens SIPROTEC 7SJ62 Instruction Manual

Voltage Connection
Nominal Frequency
Units of Length
6.1.1.1

Settings

Addr. Setting
201 CT Starpoint
202 Vnom PRIMARY
203 Vnom SECONDARY
204 CT PRIMARY
205 CT SECONDARY
206 Vph / Vdelta
207 CT N / CT Ph
208 CT Ns / CT Ph
209 PHASE SEQ.
210 TMin TRIP CMD
211 TMax CLOSE CMD
212 Bkr Closed I MIN
7SJ62 Manual
C53000-G1140-C121-1
Address  97 &RQQHFWLRQ specifies how the voltage transformers are connect-
ed. When the voltage transformers are connected in a wye configuration, address
 is set at 9DQ, 9EF, 9FQ. When the voltage transformers are connected as shown
in Figure A-12 of Appendix Section A.3, address should be set at 9DE, 9EF, 9*QG. The
latter setting is also selected when only two phase-to-phase voltage transformers are
utilized or when only the displaced voltage (zero sequence voltage) is connected to
the device.
Address  5DWHG )UHTXHQF\ corresponds to the frequency at which the protect-
ed equipment operate. The setting is dependent on the model number of the relay pur-
chased, and must be in accordance with the nominal frequency of the power system.
Address  'LVWDQFH 8QLW corresponds to the units of length (km or miles) ap-
plicable to fault locating. If a fault locator is not included with the device, or if the fault
locating function is disabled, this setting has no effect on operation of the device.
Changing the length unit will not result in an automatic conversion between the sys-
tems. Such conversions must be entered at the appropriate addresses.
In the list below, the setting ranges and default setting values for the pickup currents
are for a device with a nominal current rating I
= 1 A, divide the Setting Options values and Default Setting values by 5. Consider the
current transformer ratios when setting the device with primary values.
Setting Options
towards Line
towards Busbar
0.10 ~ 400.00 kV
100 ~ 125 V
10 ~ 50000 A
1 A
5 A
1.00 ~ 3.00
0.010 ~ 1.000
0.001 ~ 1.000
A B C
A C B
0.01 ~ 32.00 s
0.01 ~ 32.00 s
0.20 ~ 5.00 A
= 5 A. For a nominal current rating I
N
Default Setting
towards Line Location of CT starpoint
12.00 kV Primary Voltage
120 V Secondary Voltage
100 A CT Rated Primary Current
1
5 A ) CT Rated Secondary Current
1.73 Phase to open delta voltage conver-
sion factor
1.000 Neutral CT to Phase CT conversion
factor
1.000 Neutral I
sion factor
A B C Phase sequence
0.15 s Minimum Trip Command Duration
1.00 s Maximum Close Command Duration
1
0.20 A ) Closed Breaker Min. Current
Threshold
Functions
N
Comment
CT to Phase CT conver-
Ns
6-11