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Subaddress
Parameter
Selection
2001
Fl.f'lction
Enable or Disable
2002
Ct.rVe
hverse,
Shcrt hverse,
Lm g Inverse,
Moderately Inverse,
Very hverse,
Extremely Inverse,
Defi1ite Inverse,
Sightly Inverse,
12Tw/o Umit
2003
Pickup
5 A CT's:0.5- 20A
or
1
ACTS:
0.1 - 4 A
1
2005
Time Dial
0.1 -9.9
2006
Fiter
rms or Ft.ndamental
1
2007
lrrpedance
0-90°
1
2008
Direction
Forward or Reverse
2010
Freeze\Nfm1
on Picl<up, on Trip,
or None
1
2011
Freeze \Nfm2
on
Pic!<~.
on Trip,
or None
Table 3.14
67N Directional NeutraVGround ConfiguratiOn,
Major Block 2000
~is
protection function is similar to the directional phase
t1me overcurrent function described in section 3.7.9, except
that the protection responds to current input to the fourth
(lntema~
CT.
The
form of protection proW:ied depends on
the manner in which the external CTs are connected to the
ISGS relay. Rgure 3.4 shows the correct
CT
connections
and polarities.
.Application of function 67N requires 3 VTs connected line-
to-ground n order to determine direction.
The
relay uses
3Vo as the polarizing quantity.
The settings for directional neutraVground time overcurrent
(?7N) are independent of the settings for directional phase
time overcurrent (67) and the nondirectional overcurrent set-
tings (50, 50N, 51, and 51N).
3. 7.11 Overvoltage 59 (Address 2200)
Use.
ths address block to change the overvoltage protection
sett1ngs. The voltage type, pickup value, and time charac-
teristic may be specified. Refer to Appendix A for detailed
trip
curve informatK:Jn. Ths protection function is available
only
if.
the voltage input option is nstal1ed on the relay. The
assooated relay subaddresses are listed in Toole 3. 15.
Siemens Energy & Automation, Inc.
3
Operation
Subaddress
Parameter
Selection
2201
Function
Enable or Disable
2202
Curve
Deff1ite Time,
Inverse Time
2203
TripOn Volt
Line-to-Neutral,
Line-to-Li1e
(
2204
Pickup
40- 260V
1
2205
Time Delay (deff1ite
0.1-00.0s
time)
1
2206
lime Dial
~nverse
0.1-9.9
time
2210
Freeze \Nfm 1
on Picl<up, on
Trip,
or None
1
2211
Freeze 1Mm2
on Pekup, on Trip,
or None
Table 3.15
59 Overvoltage Conf1gurat1on, Major Block 2200
Ths protection element responds to an overvoltage condi-
tion
as
determined by the protection settings.
The
element
~ay
be:
disab~ed
or enabled (2201), the voltage type which
IS
mon1tored
IS
selected (2203), and the voltage value for
pickup (2204) is specified.
If the vrs are connected line-to-neutral, the voltage t-,pe
selected can be either line-to-line or line-to-neutral. If the
VTs are connected line-to-line, only the line-to-line voltage
type may be selected. In either case, the maximum normal
voltage wouk:::1 be 150 volts
as
measured line-to-line.
The
trip delay can be selected
as
either definite time or
~nverse.time
.(2202). If definite time is selected, the trip delay
IS
specified
n
seconds at address 2205. If inverse time is
selected, the time dial value is specified in address
2206 .
Each of the two waveform capture buffers can be indepen-
d~tly
programmed to freeze the snapshot on pickup, on
trip, or not at al (221 0 and 2211). For this protection ele-
ment, the default for both buffers is "None." These settings
are not included in the alternate parameter sets.
3.7 .12 Undervoltage 27 (Address 2300)
Use this address block to change the undervoltage protec-
tion settings. The voltage type, pickup value, and time char-
acteristic may be specified. Refer to Appendix A for detaied
trip curve information. This protective function is available
only
if.
the voltage input option is installed on the relay. The
assoc1ated relay subaddresses are listed in Table 3. 16.
25
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