P846/EN ST/D
Settings
(ST) 4-6
MiCOM P846
ST
Setting Range
Menu Text
Default Setting
Min. Max.
Step Size
CVT Enabled
Enabled
Disabled/Enabled
To enable (activate) or disable (turn off) the potential transformer alarm function.
CVT Threshold
10%
1
100
0.1%
Sets a maximum threshold for the ratio of negative sequence voltage V2 over the sum of
positive and negative sequence voltages (V1 +V2). Exceeding this threshold for a fixed
period of time of 2 minutes will arm the CVT alarm.
Tie-line Factor
Disabled
Disabled/Enabled
To enable (activate) or disable (turn off) the tie-line factor. Enabled when the relay is
connected to a tie line, usually a short line that may have very low transit
Base Power
2.081G
0
5.000 G
1 W
Sets the nominal base power (SIL:surge impedance loading) of the line.
Line charging
20.81 M
0
5.000 G
1 Var
Sets the nominal line charging MVARs
The rest of the settings are discussed in the same order in which they are displayed in the
relay menu.
1.2.2
Supervision (VTS)
The VTS feature within the relay operates on detection of negative phase sequence (nps)
Setting Range
Menu Text
Default Setting
Min. Max.
Step Size
SUPERVISION
GROUP 1
VT SUPERVISION
Sub-heading
VTS Status
Blocking
Blocking, Indication
This setting determines whether the following operations will occur upon detection of VTS.
•
VTS set to provide alarm indication only.
•
Optional blocking of voltage dependent protection elements.
VTS Reset Mode
Manual
Manual, Auto
The VTS block will be latched after a user settable time delay ‘VTS Time Delay’. Once the
signal has latched then two methods of resetting are available. The first is manually via the
front panel interface (or remote communications) and secondly, when in ‘Auto’ mode,
provided the VTS condition has been removed and the 3 phase voltages have been
restored above the phase level detector settings for more than 240 ms.
VTS Time Delay
5 s
1 s
10 s
0.1 s
Setting that determines the operating time-delay of the element upon detection of a voltage
supervision condition.
VTS
Ι
> Inhibit
20 kA
160 A
64 kA
20 A
The setting is used to override a voltage supervision block in the event of a phase fault
occurring on the system that could trigger the voltage supervision logic. Default setting
and setting range specified here are for a primary CT ratio of 2000:1 A
Содержание MiCOM P846
Страница 2: ......
Страница 4: ......
Страница 5: ...Safety Section P846 EN SS H11 SS SAFETY SECTION...
Страница 6: ...P846 EN SS H11 Safety Section SS...
Страница 8: ...P846 EN SS H11 Safety Section SS 2 SS...
Страница 16: ...P846 EN IT D Introduction MiCOM P846 IT...
Страница 18: ...P846 EN IT D Introduction IT 1 2 MiCOM P846 IT...
Страница 26: ...P846 EN TD D Technical Data MiCOM P846 TD...
Страница 38: ...P846 EN GS D Getting Started MiCOM P846 GS...
Страница 58: ...P846 EN ST D Getting Started MiCOM P846 ST...
Страница 60: ...P846 EN ST D Settings ST 4 2 MiCOM P846 ST...
Страница 78: ...P846 EN OP D Operation MiCOM P846 OP...
Страница 104: ...P846 EN OP D Operation OP 5 26 MiCOM P846 OP...
Страница 106: ...P846 EN AP D Application Notes MiCOM P846 AP...
Страница 108: ...P846 EN AP D Application Notes AP 6 2 MiCOM P846 AP...
Страница 122: ...P846 EN AP D Application Notes AP 6 16 MiCOM P846 AP...
Страница 124: ...P846 EN PL D Programmable Logic MiCOM P846 PL...
Страница 126: ...P846 EN PL D Programmable Logic PL 7 2 MiCOM P846 PL...
Страница 144: ...P846 EN MR D Measurements and Recording MiCOM P846 MR...
Страница 146: ...P846 EN MR D Measurements and Recording MR 8 2 MiCOM P846 MR...
Страница 160: ...P846 EN FD D Firmware Design MiCOM P846 FD...
Страница 182: ...P846 EN CM D Commissioning MiCOM P846 CM...
Страница 228: ...P846 EN CM D Commissioning CM 10 46 MiCOM P846 CM...
Страница 230: ...P846 EN MT D Maintenance MiCOM P846 MT...
Страница 232: ...P846 EN MT D Maintenance MT 11 2 MiCOM P846 MT...
Страница 238: ...P846 EN TS D Troubleshooting MiCOM P846 TS...
Страница 240: ...P846 EN TS D Troubleshooting TS 12 2 MiCOM P846 TS...
Страница 252: ...P846 EN SC D SCADA Communications MiCOM P846 SC...
Страница 272: ...P846 EN SG D Symbols and Glossary MiCOM P846 SG...
Страница 280: ...P846 EN SG D Symbols and Glossary SG 14 8 MiCOM P846 SG...
Страница 282: ...P846 EN IN D Installation MiCOM P846 IN...
Страница 284: ...P846 EN IN D Installation IN 15 2 MiCOM P846 IN...
Страница 293: ...Installation P846 EN IN D MiCOM P846 IN 15 11 7 P846 CASE DIMENSIONS Figure 3 Case dimensions IN...
Страница 295: ...Installation P846 EN IN D MiCOM P846 IN 15 13 P1756ENa IN Figure 5 Model B with 32 output contacts and 24 digital inputs...
Страница 296: ...P846 EN IN D Installation IN 15 14 MiCOM P846 IN...
Страница 297: ......