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Application Notes
P54x/EN AP/La4
MiCOM P543, P544, P545 & P546
(AP) 6-17
AP
Zone 3 may also be programmed with a slight reverse (“rev”) offset, in which case its reach
in the reverse direction is set as a percentage of the protected line impedance too. This
would typically provide back-up protection for the local busbar, where the offset reach is set
to 20% for short lines (<30 km) or 10% for longer lines.
Zone P is a reversible directional zone. The setting chosen for Zone P, if used at all, will
depend upon its application. Typical applications include its use as an additional time
delayed zone or as a reverse back-up protection zone for busbars and transformers. Use of
zone P as an additional forward zone of protection may be required by some users to line up
with any existing practice of using more than three forward zones of distance protection.
The Zone 4 elements may also provide back-up protection for the local busbar. Where zone
4 is used to provide reverse directional decisions for Blocking or Permissive Overreach
schemes, zone 4 must reach further behind the relay than zone 2 for the remote end relay.
In such cases the reverse reach should be as below (depends on characteristic used):
Mho: Z4
((Remote zone 2 reach) x 120%)
Quadrilateral: Z4
((Remote zone 2 reach) x 120%) minus the protected line impedance
Note:
In the case of the mho, the line impedance is not subtracted. This
ensures that whatever the amount of dynamic expansion of the circle,
the reverse looking zone will always detect all solid and resistive faults
capable of detection by zone 2 at the remote line end.
2.3.7
Quadrilateral phase resistive reaches (Distance option only)
Two setting modes are possible for resistive reach coverage:
Common
-
In this mode, all zones share one common fault resistive reach setting
Proportional
-
With this mode, the aspect ratio of (zone reach): (resistive reach) is
the same for all zones. The “Fault Resistance” defines a reference
fault at the remote end of the line, and depending on the zone reach
percentage setting, the resistive reach will be at that same
percentage of the Fault Resistance set. For example, if the zone 1
reach is 80% of the protected line, its resistive reach will be 80% of
the reference “Fault Resistance”.
Proportional setting is used to mimic Germanic protection practice, and to avoid zones being
excessively broad (large resistive reach width compared to zone reach length). In general,
for easiest injection testing, the aspect ratio of any zone is best within the 1 : 15 range:
1/15th
Z reach / R reach setting
15
The resistive reach settings (RPh and RG) should be selected according to the utility
practice. If no such guidance exists, a starting point for Zone 1 is:
Cables
- Choose Resistive Reach = 3 x Zone 1 reach
Overhead lines
- Choose Resistive Reach according to the following formula…
Resistive reach = [2.3 - 0.0045 x Line length (km)] x Zone 1
reach
Lines longer than 400 km - Choose: 0.5 x Zone 1 reach
Содержание MiCOM P54 Series
Страница 2: ......
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Страница 5: ...Safety Section P54x EN SS H11 SS SAFETY SECTION...
Страница 6: ...P54x EN SS H11 Safety Section SS...
Страница 8: ...P54x EN SS H11 Safety Section SS 2 SS...
Страница 16: ...P54x EN IT La4 Introduction MiCOM P543 P544 P545 P546 IT...
Страница 18: ...P54x EN IT La4 Introduction IT 1 2 MiCOM P543 P544 P545 P546 IT...
Страница 28: ...P54x EN IT La4 Introduction IT 1 12 MiCOM P543 P544 P545 P546 IT...
Страница 30: ...P54x EN TD La4 Technical Data MiCOM P543 P544 P545 P546 TD...
Страница 58: ...P54x EN GS La4 Getting Started MiCOM P543 P544 P545 P546 GS...
Страница 78: ...P54x EN ST La4 Settings MiCOM P543 P544 P545 P546 ST...
Страница 172: ...P54x EN ST La4 Settings ST 4 94 MiCOM P543 P544 P545 P546 ST...
Страница 174: ...P54x EN OP La4 Operation MiCOM P543 P544 P545 P546 OP...
Страница 362: ...P54x EN OP La4 Operation OP 5 188 MiCOM P543 P544 P545 P546 OP Figure 118 Auto relose timing diagram leader follower 1ph...
Страница 432: ...P54x EN OP B94 Operation OP 5 260 MiCOM P543 P544 P545 P546 OP Figure 61 CB2 synch check signals...
Страница 442: ...P54x EN OP B94 Operation OP 5 270 MiCOM P543 P544 P545 P546 OP...
Страница 444: ...P54x EN AP La4 Application Notes MiCOM P543 P544 P545 P546 AP...
Страница 534: ...P54x EN PL La4 Programmable Logic MiCOM P543 P544 P545 P546 PL...
Страница 538: ...P54x EN PL La4 Programmable Logic PL 7 4 MiCOM P543 P544 P545 P546 PL...
Страница 602: ...P54x EN PL La4 Programmable Logic PL 7 68 MiCOM P543 P544 P545 P546 Output Contacts PL...
Страница 603: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 69 Output Contacts PL...
Страница 606: ...P54x EN PL La4 Programmable Logic PL 7 72 MiCOM P543 P544 P545 P546 PL...
Страница 616: ...P54x EN PL La4 Programmable Logic PL 7 82 MiCOM P543 P544 P545 P546 Output Contacts PL...
Страница 619: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 85 PL...
Страница 620: ...P54x EN PL La4 Programmable Logic PL 7 86 MiCOM P543 P544 P545 P546 PL...
Страница 621: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 87 PL...
Страница 624: ...P54x EN PL La4 Programmable Logic PL 7 90 MiCOM P543 P544 P545 P546 PL...
Страница 629: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 95 Output Contacts PL...
Страница 630: ...P54x EN PL La4 Programmable Logic PL 7 96 MiCOM P543 P544 P545 P546 PL...
Страница 631: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 97 PL...
Страница 633: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 99 PL...
Страница 637: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 103 PL...
Страница 641: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 107 Output Contacts PL...
Страница 642: ...P54x EN PL La4 Programmable Logic PL 7 108 MiCOM P543 P544 P545 P546 Output Contacts PL...
Страница 643: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 109 LEDs PL...
Страница 644: ...P54x EN PL La4 Programmable Logic PL 7 110 MiCOM P543 P544 P545 P546 PL...
Страница 645: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 111 PL...
Страница 647: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 113 PL...
Страница 653: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 119 Output Contacts PL...
Страница 655: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 121 Output Contacts PL...
Страница 656: ...P54x EN PL La4 Programmable Logic PL 7 122 MiCOM P543 P544 P545 P546 LEDs PL...
Страница 663: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 129 PL...
Страница 667: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 133 Output Contacts PL...
Страница 669: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 135 Output Contacts PL...
Страница 671: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 137 PL...
Страница 672: ...P54x EN PL La4 Programmable Logic PL 7 138 MiCOM P543 P544 P545 P546 PL...
Страница 676: ...P54x EN PL La4 Programmable Logic PL 7 142 MiCOM P543 P544 P545 P546 PL...
Страница 681: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 147 Output Contacts PL...
Страница 688: ...P54x EN PL La4 Programmable Logic PL 7 154 MiCOM P543 P544 P545 P546 PL...
Страница 689: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 155 PL...
Страница 690: ...P54x EN PL La4 Programmable Logic PL 7 156 MiCOM P543 P544 P545 P546 PL...
Страница 696: ...P54x EN PL La4 Programmable Logic PL 7 162 MiCOM P543 P544 P545 P546 Output Contacts PL...
Страница 698: ...P54x EN PL La4 Programmable Logic PL 7 164 MiCOM P543 P544 P545 P546 PL...
Страница 701: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 167 PL...
Страница 703: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 169 PL...
Страница 704: ...P54x EN PL La4 Programmable Logic PL 7 170 MiCOM P543 P544 P545 P546 PL...
Страница 705: ...Programmable Logic P54x EN PL La4 MiCOM P543 P544 P545 P546 PL 7 171 PL...
Страница 706: ...P54x EN PL La4 Programmable Logic PL 7 172 MiCOM P543 P544 P545 P546 LEDs PL...
Страница 708: ...P54x EN MR La4 Measurements and Recording MiCOM P543 P544 P545 P546 MR...
Страница 710: ...P54x EN MR La4 Measurements and Recording MR 8 2 MiCOM P543 P544 P545 P546 MR...
Страница 726: ...P54x EN FD La4 Firmware Design MiCOM P543 P544 P545 P546 FD...
Страница 748: ...P54x EN CM La4 Commissioning MiCOM P543 P544 P545 P546 CM...
Страница 754: ...P54x EN CM La4 Commissioning CM 10 6 MiCOM P543 P544 P545 P546 CM...
Страница 832: ...P54x EN CM La4 Commissioning CM 10 84 MiCOM P543 P544 P545 P546 CM Commissioning Engineer Customer Witness Date Date...
Страница 874: ...P54x EN MT La4 Maintenance MiCOM P543 P544 P545 P546 MT MT...
Страница 876: ...P54x EN MT La4 Maintenance MT 11 2 MiCOM P543 P544 P545 P546 MT...
Страница 882: ...P54x EN TS La4 Troubleshooting MiCOM P543 P544 P545 P546 TS...
Страница 884: ...P54x EN TS La4 Troubleshooting TS 12 2 MiCOM P543 P544 P545 P546 TS...
Страница 894: ...P54x EN SC La4 SCADA Communications MiCOM P543 P544 P545 P546 SC...
Страница 928: ...P54x EN SG La4 Symbols and Glossary MiCOM P543 P544 P545 P546 SG...
Страница 938: ...P54x EN SG La4 Symbols and Glossary SG 14 10 MiCOM P543 P544 P545 P546 SG...
Страница 940: ...P54x EN IN La4 Installation MiCOM P543 P544 P545 P546 IN...
Страница 947: ...Installation P54x EN IN La4 MiCOM P543 P544 P545 P546 IN 15 7 IN P0147ENd Figure 2 Rack mounting of panel mount relays...
Страница 957: ...Installation P54x EN IN La4 MiCOM P543 P544 P545 P546 IN 15 17 IN 10P54400_1 Figure 10 P544 external connection diagram...
Страница 966: ...P54x EN IN La4 Installation IN 15 26 MiCOM P543 P544 P545 P546 IN Figure 19 P546 external connection diagram...
Страница 973: ...Installation P54x EN IN La4 MiCOM P543 P544 P545 P546 IN 15 33 IN Figure 26 P546 Final assembly drawing...
Страница 974: ...P54x EN IN La4 Installation IN 15 34 MiCOM P543 P544 P545 P546 IN...
Страница 976: ...P54x EN VH La4 Firmware and Service Manual Version History MiCOM P543 P544 P545 P546 VH...
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