| Publication CODE |
Title |
| NBN EN 60255-121:2014 (2014-07) |
MEASURING RELAYS AND PROTECTION EQUIPMENT
PART 121: FUNCTIONAL REQUIREMENTS FOR DISTANCE PROTECTION |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3 P.. |
Description
Specifies minimum requirements for functional and performance evaluation of distance protection function typically used in, but not limited to, line applications for effectively earthed, three-phase power systems.
This standard also defines how to document and publish performance tests.
This standard covers distance protection function whose operating characteristic can be defined on an impedance plane and includes specification of the protection function, measurement characteristics, phase selection, directionality, starting and time delay characteristics.
The test methodologies for verifying performance characteristics and accuracy are included in this standard. The standard defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. It also includes the instrument transformer requirements for the protection function.
The general requirements for measuring relays and protection equipment are defined in IEC 60255-1.
|
| Class |
C63
(INSTALLATION EQUIPMENT LOW VOLTAGE INDUSTRIAL EQUIPMENT)
|
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 60255-121:2014.
For the series NBN EN 50XXX, the standards are however complete.
|
DE version
|
EN version
|
FR version
|
|
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
|
|
| Committee |
TC 95
MEASURING RELAYS AND PROTECTION EQUIPMENT
|
| Responsible |
Ir DELENS Marc
|
| BEC Approval |
2014-04-11 |
| NBN Approval |
2014-08-22 |
| Belgian Official Journal |
2014-10-14 |
| Registration |
146800 |
| ICS-Code (International Standards Classification) |
29.120.70
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2014-04-11 |
| Date of availability (d.a.v.) |
2014-07-04 |
| Date of announcement (d.o.a.) |
2014-07-11 |
| Date of publication (d.o.p.) |
2015-01-11 |
| Date of withdrawal former edition (d.o.w.) |
2017-04-11 |
|
