Difference between revisions of "N-1 Criterion"
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==== [[New Zealand]] ==== | ==== [[New Zealand]] ==== | ||
{{definition|('''N-‘k’''') criterion denotes that the system is planned such that with all transmission facilities in service the system is in a secure state and for any ‘k’ credible contingency event(s) the system moves to a satisfactory state. If any further contingency events were to occur loads may have to be shed to return to a satisfactory state. <ref>[https://ea.govt.nz/dmsdocument/3859 Transpower Main Transmission System Planning Guideline]</ref>}}The single contingencies to be considered under an N-1 criterion are: | {{definition|('''N-‘k’''') criterion denotes that the system is planned such that with all transmission facilities in service the system is in a secure state and for any ‘k’ credible contingency event(s) the system moves to a satisfactory state. If any further contingency events were to occur loads may have to be shed to return to a satisfactory state. <ref>[https://ea.govt.nz/dmsdocument/3859 Transpower Main Transmission System Planning Guideline]</ref>}}The single contingencies to be considered under an N-1 criterion are: | ||
| − | + | * loss of a single transmission circuit | |
| − | + | * loss of a single generator | |
| − | + | * loss of an HVDC pole | |
| − | + | * loss of a single bus section | |
| − | + | * loss of an interconnecting transformer | |
| − | + | * loss of a single shunt connected reactive component, e.g. capacitor bank, SVC | |
<br/> | <br/> | ||
| + | |||
==== [[Philippines]] ==== | ==== [[Philippines]] ==== | ||
{{definition|N-1 Criterion specifies that the Grid shall continue to operate in the Normal State following the loss of one Generating Unit, transmission line, or transformer. <ref>[http://www.erc.gov.ph/Files/Render/media/N-1OperationalCriteria.pdf Grid Management Committee Philippines / Section 6.2.2.3 of the Philippine Grid Code]</ref>}}<br/> | {{definition|N-1 Criterion specifies that the Grid shall continue to operate in the Normal State following the loss of one Generating Unit, transmission line, or transformer. <ref>[http://www.erc.gov.ph/Files/Render/media/N-1OperationalCriteria.pdf Grid Management Committee Philippines / Section 6.2.2.3 of the Philippine Grid Code]</ref>}}<br/> | ||
Revision as of 17:12, 5 February 2017
Contents
Definitions
European Definitions
ENTSO-E
(N-1)-Criterion: The rule according to which elements remaining in operation within TSO’s Responsibility Area after a Contingency from the Contingency List must be capable of accommodating the new operational situation without violating Operational Security Limits. [1]
National Definitions
New Zealand
(N-‘k’) criterion denotes that the system is planned such that with all transmission facilities in service the system is in a secure state and for any ‘k’ credible contingency event(s) the system moves to a satisfactory state. If any further contingency events were to occur loads may have to be shed to return to a satisfactory state. [2]
The single contingencies to be considered under an N-1 criterion are:
- loss of a single transmission circuit
- loss of a single generator
- loss of an HVDC pole
- loss of a single bus section
- loss of an interconnecting transformer
- loss of a single shunt connected reactive component, e.g. capacitor bank, SVC
Philippines
N-1 Criterion specifies that the Grid shall continue to operate in the Normal State following the loss of one Generating Unit, transmission line, or transformer. [3]
Switzerland
(n-1)-Kriterium: Bezeichnet ein Prinzip, dessen Einhaltung den sicheren Netzbetrieb auch dann gewährleistet, wenn ein beliebiges einzelnes Element des Systems ausgefallen ist. [4]
