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Measuring relays and protection equipment - Part 118-1: Synchrophasor for power systems - Measurements
Standard published on 17.12.2018
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Electrical relays - Part 12: Directional relays and power relays with two input energizing quantities
(Relais electriques - Douzieme partie: Relais directionnels et relais de puissance a deux grandeurs d´alimentation d´entree)
Standard published on 1.1.1980
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Measuring relays and protection equipment - Part 121: Functional requirements for distance protection
(Relais de mesure et dispositifs de protection - Partie 121: Exigences fonctionnelles pour protection de distance)
Standard published on 7.3.2014
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Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection
(Relais de mesure et dispositifs de protection - Partie 127: Exigences fonctionnelles pour les protections a minimum et maximum de tension)
Standard published on 27.4.2010
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Electrical relays - Part 13: Biased (percentage) differential relays
(Relais electriques - Treizieme partie: Relais differentiels a pourcentage)
Standard published on 1.1.1980
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Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
(Relais de mesure et dispositifs de protection - Partie 149: Exigences fonctionnelles pour les relais electriques thermiques)
Standard published on 30.7.2013
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Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
(Relais de mesure et dispositifs de protection - Partie 151: Exigences fonctionnelles pour les protections a minimum et maximum de courant)
Standard published on 28.8.2009
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Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection
(Relais de mesure et dispositifs de protection – Partie 181: Exigences fonctionnelles relatives aux protections de frequence)
Standard published on 27.2.2019
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Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
(Relais de mesure et dispositifs de protection - Partie 187-1: Exigences fonctionnelles pour la protection differentielle - Protection differentielle avec et sans caracteristique de retenue des moteurs, generateurs et transformateurs)
Standard published on 28.7.2021
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Corrigendum 1 - Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
(Corrigendum 1 - Relais de mesure et dispositifs de protection - Partie 187-1: Exigences fonctionnelles pour la protection differentielle - Protection differentielle avec et sans caracteristique de retenue des moteurs, generateurs et transformateurs)
Correction published on 21.4.2023
Selected format:Latest update: 2026-07-26 (Number of items: 2 290 396)
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