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Measuring relays and protection equipment - Part 1: Common requirements
60.60 Standard published
Measuring relays and protection equipment - Part 121: Functional requirements for distance protection
60.60 Standard published
Electrical relays - Part 12: Directional relays and power relays with two input energizing quantities
60.60 Standard published
Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection
60.60 Standard published
Electrical relays - Part 13: Biased (percentage) differential relays
60.60 Standard published
Measuring relays and protection equipment - Part 132: Functional requirements for directional power protection
20.99 WD approved for registration as CD
Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
60.60 Standard published
Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
60.60 Standard published
Measuring relays and protection equipment - Part 167: Functional requirements for directional overcurrent protection
30.60 Close of voting/ comment period
Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection
60.60 Standard published
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
60.60 Standard published
Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
60.60 Standard published
Measuring relays and protection equipment - Part 187-3: Functional requirements for differential protection - Line current differential protection
20.99 WD approved for registration as CD
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)
60.60 Standard published
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests
60.60 Standard published
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests
60.60 Standard published
Measuring relays and protection equipment - Part 216-3: Digital Interface - Test specification for protection data communication of Line Current Differential Protection
20.99 WD approved for registration as CD
Measuring relays and protection equipment - Part 21: Vibration, shock, bump and seismic tests requirements
30.60 Close of voting/ comment period