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Standards [CURRENT]

UNE-EN 15869-2

Inland navigation vessels - Electrical shore connection, three phase current 400 V, 50 Hz, up to 125 A - Part 2: On-shore unit, additional requirements
Edition 2020-07-01

Standards [CURRENT]

UNE-IEC/TR 60909-2 IN

Short-circuit currents in three-phase a.c. systems - Part 2: Data of electrical equipment for short-circuit current calculations.
Edition 2010-02-17

Standards [CURRENT]

UNE 21239-4 IN

Short-circuit currents in three-phase a.c. systems - Part 4: Examples for the calculation of short-circuit currents
Edition 2002-05-30

Standards [CURRENT]

IEEE C 57.12.40

IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
Edition 2017

Standards [CURRENT]

NEMA C 57.12.24

Transformers Underground-Type Three-Phase Distribution Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 480 Volts and Below - Requirements
Edition 2000

Standards [CURRENT]

UNE 21239-1 IN

Short-circuit currents in three-phase a.c. systems - Part 1: Factors for the calculation of short-circuit currents according to IEC 60909-0.
Edition 2005-07-27

Standards [CURRENT]

UNE 21428-1

Three-phase liquid -immersed distribution transformers 50 Hz, from 25 kVA to 3150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. National complementary annex
Edition 2021-12-01

Standards [CURRENT]

IEEE C 57.12.34

IEEE Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Voltage and Below
Edition 2022

Standards [CURRENT]

UNE 21428-1-1

Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 1: Requirement for dual voltage transformers in high-voltage.
Edition 2021-12-01

Standards [CURRENT]

UNE 21428-1-2

Three-phase liquid-immersed distribution transformers 50 Hz, from 25 kVA to 3150 kVA with highest voltage for equipment not exceeding 36 kV. Part 1: General requirements. Section 2: Requirements for dual-voltage transformers in low-voltage.
Edition 2021-12-01

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