IEEE Approved Draft Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below
NORMA vydána dne 13.5.2025
Označení normy: IEEE PC57.12.38
Datum vydání normy: 13.5.2025
Přibližná hmotnost: 300 g (0.66 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy IEEE
Revision Standard - Active - Draft.
Certain electrical, dimensional, and mechanical characteristics are covered in this standard, and certain safety features of single-phase, 60-Hz, mineral-oil-immersed liquid-filled, self-cooled, pad-mounted, compartmental-type distribution transformers are taken into consideration. These transformers are rated 250 kVA and smaller, with high voltages of 34 500 GrdY/19 920 V and below, and with low voltages of 480/240 V and below. These transformers are generally used for step-down purposes from an underground primary cable supply. The connector, bushing, and terminal arrangements for radial or loop feed systems are covered in this standard. The electrical and mechanical requirements of any accessory devices that may be supplied with the transformer are not covered in this standard.
ISBN: 979-8-8557-1370-1, 979-8-8557-1370-1
Number of Pages: 52
Product Code: STDUD27423, STDAPE27423
Keywords: distribution transformers, IEEE C57.12.38TM, pad-mounted, padmounted, single phase, single-phase, transformer
Category: Transformers
Draft Number: PC57.12.38/D2.9, Oct 2024 - UNAPPROVED DRAFT, PC57.12.38/D2.9, Oct 2024 - APPROVED DRAFT