IEEE Std C57.12.38-2025 额定容量250 kVA及以下自冷式、单相柱上型配电变压器标准：高压侧电压34 500 GrdY19 920 V及以下低压侧电压480240 V及以下

VIP专享

标准之家 2026-08-27 12 1.67MB 39 页 28星币

侵权投诉

STANDARDS

IEEE Power and Energy Society

Developed by the

Transformers Commiee

IEEE Std C57.12.38™-2025

(Revision of IEEE Std C57.12.38-2014)

IEEE Standard for Pad-Mounted-

Type, Self-Cooled, Single-Phase

Distribuon Transformers 250 kVA

and Smaller: High Voltage,

34 500 GrdY/19 920 V and Below;

Low Voltage, 480/240 V and Below

IEEE Std C57.12.38™-2025

(Revision of IEEE Std C57.12.38-2014)

IEEE 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

Developed by the

Transformers Committee

of the

IEEE Power and Energy Society

Approved 12 February 2025

IEEE SA Standards Board

Abstract: Certain electrical, dimensional, and mechanical characteristics are covered in this

standard, and certain safety features of single-phase, 60-Hz, 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.

Keywords: distribution transformers, IEEE C57.12.38™, pad-mounted, padmounted, single

phase, single-phase, transformer

The Institute of Electrical and Electronics Engineers, Inc.

3 Park Avenue, New York, NY 10016-5997, USA

Published 16 July 2025. Printed in the United States of America.

IEEE is a registered trademark in the U.S. Patent & Trademark Oﬃ ce, owned by The Institute of Electrical and Electronics Engineers,

Incorporated.

PDF: ISBN 979-8-8557-2234-5 STD27965

Print: ISBN 979-8-8557-2235-2 STDPD27965

IEEE prohibits discrimination, harassment, and bullying.

For more information, visit https:// www .ieee .org/ about/ corporate/ governance/ p9 -26.

No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission

of the publisher.

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

亲，本站95%以上的标准规范都面向会员免费，办理VIP会员下载更省钱，平均每篇不到2元

立即下载

标签： #高压

摘要：

IEEE Std C57.12.38-2025 是电气与电子工程师协会发布的最新版配电变压器标准，专门针对额定容量在250 kVA及以下、自冷式、单相柱上型配电变压器的设计、制造与测试要求。该标准覆盖高压侧电压不超过34 500 GrdY19 920 V（即三相系统采用接地Y形连接，相电压19 920 V）以及低压侧电压不超过480/240 V的应用场景。本标准旨在统一柱上型变压器的电气性能、机械结构、绝缘水平、温升限值、损耗及阻抗参数，确保设备在户外安装条件下的安全可靠运行。它适用于配电系统末

展开>> 收起<<

IEEE Std C57.12.38-2025 额定容量250 kVA及以下自冷式、单相柱上型配电变压器标准：高压侧电压34 500 GrdY19 920 V及以下低压侧电压480240 V及以下.pdf

共39页,预览3页

还剩页未读，继续阅读

声明：本文档系会员上传，若文档所含内容侵犯了您的版权或隐私，请立即通知，我们立即给予侵权申诉删除！

IEEE Std C57.12.38-2025 额定容量250 kVA及以下自冷式、单相柱上型配电变压器标准：高压侧电压34 500 GrdY19 920 V及以下低压侧电压480240 V及以下

相关推荐

开通VIP享超值会员特权

相关内容

热门标签

举报选择:

IEEE Std C57.12.38-2025 额定容量250 kVA及以下 自冷式、单相柱上型配电变压器标准：高压侧电压34 500 GrdY19 920 V及以下 低压侧电压480240 V及以下

相关推荐

开通VIP享超值会员特权

相关内容

热门标签

举报选择:

IEEE Std C57.12.38-2025 额定容量250 kVA及以下自冷式、单相柱上型配电变压器标准：高压侧电压34 500 GrdY19 920 V及以下低压侧电压480240 V及以下