供电技术(第4版) 余健明【正版书籍】

Brand: 机械工业出版社    Sold By: EM China

供电技术(第4版) 余健明【正版书籍】

Brand: 机械工业出版社    Sold By: EM China
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供电技术(第4版) 余健明【正版书籍】

供电技术(第4版) 余健明【正版书籍】

$29.24

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编辑推荐
《供电技术(第4版)》是普通高等教育“十一五”规划教材,是在《供电技术(第3版)》的基础上修订编写的。本版根据电工技术的发展,产品的更新,新标准的建立和实施,阐明了供用电工程技术的基本原理和设计方法,对电能质量问题做了较前版更为系统的讨论,提出改善的方法和途径。在供电系统变电所的自动化方面也对其要点和要求做出初步的分析与符合实用的总结。全书共分七章,包括用户供电系统、短路电流计算、电气设备选择与校验、供电系统的继电保护、供电系统的防雷与接地、电能质量及供电系统的自动化等。 
作者简介
余健明,男,956年出生。982年陕西机械学院(现西安理工大学)毕业留校任教。现任自动化与信息工程学院党委书记、常务副院长、教授。长期从事电气工程领域的教学与科研工作。主持完成各类科研项目30余项 获省部级科学技术奖和教学成果奖4项,国家发明专利项,编写出版书籍4部。在国内外重要学术期刊发表论文50余篇 其中EL收录3篇。99年曾获机械电子工业部授予的科技青年称号。2003年获西安理工大学授予教学名师称号。主要从事供用电系统电能质量分析与及配电网自动化应用技术方面的研究。
目  录
前言
本书常用字符表
章 绪论
节 电力系统的基本概念
第二节 用户供电系统的特点和决定供电质量的主要指标
习题

第二章 用户供电系统
节 电力负荷与负荷计算
第二节 供电电压与电源的选择
第三节 用户变电所
第四节 变电所的电气主接线
第五节 变电所的二次接线
第六节 高低压配电网
商品详情

 基本详情信息

 书名:供电技术(第4版)

 ISBN:9787111059202

 定价:24.00

 作者:余健明

 出版社:机械工业出版社

 出版时间:2008-02

 其他信息

 纸张:胶版纸

 页数:234

 尺寸:16开

 版次:4

 正文语种:简体中文...

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

hd当当栏目.jpg

编辑推荐
《供电技术(第4版)》是普通高等教育“十一五”规划教材,是在《供电技术(第3版)》的基础上修订编写的。本版根据电工技术的发展,产品的更新,新标准的建立和实施,阐明了供用电工程技术的基本原理和设计方法,对电能质量问题做了较前版更为系统的讨论,提出改善的方法和途径。在供电系统变电所的自动化方面也对其要点和要求做出初步的分析与符合实用的总结。全书共分七章,包括用户供电系统、短路电流计算、电气设备选择与校验、供电系统的继电保护、供电系统的防雷与接地、电能质量及供电系统的自动化等。 
作者简介
余健明,男,956年出生。982年陕西机械学院(现西安理工大学)毕业留校任教。现任自动化与信息工程学院党委书记、常务副院长、教授。长期从事电气工程领域的教学与科研工作。主持完成各类科研项目30余项 获省部级科学技术奖和教学成果奖4项,国家发明专利项,编写出版书籍4部。在国内外重要学术期刊发表论文50余篇 其中EL收录3篇。99年曾获机械电子工业部授予的科技青年称号。2003年获西安理工大学授予教学名师称号。主要从事供用电系统电能质量分析与及配电网自动化应用技术方面的研究。
目  录
前言
本书常用字符表
章 绪论
节 电力系统的基本概念
第二节 用户供电系统的特点和决定供电质量的主要指标
习题

第二章 用户供电系统
节 电力负荷与负荷计算
第二节 供电电压与电源的选择
第三节 用户变电所
第四节 变电所的电气主接线
第五节 变电所的二次接线
第六节 高低压配电网
商品详情

 基本详情信息

 书名:供电技术(第4版)

 ISBN:9787111059202

 定价:24.00

 作者:余健明

 出版社:机械工业出版社

 出版时间:2008-02

 其他信息

 纸张:胶版纸

 页数:234

 尺寸:16开

 版次:4

 正文语种:简体中文...

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

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