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air compressor system measurement method base energy energy savings electric motor system introduction application pump system ventilator system pump energy saving measurement consumption-influencing factor model method direct comparison method base energy type bnc self-supporting chimney chimney bonder
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  2. GB/T 30256-2023 in English
GB/T 30256-2023 in English

GB/T 30256-2023 in English

VALID

Technical requirements of measurement and verification of energy savings—Electric motor system

  • Issued on:2023-05-23
  • Implemented on:2023-12-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD)： $270.00
$262.00
Standard No: GB/T 30256-2023
Document status: VALID
Title in English: Technical requirements of measurement and verification of energy savings—Electric motor system
Title in Chinese: 节能量测量和验证技术要求 电机系统
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2023-05-23
Implemented on: 2023-12-01
Superseding: GB/T 30256-2013 Technical Requirements of Measurement and Verification of Energy Savings, Pumped Liquid Delivery System
GB/T 30257-2013 Technical Requirements of Measurement and Verification of Energy Savings, Fan System
ICS Classification: 27.010-Energy and heat transfer engineering in general
Chinese Classification: F01-Technical management
Professional Classification: GB-National Standard
Related Keywords: air compressor system measurement method base energy
energy savings electric motor system introduction
application pump system ventilator system pump
energy saving measurement
consumption-influencing factor model method direct comparison method base energy
Related Topics: gb/t30256
measurement and
GB/T 30256-2013
Automatic Measurement Verification System
time energy measurement
verification technology
GBT30256
GB/T 30256-2013

《GB/T 30256-2023节能量测量和验证技术要求 电机系统》由TC20（全国能源基础与管理标准化技术委员会）归口，TC20SC3（全国能源基础与管理标准化技术委员会能源管理与节能评估分会）执行，主管部门为国家标准委。


Introduction

1. Standard Overview

GB/T 30256-2023 "Technical Requirements for Energy Saving Measurement and Verification - Motor Systems" replaces GB/T 30256-2013 and GB/T 30257-2013, expands the scope of application and adds new technical requirements. This standard is mainly applicable to energy-saving transformation projects of AC electric driven fan systems, pump liquid delivery systems and general air compressor systems.

2. Background of Standard Formulation

With the country's emphasis on energy conservation and environmental protection, the energy-saving transformation of motor systems, as high-energy-consuming equipment, has become an important part of achieving the goal of carbon neutrality. The formulation of this standard aims to standardize the energy-saving measurement and verification methods to ensure the accuracy and comparability of energy-saving effects.

3. Comparison of standard frameworks

Dimensions GB/T 30256—2013 GB/T 30257—2013 GB/T 30256—2023
Scope of application Pump system Ventilator system Pump, ventilator and air compressor system
Measurement method Base energy consumption-influencing factor model method Direct comparison method Base energy consumption-influencing factor model method and direct comparison method
New content - - Sampling calculation, uncertainty analysis, CO2 emission reduction calculation

4. Measurement and verification methods

The standard specifies two main measurement methods:

  • Base period energy consumption-influencing factor model method: A regression model is established based on historical data, which is suitable for projects with complete data.
  • Direct comparison method: By turning off and on energy-saving measures, the energy consumption changes are compared, which is suitable for projects where complete historical data cannot be obtained.

5. Implementation Suggestions

Case Study: Air Compressor System Transformation of a Certain Enterprise

By adopting stepless air volume regulation technology, a certain enterprise achieved an annual electricity saving of 147,5507 kW·h. During the implementation process:

  • Clearly define the project boundaries, including the control system, drive system, and piping system.
  • Choose an appropriate measurement method (base period energy consumption-influencing factor model method) and establish a regression model.
  • Perform uncertainty analysis to ensure the accuracy of the measurement results.

More samples: DL/T 5154-2012 GB 50021-2001(2009) QC/T 942-2021
Sample only — not a preview of GB/T 30256-2023
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