GB 12668.902-2021
Speed-regulated electrical drive systems Part 9-2: Ecological design of electrical drive systems, motor starters, power electronic equipment and their drive applications Energy efficiency indicators for electrical drive systems and motor starters (English Version)

Standard No.: GB 12668.902-2021
Language: Chinese, Available in English version
Release Date: 2021
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 12668.902-2021

Scope: This part of GB/T12668 specifies the energy efficiency indicators of power electronic equipment complete transmission module (CDM), electrical transmission system (PDS), motor starter and all driven equipment. This section specifies the method for determining the losses of the complete drive module (CDM), electrical drive system C (PDS) and motor system. This section defines the IE/IES levels of motor systems and their limits, and provides corresponding test steps for grading the overall loss of the motor system. In addition, this section proposes a method to achieve the best energy efficiency solution for the transmission system. This method relies on the architecture of the motor transmission system, the speed/load relationship curve and the operating point of the driven equipment over time. The extended product method and the semi-sum analytic model are defined.

GB 12668.902-2021 history

2021 GB 12668.902-2021 Speed-regulated electrical drive systems Part 9-2: Ecological design of electrical drive systems, motor starters, power electronic equipment and their drive applications Energy efficiency indicators for electrical drive systems and motor starters