GB/T 15543-2008 Active National standards

GB/T 15543-2008 Power quality—Three-phase voltage unbalance

Publish Date: 2008-06-18 Implement Date: 2009-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 15543-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Comprehensive Electrical Engineering

Publish Date: 2008-06-18

Implement Date: 2009-05-01

Pages: 8 pages

Scope

This standard specifies the limits, calculation, measurement, and valuation methods for three-phase voltage imbalance. This standard applies to voltage imbalance at the common connection point caused by negative sequence fundamental components in AC power systems operating at a nominal frequency of 50 Hz, as well as voltage imbalance at the common connection point caused by zero sequence fundamental components in low-voltage systems. The allowable voltage imbalance and allowable values for negative sequence current in the rated operating conditions of electrical equipment are still specified by their respective standards, such as the requirements for rotating motors specified in GB 755. This standard does not apply to instantaneous and temporary imbalance issues.