This Specification was formulated for the purpose of achieving advanced technology, economic rationality and safe operation and also guaranteeing quality in the prestressed construction of building engineering.

This Standard specifies the test methods for three-phase synchronous motor. This Standard is applicable to synchronous motors, generators and synchronous cameras with a rated power of 1 kW (kVA) and above. It is not applicable to synchronous motors without DC excitation winding. The test of synchronous motors powered by static variable frequency power supply can be used for reference.

Brookings Papers on Economic Activity (BPEA) provides academic and business economists, government officials, and members of the financial and business communities with timely research on current economic issues.