Customer questions:

The customer's equipment is mainly frequency conversion motor. There are a lot of harmonics in the 0.4kV bus, which leads to the reactor burning in the reactive power compensation cabinet and the bus heating seriously.

Test results:

(1) The harmonic content on site has exceeded the national standard;

(2) The main harmonics are 5, 7, 11 and 13;

(3) The power factor is up to the standard.

Customer value:

(1) According to the harmonic content data in the test results, a detailed harmonic control scheme can be formulated;

(2) Provide the power quality management effect evaluation after the management, and provide the basis for the completion acceptance of the power quality management project for customers.