1. Hoists, rolling mills and other heavy industrial occasions Hoists and rolling mills are typical impact loads, which mainly exist in various mining production occasions and metallurgical industries, and have the following impacts on the power grid: ●The impact of reactive power is large, causing voltage fluctuations in the power grid, and in severe cases, it interferes with the operation of other equipment and reduces production efficiency; ●The power factor is low, and a large amount of reactive fines need to be paid every month; ●Some devices generate harmonics, which endanger the safety of the power grid. 2. Drilling Power Supply System The main loads of the oil and gas drilling and platform power supply system include drawworks, rotary table, mud pump, etc. Due to the particularity of drilling conditions, this system is a typical impact load. The impact on the grid is as follows: ●Large reactive power impact and low power factor; ●Large current harmonics; ●Serious voltage fluctuation and high voltage distortion rate affect the power supply of control system, PLC, mud logging equipment and other equipment.
product model
Design and production standards ●GB 191-2000 packaging, storage and transportation icons ●GB 4208-2008 enclosure protection level (IP code) ●GB/T 2900.1-2008 basic terms of electrical terms ●GB/T 2900.33-2004 Electrotechnical Terminology Power Electronic Technology ●GB/T 3859.1-1993 Basic Requirements for Semiconductor Rectifiers ●GB/T 4025-2003 Basic and safety rules for human-machine interface signs and markings Code rules for indicator lights and manipulators ●GB/T 13422-1992 Electrical Test Methods for Semiconductor Power Converters Capacity selection
