Overview
The motor soft starter starts the reactor, which passes through AC current and is connected in series with the electric machine to limit the current during motor starting. It has a short-term starting effect and is no longer used after starting. When starting an AC asynchronous motor at rated voltage, the initial starting current will be very large, often exceeding many times the rated current. In order to reduce the starting current and minimize the impact on the power grid, voltage reduction is usually used to start the AC asynchronous motor. The commonly used voltage reduction method is to use a reactor. The starting process of the AC motor is very short, usually a few seconds to about a minute, After starting, cut off the reactor used for voltage reduction and start-up.
Technical standard
Motor soft starter The design, manufacturing, inspection, and testing of the main and auxiliary equipment of the high-voltage solid-state soft start device all adopt the latest version of the national standard GB, while meeting the corresponding IEC standards. The main standard numbers are as follows:
GB/T2423.4-1993 Basic Environmental Testing Procedures for Electrical and Electronic Products Test Db: Alternating Damp Heat Test Method. (eqv IEC 60068-2-30:1980)
GB/T2828-1987 Sampling procedures and tables for batch by batch inspection by attributes (applicable to continuous batch inspection)
GB 2900.19 Electrotechnical Terminology - High voltage Test Techniques and Insulation Coordination
GB/T 2900.20-94 Electrotechnical Terminology - High Voltage Switchgear
DL/T 593-2006 Common technical requirements for high-voltage switchgear and control equipment standards
GB 311.1-1997 Insulation Coordination of High Voltage Transmission and Transformation Equipment
GB/T 3797-2005 Electrical Control Equipment
GB/T 14048.1-2000 General Principles for Low Voltage Switchgear and Control Equipment
GB/T 2682-1981 Color of indicator lights and control knobs in complete electrical equipment
JB/DQ 8124 Basic Technical Requirements for Cable Equipment
DL/T 404-1997 Technical Conditions for Ordering Indoor AC High Voltage Switchgear
GB1208-97 Design Specification for Relay Protection and Automatic Devices of Power Equipment
GB/T4207-1984 Solid insulation materials - Determination of relative leakage trace index under humid conditions
GB/T5169.11-1997 Fire hazard testing for electrical and electronic products - Glowing wire test method and guidelines for finished products
GB 4208-1993 Degrees of Protection Provided by Enclosures
GB/T13384-1992 Basic environmental conditions and test conditions for transportation and storage of electromechanical products
JB3284-1983 Basic Environment and Test Conditions for Transportation and Storage of Electric Motors and Electrical Products
GB/T191 Packaging, Storage and Transportation Pictorial Symbols
GB9969.1 General Principles of Industrial Product User Manual
GB/T14048.4-1993 Low voltage switchgear control equipment - Low voltage electromechanical contactors and motor starters
GB14048.6-1998 Low voltage switchgear and control equipment - Contactors and motor starters
JB5346-1998 Standard for Series Reactors
GB10229-88 Reactor
All regulations, specifications, and standards mentioned above shall be based on the latest version implemented by the country or internationally.
Usage environment
Altitude: ≤ 1500 meters
Maximum monthly average relative humidity: 95%
Maximum ambient temperature:+45 ° C
Minimum ambient temperature: -25 ° C
Average maximum temperature in the hottest month for 24 hours:+30 ° C
The installation location should have no explosive hazardous media, and the surrounding media should not contain gases or conductive media that damage insulation performance. It is not allowed to be filled with water vapor or have serious mold. The use location should not have a strong external magnetic induction intensity.
Scope of supply
The main technology and various services of a complete set of high-voltage reactor one-to-one starting cabinet. Mainly including: starting reactor, isolation switch, current transformer, voltage transformer, high-voltage vacuum bypass contactor, fuse, digital instrument with 4-20mA current transmission interface, motor specific microcomputer comprehensive protection device, button, signal light, conversion switch, temperature display instrument, cabinet, copper busbar sleeve high-voltage heat shrink tube, etc.
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