FAQ

Contacts application in electric locomotive is very extensive

From:  Date:2018/3/5 16:53:21  Click:

Contacts application in electric locomotive is very extensive, it uses the primary contacts to open and close the circuit, with auxiliary contacts to execute the control instructions. Main contacts generally only normally open contact, and often two pairs of auxiliary contacts with normally open and normally closed contacts functions, AC contactor contacts made from silver tungsten alloy with good conductivity and high temperature ablative. 6C series contactor structure of modular design and wide range of accessories, easy maintenance and replacement. 6C180 AC contactor with high operating frequency, the main contact pressure, and good resistance to welding, arc resistance, etc., used more often. In many electric locomotive, originally used 3TB series, 6C110 6C180 type have to switch type.  

6C180 the interrupter contacts and the contacts between the supporting parts with mechanical interlocking device, when the interrupter cover removed, the interlock device will contact support pieces sold to live, this time even if one operation, contact the system will not move, able to reliably ensure the safety of maintenance personnel. In the control side of the coil wire has a red indicator, indicating the close or disconnect the contactor. Shaoshan 4,7,8-made series of electric locomotives used by the auxiliary start with the work of the majority of three-phase AC contactor 6C products (6C180, 6C110, etc.), the contactor is small, compact structure, good safety performance, and reliable access to the main contact.However, the practical application of 6c series contactor process repeatedly fails, for the 6C110, 6C180-type magnetic contactor in the practical application failures, analyzing the failure, and proposes preventive measures, and achieved good results.



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Add.:No.2 plant, No.23 SANXIN R.D, TianYuan District, Zhuzhou Hunan P.R China
Tel:+86-18073352310
E-mail:sales@zttungsten.com