Technical parameters of SMN-2 type contact pressure tester

SMN-2 Contact Pressure TesterIt is a low-voltage switchgear drawer moving contact clamping force detection instrument developed by our company

At present, drawer type switchgear is commonly used in 380VAC power supply systems. Due to the deformation of the moving contacts when the drawer is pulled out or inserted, the clamping spring is damaged, the clamping force of the moving contacts is reduced, and the contact between the moving and stationary contacts is poor or the contact area is reduced, causing an increase in resistance and heating at the contact points, further developing into two-phase or three-phase short circuits, causing the switchgear to burn, resulting in property losses, power supply interruption, and device shutdown. The SMN series detector provides a convenient and accurate method for detecting the clamping force of contacts, which can significantly reduce the short circuit faults caused by factors such as contact deformation in low-voltage switchgear. This product is widely used in the operation sites of petroleum, nuclear power, power and other departments. It is a reliable detection and diagnostic tool for the clamping force of low-voltage switchgear contacts in enterprise maintenance. It can conveniently and quickly monitor the parameters of the clamping force of the contacts, help analyze the causes of connector heating or burning, ensure long-term stable and reliable switch performance, and avoid accidents.
The SMN series low-voltage switchgear contact clamping force detector consists of two parts: a digital display instrument and a handle clamping force sensor. The standard product has a measurement range of 0-200N. It has two measurement methods: automatic and manual, as well as upper and lower limit alarm functions for clamping force. Various forms of handle sensors and guide heads can be configured for low-voltage cabinets from different manufacturers such as ABB, Siemens, and Tianshui Changcheng.

parameter table