Medium Voltage Switchgears are unique primary devices that stabilize power flow. It protects linked devices by controlling, metering, and regulating power in the distribution management system.
The ability of an electrical current to be interrupted is assessed by measuring its travel & velocity curves.
Step-1: Functional Test
Step-2: Contact Timing Test
Step-3: Vibration Test
Step-4: Contact Resistance Test
Step-5: Tightness Test
Step-6: Dynamic Contact Resistance Test
Step-7: AC Insulation Test
Step-8: Auxiliary Circuits Insulation Test
Step-9: X-Ray Test
The circuit breaker should be tested to confirm that it is operating properly by performing a test trip.
In contact timing testing, it evaluates how long it takes from the time an order is placed to the time the contacts are closed or divided.
The circuit breaker’s distinctive vibration signature is measured with the help of vibration testing.
A measurement of the contact resistance that conducts electricity is performed during the contact resistance testing process.
Within the setting of tightness testing, the connections across breakers are personally inspected to ensure that they are safe.
During dynamic contact resistance testing, the resistance that exists between the contacts is measured in a cycle that is constantly repeated.
During AC Insulation testing, the separation distance across open contacts, the line, and ground is measured.
Testing the insulation of auxiliary circuits involves determining whether or not low-voltage control circuits are isolated from one another.
When evaluating the safety of the internal components of sealed assemblies, X-ray testing is utilized.
All test findings should be reviewed and signed off on by the Site Electrical Engineer, Quality Control Engineer, and Consultant.