Pagdiagnos ug Pag-ayo sa mga Problema sa 10kV High-Voltage Switchgear

I. Mga Karaniwang Uri ng Kasalanan ug mga Paraan sa Pagsusi

Elektrikal nga Kasalanan

• Ang Circuit Breaker wala mogana o malfunction: Susihon ang mekanismo sa pag-store sa energia, closing/tripping coils, auxiliary switches, ug secondary circuits.

• High-Voltage Fuse Blown: Sukuran ang voltage sa terminals sa fuse; susihon ang busbar joints, cable terminations, ug protection relay settings.

• Busbar Discharge o Insulator Damage: Palihogon ang discharge sounds, susihon ang temperatura sa busbar connections, ug visual inspection sa insulators alang sa flashover traces.

Mekanikal nga Kasalanan

• Disconnector Stuck o Jammed: Susihon ang lubrication sa mekanikal nga linkages, operating spring condition, ug auxiliary switches.

• Operating Mechanism Spring Failure: Susihon ang spring fatigue o aging; testi-on ang energy storage mechanism.

Insulation nga Kasalanan

• Insulator Damage o Busbar Discharge: Visual inspection sa insulator surfaces alang sa flashover marks; gamiton ang infrared thermal imager aron suhiron ang temperatura sa busbar joints.

Control Circuit nga Kasalanan

• Relay Protection Maloperation: Verify ang protection relay settings, susihon ang CT secondary circuits, ug checki-on ang stability sa control power supply.

II. Mga Paraan sa Pag-handle sa Kasalanan

Pag-handle sa Elektrikal nga Kasalanan

• Circuit Breaker Failure to Operate o Maloperation: Manually store energy ug testi-on ang closing operation; replace damaged coils; repair o replace faulty auxiliary switches.

• High-Voltage Fuse Blown: Tighten busbar joints, adjust protection settings, ug replace the fuse.

• Busbar Discharge o Insulator Damage: Tighten busbar connection bolts, clean dust from insulator surfaces, ug install dehumidification devices.

Pag-handle sa Mekanikal nga Kasalanan

• Disconnector Stuck o Jammed: Lubricate linkage mechanisms, replace springs, ug manually reset auxiliary switches.

• Operating Mechanism Spring Failure: Replace the spring, apply lubricant, ug manually test the energy storage function.

Pag-handle sa Insulation nga Kasalanan

• Insulator Damage o Busbar Discharge: Replace damaged insulators; perform power-frequency withstand voltage tests on the busbar.

Pag-handle sa Control Circuit nga Kasalanan

• Relay Protection Maloperation: Recalibrate protection settings, repair CT secondary circuits, ug stabilize the control power supply.

III. Mga Preventive Maintenance Measures

• Perform regular infrared thermography aron detect-an ang overheating issues.

• Conduct partial discharge (PD) testing aron identify-an ang early signs sa insulation aging.

• Maintain mechanical components by lubricating moving parts aron prevent-an ang jamming.

• Inspect cable terminations regularly aron prevent-an ang loosening o oxidation, reducing arc discharge risks.

• Clean dust and moisture periodically aron improve ang insulation performance.

Note: Ang mga paraan kini dapat gamiton nang flexible depende sa actual site conditions. Always ensure safety during troubleshooting. When necessary, contact qualified professionals for assistance.