Panel Maintenance

 1. Procurement Panel MDP, ATS, Capacitor, Sync Ron, Cubicle LVMDP & MVMDP, procurement GCB,

    VCB, ACB, MCCB, etc.

2. Substation test / Commissioning until 150 KV, as below:

- Investigation protection, control, operating and interlock system

 - Testing CT and PT

 * Ratio

 * Burden Test

 * Knee point (saturation)

 * Polarity check

 * Tangent Delta

 - Testing protection relay

 * Over Current Relay

 * Ground Fault

 * Distance

 * Differential

 * Synchronizing

 * Auto recloses

 - Analyses condition Circuit Breaker

 3. Testing Circuit Breaker, as below:

 - Test synchronization Circuit Breaker (time measurement) / Breaker Analyzer

 - Routine maintenance and test CB complete with SF-6 & check pressure (specifically for 150 kV)

 4. Cubicle / Switchgear MV & LV                              

 - Procurement, installation, service

 - Maintenance and repair ACB, MCCB, VCB

 - Modification and rewiring

 - Replacement spare part

 - Troubleshooting and solution

 - Cleaning Bus duct / Bus bar

 - Lightning arrester, grounding and spare part