EEA: Electrical Energetics Grid Impedances, Short Circuit Currents and Automatic Trip-Out Ability (ADK: D-5/909) – Presentation PDF on 40 + pages The acquired knowledge on assuring of safety conditions and protection against electrical shock by evaluating of automatic tripout ability and tripout time. Grid Z impedances, Ipsc and Ipfc with HOT factors used in calculations to protect transformers and built-in equipment in case of overheating. Several procedures and measuring methods are explained for maintenance in safe manner when work energized.
EEA – Presentation PDF: Electrical Energetics Grid Impedances, Short Circuit Currents and Automatic Trip-Out Ability
15,75 €
Description
Practical Knowledge with Measuring Methods and Procedures
Inspections, Tests & Measurements
- Visual inspection
- Automatic tripout ability
- Continuity and equalization testing
- dR High-Current earth bonding testing
- Ground integrity with High-Current method
- Partial grounding by additional flex clamp method
- Partial impedances of joints on live lines
- Short-circuit current avilable
- Short-circuit current minimum and hot factor evaluated
- Short-circuit current maximum
- Fault / contact / touch voltage evaluated
- Z / Isc / Fuse protection evaluation
- ELR relay tripout testing
- Insulation resistance measurement
- Functional checking
- Power quality evaluation
Evaluation of Results
- Find the PASS / FAIL / LIMIT values
- Compare results to the limit
- Bring the decision
Act and Inform Appropriately
- Report the results
- Mark the equipment accordingly
- Enabling of further use when PASS
- Rejecting the usage when FAIL
- Inform and transfer the responsibility
Troubleshooting and Maintenance
- Evaluate results, predict maintenance
- Find faults and potential dangerous
