Electric Equipment Test

Technical calculation in electric power systems and modifying protective relays
These perform technical calculations to implement designs in consideration of reliability, economical efficiency, and stability in electric power systems. Therefore, they analyze and check the following items:

Technical calculation in electric power systems [software : ETAP 6.0]

• Short Circuit Analysis
  
• Load Flow Analysis
  
• Motor Starting Analysis
  
• Transient Stability Analysis
  
• Over-current Protection Device Coordination Analysis

Setting Calculation

- Digital, Static & E.M Type Protective Relay
(transmission lines, transformers, buses, distribution lines, electric motors, incoming panels, generators, etc.)

This precisely tests and diagnoses customer’s equipments for their stability using the automatic modular computerized test for relaying system that is the more advanced method than the traditional manual test.

Type and date of the test

• Commissioning Test
  - Test for protective systems of facilities under construction.
  
• Maintenance or Periodic Test
  - Diagnostic test for stable operation of electric power equipments
  
• Temporary test
  - Calibration test of protective relays or test to find causes of malfunctions and failures

Electric equipment test

1. C.T & P.T Test

A. Divisions: completion test, regular test, and temporary test

B. Test Item
1) Polarity Check
2) Ratio Test
3) Burden Test
4) Excitation Test
5) Winding Resistance Test
6) Insulation Test

2. Circuit Breaker Test

A. Divistions : completion test

B. Test Item
1) Measurement of the resistance of the main circuit
2) C.B Timing Test
3) Spring charging time and motor current check
4) Functional trip test

3. Earthing Resistance Measurement

A. Divisions : completion test

B. Test Item
Measurement of the resistance of the Earthing system

4. Transducer Test

A. Divisions : completion test, regular test and temporary test

B. Test Item
1) Measurement test of control power
2) Zero Adjust test
3) Span Adjust
4) Error test by output

5. Power Transformer Test

A. Insulation resistance measurement

B. No-load characteristic test
1) No-load current
2) No -load loss

C. Test of three phase short-circuit
1) Impedance Volt
2) % Impedance
3) Copper loss
4) Voltage regulation
5) Efficiency - efficiency by summation of loses, total loss

D. Phase rotation and loop test
1) Phase rotation
2) Phase difference
3) Voltage difference

E. Voltage ratio measurement

F. polarity test or angular displacement test

G. Charging test

Related Keywords;

• Electric Equipment
• Electric Equipment Test
• Electric power
• Polarity Check
• Power system analysis
• earthing resistance measurement
• protective relay
• power transformer test
• excitation test
• insulation test
• ratio test
• burden test
• winding resistance test
• measure electric power
• measure eletric equipmemt