DINAKARAN ANANTHAN

Experienced Electrical Testing and Commissioning Engineer with hands-on experience in handling switch yards up to 400/220/110/66/11KV as well as extensive knowledge of electrical equipments like power transformers, CTs, PTs, CVTs, breakers, relay protection, and various testing kits such as CPC 100, CT Analyser, Megger, FRAX, CB Analyser and IDAX.

Work:

• Check all equipment in the substation:
• 110KV breaker
• 110KV transformer
• 33KV breaker
• 33KV transformer
• Busbar
• CT, VT
• Perform testing:
• Visual inspection
• Insulation resistance
• Primary injection testing
• Secondary injection testing
• Tan delta testing
• Circuit Breaker Timings
• Contact resistance testing
• Current measurement
• Voltage measurement

Output:

TESTING OF 110KV/33KV SUBSTATION TESTING

• Testing of 110KV/33KV Substation
• Impact:
• Ensures proper maintenance of the substation
• Provides an understanding of any parameters that are not within specified limits
• Increases the reliability of the electrical system

1. Visual Inspection - inspect oil levels, tank for deformations, insulation condition and external parts for wear & tear

2. Measurement of core-to-windings & windings-to-ground insulation resistance

3. Measurement of no-load & on-load currents, load losses & impedance voltage

4. Measurement of ratio & phase displacement

5. Measurement of Tan delta Testing for Bushings and HV & LV Windings

6. Applied voltage test for core, windings & tank

7. Measurement of harmonic & short circuit impedance

8. Dielectric and ac stressing tests

9. Temperature rise test

10. Measurement of DC winding resistance

Output:

Visual Inspection, Measurement of core-to-windings & windings-to-ground insulation resistance, Measurement of no-load & on-load currents, load losses & impedance voltage, Measurement of ratio & phase displacement, Measurement of Tan delta Testing for Bushings and HV & LV Windings Applied voltage test for core, windings & tank, Measurement of harmonic & short circuit impedance, Dielectric and ac stressing tests, Temperature rise test, Measurement of DC winding resistance.

Impact

• Increased plant uptime
• Mitigation of design risk
• Improved system security
• Reduction in operation and maintenance expenses
• Improved overall efficiency

1. Testing of Micom P346 Generator Protection Relays

2. Testing of Woodward Easygen 3000 Generator Controller Relays

3. Testing of Schneider P3130 Feeder Protection Relays

WORK LIST:

• Verify the settings internally against the settings provided by client.
• Examine external connections for proper connection.
• Carry out testing on CT’s, VT’s.
• Verify accuracy of the trip values
• Observe the response of the relays at various stages
• Test the protection relay for proper operation under fault conditions
• Ensure that proper status is indicating in LED display.
• Ensure that all wiring and connections are properly made.
• Measure the accuracy of the instrument within manufacturers tolerances
• Validate the results obtained against the test data sheet.

Impact

• Improved reliability of Micom P346 Generator Protection Relays
• Enhanced accuracy of Woodward Easygen 3000 Generator Controller Relays
• Optimized performance of Schneider P3130 Feeder Protection Relays

1. Testing of Siemens 7SR2102 Backup Protection Relays

2. Testing of ABB Ret650 Transformer Protection Relays

3. Testing of ABB RED670 Line Differential Relays

4. Testing of MICOM P545 Line Differential Relays

WORK LIST:

• Verify the settings internally against the settings provided by client.
• Examine external connections for proper connection.
• Carry out testing on CT’s, VT’s.
• Verify accuracy of the trip values
• Observe the response of the relays at various stages
• Test the protection relay for proper operation under fault conditions
• Ensure that proper status is indicating in LED display.
• Ensure that all wiring and connections are properly made.
• Measure the accuracy of the instrument within manufacturers tolerances
• Validate the results obtained against the test data sheet.

Impact:

• Improved reliability of Micom P346 Generator Protection Relays
• Enhanced accuracy of Woodward Easygen 3000 Generator Controller Relays
• Optimized performance of Schneider P3130 Feeder Protection Relays