DESIRAJU GOPALA KRISHNA
Hyderabad,India
Summary
Competent Engineering professional offering foundation in engineering project management and design. History of success in performing load and cost calculations and establishing clear parameters. Detail-oriented with strong knowledge of handling vast Power Plant Projects.
Overview
32
32
years of professional experience
Work History
Superintending Engineer Electrical (E&M)
Pulichintala Hydro Electric Scheme
02.2013 - 05.2018
- Head to mechanical/electrical/civil wings
- No of units and generation: 4 x 30 MW = 120 MW
- Total material for four units supplied by M/S BHEL.
Superintending Engineer Elect (O&M)
Machkund Hydro Electric Scheme
12.2010 - 02.2013
- Head to power house/APGENCO
- In Machkund Hydro Electrical Scheme all the dams i.e
- Jalaput main dam, spill way, diversion dam, nonpressure tunnel, pressure tunnel are all under the control of SE power house
- No separate irrigation department is there to look after
- Generating units: Stage I: 3 x 17 MW = 51 MW ( 1955 commissioned) Stage II: 3 x 23 MW = 69 MW (1958 commissioned) Total = 120 MW
- SE is to look after all the works of mechanical, electrical, civil along with quarters, welfare, hospitals, engineers, O&M staff, pensioners of the three camps Jalaput, Machkund, and Onukudelli
- Procurement of materials , spares and consumables by placing orders as per the indents received from mechanical/electrical/civil wings
- Maintenance of three hospitals along with doctor and associated medical staff and procurement of medicine
- Job orders are to be issued to emergency works on limited tender in order to reduced machine downtime
- Total electrical distribution, three phase 11 KV/415 V distribution transformers along with 11 KV lines, three phase four wire LT lines in three camps are also covered under the control of generation head.
Assistant Divisional Engineer Elec (ADE)
Vijayawada Thermal Power Station (VTPS)
12.1996 - 08.2003
- Maintenance and troubleshooting of Motor Control Centers (MCCs) connected to various conveyer systems
- Maintenance and troubleshooting of mimic and annunciation panel connected to various conveyer systems for selection of path
- Maintenance and troubleshooting of Control and Relay panels and associated power circuits provided for various three phase 6.6 KV HT and three phase 415 V LT motors connected to conveyer systems and crusher motors associated with contactor sequential logic and PLC logic systems
- Testing and troubleshooting of CTs, PTs, Motor Protection Relays, Neutral Displacement Relay, Definite Time Over Current Relay, instantaneous earth fault relays, U/V and O/V relays connected to HT motors as well as LT motors
- Trouble shooting of mechanism problems of three phase 6.6 KV indoor type VCBs (BHEL, ABB, Seimens, NGF etc) for HT loads and three phase 415 indoor type ACBs for LT loads in all respects
- Maintenance of 6.6 KV/415 BUS A, BUS B, BUS coupler breakers along with associated load breakers, troubleshooting of control and power circuits
- Auto change over of loads from BUS A to BUS B and vice versa by closing BUS coupler breaker in auto mode under the event of fault in any side for both 6.6 KV and 415 V BUS systems in order to maintain uninterrupted supply to the conveyers in service
- Maintenance and troubleshooting of 6 nos wagon trippers and associated motors and their control circuits, power circuits, and protection relays
- Maintenance of 6 nos static weigh bridges for weighment of coal in each wagon
- Of which 4 nos Avery make and 2 nos Mettler and Tolledo along with 1 nos in motion weigh bridge of Avery make
- 3 nos stacker reclaimers of which 2 noss Elecon make and 1 nos Thysun Krupp and associated AC and DC drives for controlling of forward and reverse motion of the stacker reclaimer
- 9 nos belt weighers connected to the conveyer next to the coal bunker for knowing the weight of coal fed to the bunker
- Well-versed with conveyer tripping like pull chord, belt sways, zero speed, capacitance probe systems etc
- Raising of indents and procuring of various spares, consumables for emergency utilization and maintenance of sub stores in each subdivision
- Maintenance of 6.6 KV / 415 V 2MVA power transformers of various makes to supply the power to various motors
- Maintenance of 250 KVA, 100 KVA, 75 KVA, 50 KVA, 415/415 V unit ratio transformers for lighting as well as welding loads provided at MCCs, along the conveyers including underground conveyers from wagon tippler to bunker floor around 2 km length, railway marshalling yard lighting towers around 5 km area for receiving coal rakes for tippling
- Maintenance of window type, split type ACs and water coolers at various locations
- Maintenance and troubleshooting of various HT/LT, single core, and three phase power and control cables of various sizes
- Maintenance of three phase 6.6 KV flexible trailing cable for stacker reclaimer with reeling and unreeling property on cable reeling drum and three phase LT trailing cables for 6 nos tripper
- Side arm chargers, Bettle chargers for placing the coal wagon on the wagon tippler platform
- Maintenance of BOBR conveyers along with paddle feeders and associated logic circuits
- Belt weighers provided to boom conveyers of stacker reclaimer for knowing the weighment of stacked coal or reclaimed coal from the stock yard
- Total O&M staff administration control from JPA to foremen grade I is under the control of powers of DE.
Assistant Engineer Electrical
Andhra Pradesh State Electricity Board
10.1988 - 12.1996
- O&M trouble shooting works of various 220/132 KV, 132/33 KV & 33/11 KV substations located in both Krishna and Guntur Districts
- Exposed to CT & PT wiring circuits for distance protection, O/C and E/F protection, differential relay protection and busbar protection and metering circuits by using various accuracies of cores of CTs and PTs suitable to various types of protection
- Testing and commissioning of various makes of distance protection relays connected to 220 KV and 132 KV feeders i.e
- Main I and main II protection relays and 3O/C and 1E/F directional relays with IDMT characteristics
- 3O/C and IE/F relays connected to 33 and 11 KV feeders
- For energy audit purpose testing of panel energy meters (MWH) of 33 and 11 KV meters every month exclusively provided to various H.T consumers
- Testing and commissioning of various MVA rating power transformers at substations with all associated protective system connected to relay/control panels
- Testing and troubleshooting of various relays provided for power transformers like Differential relays, Over flux relay, 3O/C, 1E/F relays, Buchholz relay, winding temperature relay, Oil temperature relay, Oil surge relays, and Pressure relief valve etc
- Periodical testing of dissolved gas analysis of power transformer oil
- Every month recording of breakdown value of power transformer oil
- Testing and commissioning of high voltage, medium voltage, and low voltage rating circuit breakers
- Troubleshooting of mechanical/electrical closing and tripping of circuit breakers of all voltage levels of various manufacturers.
Trainee Assistant Engineer (Electrical)
Andhra Pradesh State Electricity Board
08.1986 - 10.1988
- Periodical operational maintenance of substation equipment like 132/33-11 KV 10/16 MVA Power Transformers, 132/33-11 KV outdoor switch gear, station transformer, Control/Relay panels, Annunciation panel, Trip/Non-trip alarms, 220V DC Battery Chargers along with Batteries
- Periodical relay testing and recording of various maintenance schedules and maintaining of maintenance registers and preservation of substation drawings.
Education
B.Tech - Electrical & Electronics
J.N.T.U. College of Engineering
Anantapur, A.P03.1984
M.Tech - Electrical Machines & Industrial Drives
Regional Engineering College
Warangal, A.P03.1987
Skills
- Technical reporting
- Technical Writing
- Quality Control
- Manufacturing Processes
- Renewable energy
- Cost Estimates
- Construction Review
- Inspections
- Adaptability and Flexibility
- Blueprints and Schematics
- Technical Drawings
- Analytical Thinking
Languages
Telugu
Native or Bilingual
English
Full Professional
Hindi
Limited Working
Timeline
Superintending Engineer Electrical (E&M)
Pulichintala Hydro Electric Scheme
02.2013 - 05.2018
Superintending Engineer Elect (O&M)
Machkund Hydro Electric Scheme
12.2010 - 02.2013
Assistant Divisional Engineer Elec (ADE)
Vijayawada Thermal Power Station (VTPS)
12.1996 - 08.2003
Assistant Engineer Electrical
Andhra Pradesh State Electricity Board
10.1988 - 12.1996
Trainee Assistant Engineer (Electrical)
Andhra Pradesh State Electricity Board
08.1986 - 10.1988
B.Tech - Electrical & Electronics
J.N.T.U. College of Engineering
M.Tech - Electrical Machines & Industrial Drives
Regional Engineering College
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