Spare Parts
A. Hydropower Spare Parts
1. Turbine Runner
- Type: Francis, Pelton, Kaplan
- Material: Stainless Steel, Alloy Steel
- Function: Converts water energy into mechanical energy
- Features: High efficiency, corrosion resistance, precision balanced
2. Guide Vanes
- Material: Stainless Steel, Bronze
- Function: Controls water flow to turbine runner
- Features: Smooth operation, high wear resistance
3. Stay Vanes
- Material: Carbon Steel, Stainless Steel
- Function: Structural support and flow guidance
- Features: High mechanical strength, long life
4. Turbine Shaft
- Material: Forged Alloy Steel
- Function: Transmits mechanical power from turbine to generator
- Features: High torsional strength, precision machined
5. Turbine Bearings
- Type: Guide Bearing, Thrust Bearing
- Material: Babbitt Metal, Bronze
- Features: Low friction, high load capacity
6. Nozzles (Pelton Turbine)
- Material: Stainless Steel
- Function: Directs high-pressure water jet
- Features: Wear resistant, accurate jet formation
7. Needle & Deflector Assembly
- Application: Pelton Turbine
- Function: Flow regulation and load control
- Features: Fast response, precision movement
8. Shaft Seals
- Type: Mechanical, Labyrinth Seal
- Material: Rubber, PTFE, Metal
- Features: Leak prevention, long service life
9. Wear Rings
- Material: Stainless Steel, Bronze
- Function: Reduces leakage losses
- Features: Replaceable, wear resistant
10. Coupling (Flexible/Rigid)
- Application: Turbine–Generator connection
- Material: Alloy Steel
- Features: Vibration reduction, alignment tolerance
11. Generator Rotor
- Material: Electrical Steel
- Function: Produces magnetic field
- Features: High efficiency, balanced construction
12. Generator Stator
- Material: Copper Windings, Silicon Steel
- Function: Power generation
- Features: Low losses, thermal stability
13. Excitation System Spares
- Includes: AVR, Rectifier, Exciter Parts
- Features: Stable voltage control
14. Cooling System Components
- Includes: Pumps, Heat Exchangers, Fans
- Function: Temperature control
- Features: Reliable heat dissipation
15. Governing System Spares
- Includes: Hydraulic valves, Actuators, Control Units
- Function: Speed and load control
- Features: Fast and accurate response
B. Electrical & Switchgear Spare Parts
16. Vacuum Circuit Breaker (VCB)
- Voltage Rating: Up to 33kV
- Standard: IEC 62271-100
17. VCB Interrupter
- Voltage Rating: 33kV
- Insulation: Vacuum
18. Air Circuit Breaker (ACB)
- Current Rating: 800A – 6300A
- Standard: IEC 60947-2
19. Current Transformer (CT)
- Type: Protection, Metering
- Standard: IEC 61869
20. Potential Transformer (PT/VT)
- Function: Voltage measurement and protection
- Standard: IEC
21. Protective Relays
- Type: Numerical, Digital
- Functions: Overcurrent (OC), Earth Fault (EF), Differential, Distance
22. Control Relays & Timers
- Application: Control circuits
- Features: High accuracy, durability
23. Bus Bars
- Material: Copper, Aluminum
- Application: Power distribution
- Features: High current capacity
24. Insulating Bushings
- Material: Porcelain, Epoxy
- Application: Transformer & switchgear
25. Power & Distribution Transformers
- Voltage: Up to 132kV
- Standard: IEC 60076
C. Transmission Line Spare Parts (33kV / 132kV)
26. Transmission Line Towers
- Type: Suspension, Tension
- Material: Galvanized Steel
27. Tower Accessories
- Includes: Bolts, Nuts, Washers, Brackets
- Standard: Hot Dip Galvanized
28. Insulator Strings
- Type: Disc, Polymer
- Voltage: 33kV / 132kV
29. Suspension Clamps
- Application: Conductor suspension
- Material: Aluminum Alloy
30. Tension (Dead-End) Clamps
- Function: Conductor anchoring
- Features: High mechanical strength
31. Conductors
- Type: ACSR, AAAC
- Application: Power transmission
32. Earth Wire / OPGW
- Function: Lightning protection & communication
33. Spacer & Spacer Dampers
- Function: Controls conductor vibration
34. Vibration Dampers
- Function: Prevents wind-induced vibration
35. Jumper Connectors
- Application: Electrical continuity
36. Line Hardware Fittings
- Includes: Shackles, Clevis, Yoke Plates
37. Earthing Materials
- Includes: Earth Rods, Clamps, GI Strips
38. Cable Sets (33kV & LT)
- Type: XLPE Insulated
- Standard: IEC 60502
D. Installation, Testing & Maintenance
39. Hydropower Equipment Installation
- Scope: Mechanical & Electrical
- Support: Commissioning
40. Transmission Line Construction
- Voltage: 33kV / 132kV
41. Testing & Commissioning Equipment
- Includes: Relay Test Kits, VCB Testers
42. Repair & Maintenance Spares
- Includes: Gaskets, O-rings, Lubricants
E. Electrical Panel System Spare Parts
43. HT Switchgear Panel
- Voltage Rating: Up to 33kV
- Application: Incoming/Outgoing feeder control
- Standard: IEC 62271
- Features: Metal-clad, interlocked, safe operation
44. LT Distribution Panel
- Voltage Rating: Up to 690V
- Current Rating: As per system design
- Standard: IEC 61439
- Features: Modular design, easy maintenance
45. Motor Control Center (MCC) Panel
- Application: Motor control and protection
- Starter Type: DOL, Star-Delta, Soft Starter, VFD
- Features: Centralized motor operation
46. Synchronizing Panel
- Application: Generator synchronization
- Components: Sync relays, meters, control switches
- Features: Accurate voltage, frequency & phase matching
47. Generator Control Panel
- Application: Generator monitoring and protection
- Functions: Start/Stop, alarms, trips
- Features: Reliable automation and safety
48. Automatic Voltage Regulator (AVR)
- Application: Generator voltage control
- Input Voltage: As per generator rating
- Features: Fast response, stable output
49. Protection Relay Panel
- Relays: OC, EF, Differential, Distance
- Communication: IEC 61850, Modbus
- Features: Accurate fault detection
50. PLC Control Panel
- Application: Hydropower automation
- PLC Type: Siemens, Schneider, ABB compatible
- Features: Programmable, expandable, reliable
51. SCADA Panel
- Application: Remote monitoring & control
- Components: HMI, RTU, communication modules
- Features: Real-time data visualization
52. Panel Meters (Analog/Digital)
- Types: Ammeter, Voltmeter, Frequency, Power Meter
- Accuracy Class: 0.5 / 1.0
- Features: Clear display, long life
53. Current Transformer (CT)
- Type: Ring, Bar, Wound
- Ratio: As per design
- Class: Protection, Metering
- Standard: IEC 61869
54. Potential Transformer (PT/VT)
- Function: Voltage measurement
- Insulation: Cast Resin, Oil
- Standard: IEC
55. Circuit Breakers (Panel Spares)
- Types: MCB, MCCB, ACB
- Breaking Capacity: As per system fault level
- Standard: IEC 60947
56. Contactors
- Application: Motor and load switching
- Rating: AC3, AC4 duty
- Features: High electrical life
57. Thermal Overload Relays
- Application: Motor protection
- Features: Adjustable current range
58. Control Relays
- Type: Electromagnetic, Solid State
- Application: Control logic
- Features: Fast switching
59. Timers
- Type: ON Delay, OFF Delay, Star-Delta
- Application: Sequence control
- Features: Accurate timing
60. Push Buttons & Selector Switches
- Type: Start, Stop, Emergency, Rotary
- Standard: IEC
- Features: Durable, panel-mounted
61. Indication Lamps
- Color: Red, Green, Yellow, Blue
- Voltage: 24V, 110V, 230V
- Features: High visibility
62. Terminal Blocks
- Type: Screw, Spring Clamp
- Material: Polyamide, Copper
- Features: Secure wiring
63. Bus Bars (Panel Internal)
- Material: Copper, Aluminum
- Insulation: Heat Shrink, Epoxy
- Features: High current capacity
64. Panel Wiring Accessories
- Includes: Lugs, Ferrules, Cable Ties, Sleeves
- Features: Neat and safe wiring
65. Control Cables
- Type: Multi-core copper
- Insulation: PVC, XLPE
- Standard: IEC
66. Power Cables (Panel Use)
- Voltage: LT, HT
- Standard: IEC 60502
- Features: High insulation strength
67. Panel Cooling Fans
- Application: Heat dissipation
- Voltage: AC, DC
- Features: Long life bearing
68. Panel Heaters
- Application: Moisture control
- Features: Prevents condensation
69. Earthing & Grounding Accessories
- Includes: Earth Bus, Copper Strip, Clamps
- Features: Electrical safety
70. Panel Enclosure
- Material: CRCA, GI Sheet
- Protection: IP42, IP54, IP65
- Finish: Powder Coated
71. Interlocking Mechanisms
- Application: HT/LT safety
- Type: Mechanical, Electrical
- Features: Prevents wrong operation
72. Panel Nameplates & Labels
- Material: Engraved Plastic, Aluminum
- Features: Clear identification
73. Spare Fuses & Fuse Holders
- Type: HRC, Cartridge
- Application: Control & power circuits
74. Surge Protection Devices (SPD)
- Application: Lightning & surge protection
- Class: Type 1, 2, 3
75. Panel Testing Accessories
- Includes: Test terminals, shorting links
- Features: Safe testing & maintenance
76. Panel Maintenance Spares
- Includes: Gaskets, Hinges, Locks, Fasteners
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Features: Long-term service support