- Capacity: 1.0MW~15MW.
- Frequency: 50Hz / 60Hz
- Transport Package: Seaworthy Packing
- Origin: China
- Outgoing Voltage: 6.3KV, 11KV
- Trademark: SOMEC
- Specification: GB / ASME / EN / BS
Mini hydro power plant means the one with unit capacity of 1.0MW~15MW. It has many advantages such as mature technology, little impacts on the environments andavailability for mountainous country with rich water resources. As an important supplement to thermal power generation, mini hydro power plant has both good economic benefits and significant social effects.
The mini hydro power plant mainly includes water turbine, generator, speed governor and excitation system. It often uses francis type water turbines which has a compact structure and high efficiency. The generator, speed governor and excitation system can be selected as per actual requirements. Our equipment in mini hydro power plant meets IEC standard and has been installed according to instructions, to ensure reliable operation.
According to our experiences in hydro power projects, we will take a proposal of 3*2.5MW hydro power plant as an example to show a complete configuration of mini hydro power plant.
Design Net Head : H=90.6m
Design Discharge : Q=3×2.72m3/s
Installed Capacity : 3×2100KW
Generator Outgoing Voltage : 6.3KV
Grid Voltage : 20KV
Scope of Supply
|1.1||Francis type water turbine||Horizontal Francis type, speed 750rpm, runner material 0Cr13Ni4Mo. Including:|
Water guide mechanism, speed governing mechanism, runner, expansion joint, bent draft tube, conical draft tube, anchor bolt, fixtures, etc.
Runner, impeller and impeller blade are machined by CNC(higher efficiency and easy future maintenance).
Power: 2100KW; 750rpm; silicon controller excitation, 6.3KV, 50Hz; F/F insulation, power factor 0.8, horizontal type, includes rotor, stator, bearing assembly, base, main shaft, anchor bolt fixtures, etc.
|1.3||Microcomputer excitation system||Exciting power unit, exciting regulator, dry type exciting transformer, panel and accessories.||3||Sets|
|1.4||Speed governor (with oil pressure device)||GLYWT-1000-16MPa|
PLC controlled; intelligent PID, separated type; including oil pump, oil tank, HP gas tank, digital valve, servomotor, cabinet, etc.
|1.5||Water intake Valves||Motorized butterfly valve, including valve body, actuator, bypass valves, expansion joint, flange, connecting bolts, etc.||3||Sets|
|1.6.1||Cooling water system||Water from turbine volute to cool generator bearings. Including 3 sets cooling water filters, piping, valves, elbows, joints, etc.||1||Set|
|1.6.2||Temperature measuring brake control cabinet||Temperature measurement and alarm, speed measurement and alarm, and brake control||3||Sets|
|1.7||Special tools||Special installation and dismounting tools for water turbine, impeller, generator and speed governor.||3||Sets|
|2.1||Computer monitoring system||Operation station, display, voice alarm system, UPS power, GPS clock, communication manager, operation system, development software and monitor software.||1||Set|
|2.2||Automation components||Water level sensor, braking system (controlled by oil pressure), shear pin, shear pin annunciator, temperature elements, volute inlet water pressure gauge, draft water vacuum pressure gauge, draft water vacuum breaking valve (auto), cooling water flow indicator||3||Sets|
|2.3||Unit LCU||Local control unit, data collecting and pre-processing; synchronization, over-temperature protection, over speed, low frequency, speed measurement, automatic synchronization, automatic frequency & power adjustment, automatic excitation increase & decrease, generator automatic measurement (3 phase current, 3 phase voltage, active power, reactive power, frequency, COSψ, active KWh, reactive KWh, generator temperature, etc),||3||Sets|
|2.4||Common LCU||2 sets of transformation protection (differential protection and backup protection), multi-functional feeding line protection, switchgear signals, power station auxiliary system signals acquisition, and transformer & outdoor line metering.||2||Sets|
|3.1||Generator outgoing CB cabinet||Generator VS1 CB cabinet (including CT)|
Synchronization, current metering, and emergency cut out
|3.2||GeneratorPT cabinet||Voltage measurement and signal acquisition (excitatory transformer is installed inside)||3||Sets|
|3.3||Generator neutral point grounding||Tail end current transformerLZZBJ9-10||18||Pcs|
|4.1||DC power supply|
|4.1.1||DC charging & feeding panel battery pack||220V/100Ah, 12V / 17 Festival micro-computer DC system monitoring device, high frequency switch rectifier power supply, dual power switch, AC/DC sampling box, micro-computer insulation monitor, battery petrol detector, metering instruments, and feed line unit220V/100Ah,12V/17 pcs||1||Set|
|4.2.1||Diesel generator||Backup power supply||1||Set|
|4.2.2||Station distribution panel||DZ47-32 air switch, circuit breaker, current transformer||1||Set|
|5.1||Main transformer||S11-5000/20,20KV/6.3/KV Y,d11||1||Set|
|5.2||Main transformer||S11-2500/20,20KV/6.3/KV Y,d11||1||Set|
|5.3||Circuit breaker||ZW7-40.5/T1600 (with CT)||4||Sets|
|5.6||Fuse||RXW0-22/0.5 (3 pcs/group)||2||Sets|
|5.8||Transformer for auxiliary station||S11-80KVA-20KV/0.4KV|
LV voltage:400V;HV voltage:20KV
|5.9||Potential transformer||JDJ-20 20KV/0.1KV||2||Sets|
|5.10||Potential transformer||JDJJ2-20 |
20KV/ √ 3 0.1KV/ √ 30.1KV/3
|5.11||Lightning arrestor||HY5WZ-42/134(3 pcs/group)||2||Sets|
|5.12||Metering device MODEL data transmission||Withepoxy outdoor type PT andCT||1||Set|
|6||Spare parts and special tools|
|7||Hoisting equipment for power station|
|8||Air compressing system|
|9||Oil supply system|
|13||Outdoor lighting system (by Owner)|
|14||Administration and living facilities (by Owner)|
|15||Maintenance workshop and laboratory (by Owner, if necessary)|
|16||Security guard and monitoring (by Owner)|