Hydro-turbine units for Serbian Six Small Hydropower Station Renovation Project

9_SHPP Sveta Petka_ Cultural   Relics

Repair 3 sets of existing   units, upgrade governor and relevant turbine equipment. Horizontal Francis   turbine units with double-runner structure and exposed groove now become the   cultural relics to be protected, and its appearance could not be changed.

HLGT021-W2J-82

282 KW

It is designed in an   integral way by foreign company. There will be a lot of complicities, limits   and design difficulties for the repair and renovation of such power station   projects which shall be the historical and cultural relics of their   countries.

10_SHPP Sievo

Two sets of new horizontal   Kaplan S-type turbines (S-type tubular turbine with rotating blade) will be   assembled in the new plant

GZGT009-WZ-150

760 KW

Adopt CFD design technology   for optimization; new unit is manufactured.

11_SHPP Temac Cultural   Relics

Three horizontal Francis   units (one big unit and two small units) in the original plant shall be   renovated.

Small Unit
  HLGT305-WJ-50

236 KW

There will be a lot of   complicities, limits and design difficulties for the repair and renovation of   such power station projects which shall be the historical and cultural relics   of their countries.

Big Unit
  HLGT309-WJ-74

455 KW

12_SHPP Sokolovica

Three original units in the   plant will be renovated. Replace one set of vertical Francis turbine with   exposed groove with vertical Kaplan Z-type turbine; replace the original two   vertical blade-rotating turbines with new ones (both water head flow and   runner diameter increased). The new Kaplan Z-type turbine will be assembled   with the original concrete inlet part and draft tube based on the given   operation parameters. The new Kaplan turbine shall be designed in a way to   match the shape and dimension of the original concrete spiral case and draft   tube. So large-scale demolition will not be required.

Small Unit
  GZGT025-WZ-106

615 KW

The hydraulic design is made   by foreign company. The unit type is very special, and the runner diameter is   as small as 1060MM. So it is difficult for the design of turbine with   rotating blades.

Big Unit
  ZZK160-LH-175

2153 KW

The hydraulic design is made   by foreign company. It has to match with the shape and dimension of original   concrete spiral case and draft tube. The large-scale demolition is not   required, so there will be a lot of limits and design difficulties.

14_SHPP Vučje Cultural   Relics

Install a set of new Pelton   turbine. Three original turbines (one big unit and two small units) were   repaired twenty years ago, and now the existing turbines have low efficiency.   The big unit is operating in a low efficiency, while the two small units have   the problems in their nozzle orifice and needle valves, so their operation   efficiency is very low. The existing turbines need to be repaired (due to   grease-leakage and painting failure, etc.). The visible parts of the big unit   operate occasionally. These units are planned to operate for tourism purpose.   These units now become the cultural relics, and in order to maintain their   original appearance, these turbines are not allowed to make significant   changes, and the turbine types and forms shall not be changed. A new set of   vertical 6-nozzle Pelton turbine is designed and manufactured as per modern   standards, and shall be installed in the auxiliary plant. After the new unit   is put into operation, the original three old units were shut down for   cultural protection and tourism.

CJGT003-L-78/6×7.5

1356 KW

The unit is 780mm in   diameter, with 6 nozzles. The unit adopts the exposed structure largely,   which is very special. The turbine must support the whole generator and must   operate in a stable way, so it is very difficult for the strength and   structural design, while at the same time, it is required to consider the   convenience of assembly, disassembly and maintenance of unit.

15_SHPP Jelašnica Cultural   Relics

2 sets of horizontal Pelton   turbines are renovated. The project has become the cultural relics. So in   order to keep the original appearance of the equipment, the turbine is not   allowed to make significant changes, its appearance not allowed to be   replaced.

CJGT003-W-70.8/2×5.3

230 KW

There will be a lot of   complicities, limits and design difficulties for the repair and renovation of   such power station projects which shall be the historical and cultural relics   of their countries.