Primary Activity

Description of the activity of electricity generation from regenerative sources:

I           S.C. HIDRO JEPI S.A harnesses the hydroenergetic potential that comes from 6 intakes, of which 3 are one the surface and the other 3 collect water from springs or drains.

The main features of the intakes from the Caraiman branch are:

Intake of Valea Spumoasa :

Water intake capacity : 1146.1 mdM

Intake type : Rocky terrain drainage

Multiannual average flow capture area : 80 l/s

Maximum flow that can to be captured : 170 l/s

Intake of Caraiman :

Water intake capacity : 1086 mdM

Intake type : Of the river’s surface

Multiannual average flow capture area : 255 l/s

Maximum flow that can to be captured : 260 l/s
The main features of the intakes from the Urlatoare branch are:

Intake of Valea Comorilor :

Water intake capacity : 1160 mdM

Intake type : Collection of two springs

Multiannual average flow capture area : 65 l/s

Maximum flow that can to be captured : 100 l/s

Intake of Urlatoarea Mare :

Water intake capacity : 1090.5 mdM

Intake type : Of the river’s surface

Multiannual average flow capture area : 100 l/s

Maximum flow that can to be captured : 135 l/s

Intake of Urlatoarea Mica 1 and 2 :

Water intake capacity : 1205.8 mdM

Intake type : Of the river’s surface

Multiannual average flow capture area : 30 l/s

Maximum flow that can to be captured : 90 l/s

The harnessing of the hydroenergetic potential was achieved through the help of two small hydropower plants called MHC Buşteni 1 and MHC Buşteni 2 and from 2016 and MHC Buşteni 3.

II.  PRESENTATION OF THE ELECTRICITY PRODUCTION CAPACITY OF MHC Buşteni 1

A. Operating conditions:

The small hydropower plant MHC 1 has the role of adjusting and redeeming the potential of raw water/unfiltered by producing electricity.

The flow adjustment that passes through the turbine is made regarding of the tank’s water level from upstream the turbine. The hydropower is equipped from an automation point of view,protection and remote controlling so it can function completely on it’s own without any staff,only with periodical supervision (lubricating bearings, tighten screws).

Automazation system with a programmable automat (PLC) for microhidrounits includes all the informational and controlling levels, to ensure the plant’s safe operations and at a high level of efficiency and reliability of the hydro.

The command system allows distance communication through the SCADĂ system, with the possibility of remotely transmitting signals and commands : water level, currents, tensions, active power, reactive power, etc.

B.Hydraulic features:

Upstream level : 1083.25mdM

Downstream level : 941.5 mdM

Brute adjusted fall : 141.25 m

Net account fall : 123.05 m

Installed flow : 0.8 m7s

The total length from the inlet of the intakes to the hydroelectric central is  3773m. The pipeline diameter is between 200 si 500 mm.

 C. Equipments:

1. A cluster type Banki,model G 6.021/12g, produced by CINK Hydro-Energi-k.s. built entirely of stainless steel

Maximum turbine power: 835 kW

Rated speed : 750 rot/min

2.    Synchronous Generator

Produced by AEM in Germany, type SE 500 S8 Maximum power at the generator’s terminals: 782 kW

Rated speed : 750 rot/min

Frequence : 50Hz

Power Factor : 0.9

Tension : 400V

3. Command System :

Will ensure the hydro will function in parallel with SEN without any operating staff.

The power evacuation is handled by a 6 KV power cable, through the society’s distribution station .

The system is connected by the society’s station, through a transformer of 6/0.4 kV –lOOO kVA and a LES of 6 kV.

III.  PRESENTATION OF THE ELECTRICITY PRODUCTION CAPACITY OF MHC Buşteni 2

I.  Condiţii de funcţionare :

The small hydropower plant MHC 2 has the role of adjusting and redeeming the potential of raw water/unfiltered turbinated from MHC 1 by producing electricity.

The flow adjustment that passes through the turbine is made regarding of the tank’s water level from the load tank downstream of MHC BUŞTENI 1.

MHC 2 is equipped from an automation point of view,protection and remote controlling so it can function completely on it’s own without any staff,only with periodical supervision (lubricating bearings, tighten screws).

Automazation system with a programmable automat (PLC) for microhidrounits includes all the informational and controlling levels, to ensure the plant’s safe operations and at a high level of efficiency and reliability of the hydro.

II. Hydraulic features :

Normal level in the upstream loading chamber : 944.5 mdM

The pipe axis which leads to MHC 1 : 942.4 mdM

The pipe axis at the valve turbine : 858.35 mdM

Brute adjusted fall : 87.70 m

Drop calculation : 78.7 m

Maximum flow available : 0.8 m3/s

Maximum flow from the turbine : 0.7 m3/s

Multianual average flow available : 0.524 m3/s

Total length of adduction : 1308 m

Diameters of pipelines : 800 – 600 mm

III. Equipment :

1.    Turbine type BANKI(CROSSFLOW) – with two dampers(AD), model G6.024/11 g

Rated speed : 600 rot/min

Maximum turbine power : 464 kW

2. Synchronous Generator:

Rated speed : 600 rot/min

Maximum power terminals :  431 kW

Frequence :: 50 Hz

Power Factor : 0,9

Tension : 0.4 kV

IV. The system is connected by the society’s station, through a transformer of  6/0.4 kV -630 kVA and a LES 6 kV.