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PPT Inženjering AD, 37-39, Bulevar Vojvode Mišića St., 11000 Belgrade

phone: +381 11 369 0 168; Fax: + 381 11 369 0 479, office@ppt-inzenjering.rs

Design   ActiveNetwork

1. HYDRO ELECTRIC POWER PLANT “TREBINJE” - REPUBLIC OF SRPSKA 2006

Cylinder Ø 250 / Ø 90 x 4200 mm ………………………………………… 1 pcs.
Hydraulic drive unit
(Reservoir V = 200 l, one pump unit Q = 16 l /min, p = 250 bar, N = 2.2 kW)... 1pcs.

Electro-hydraulic installations for control of slide gate at pre-turbine gate of the HE Trebinje.
Design of a new electro-hydraulic control installation has been done, which facilitates easier manipulation of the gate. New cylinder and hydraulic power unit have been delivered. Electrical installation is now compliant with the new method of control. Testing, installation and commissioning of new electro-hydraulic installation has been performed.


2. HYDRO ELECTRIC POWER PLANT "SAYANO - SHUSHENSKAYA" - RUSSIA 2006


Electro hydraulic installation is designed to control segment gates (2 pcs) of coastal spill dam of HPP Sayano-Shushenskaya.

Cylinder Ø 400 / Ø 160 x 7700 mm …………………………………………… 2 pcs
(Linear position indicator of the gate is built in the cylinder)
Hydraulic drive unit ............................................... .................................... 1pcs.
(Reservoir V = 800 l, one pump unit Q = 35 l /min, p = 320 bar, N = 18.5 kW)
Electric cubicle ……………………………………………………………..1 pcs

Design, manufacture, testing and delivery of equipment have been done.
Installation, testing and handover was completed in 2010


3. THERMO ELECTRIC POWER PLANT “Kakanj” – Bosnia-Herzegovina 2006.


Electro-hydraulic installation for control of slide gate on blocks 5 and 6 in the pump station TE Kakanj.

Cylinder Ø 70 / Ø 32 mm x 2100 ……………………………………………7 pcs
Hydraulic drive unit
(Reservoir V = 125 l, one pump unit Q = 2.5 l /min, p = 250 bar, N = 0.75 kW) ... 1 pc.
Electric cubicle ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1 piece

New design of electro-hydraulic control installation has been dome, which facilitates easier manipulation of the gate. New cylinder and hydraulic power unit were delivered. Electrical installation is now compliant with the new method of control. Testing, installation and commissioning of new electro-hydraulic installation was completed in 2007.



4. HYDRO ELECTRIC POWER PLANT “Djerdap”, SERBIA - 2006

Preparation of the conceptual project of reconstruction (replacement) of electro-hydraulic drive of entry building of the dam, BPZ, "Djerdap 1".
An entirely new electro-hydraulic system for fast pre-turbine gates has been designed based on positive experience from electro-hydraulic system that PPT- Engineering  designed between 1969 to 1974 as original design during the construction of "Djerdap 1". The latest design solutions implemented guarantee the operation of the new system for the next 40 years.


5. HYDRO ELECTRIC POWER PLANT Djerdap, SERBIA - 2006

Production of hydraulic units (pumps) for oil transfer for "Djerdap 1".
Two mobile hydraulic units for transfer of oil with filtration were installed. Accompanying fittings, above all hoses, are adjusted for filling and draining of oil from large cylinders during repair works.


6. HYDRO ELECTRIC POWER PLANT "SANGTUDA 1"-TAJIKISTAN 2007

Electro-hydraulic installation is intended for maneuvering primary gates (four pieces) and maintenance gates (4 pieces) of construction-exploitation dam of the HPP “Sangtuda 1” in Tajikistan.

MAINTENANCE GATES (GATES)
Cylinder Ø 710 / Ø 360 x 9900 mm ………………………………………….. 4 pcs
(New cylinder with piston rod ceramic coating has been installed, with integrated measuring system. Three remaining cylinders underwent general repair)
Control blocks ………………………………………………………………… 4 pcs
Hydraulic drive unit …………………………………………………………… 1 pc
(Reservoir V = 8500 l, 2 pump units Q = 135 l /min, p = 320 bar, N = 75 kW)
Electric cubicle ……………………………………………………………… 1 pc.

BASIC GATES
Cylinder Ø 710 / Ø 360 x 9900 mm ………………………………………….. 4 pcs
(Installed are four new cylinders with ceramic coated piston rods and integrated measuring system,  cylinders were supplied by the Rexroth company)
Control blocks ………………………………………………………………… 4 pcs
Hydraulic drive unit ............................................... ........................................... 2 pcs
(Reservoir V = 8500 l, 2 pump units Q = 135 l /min, p = 320 bar, N = 75 kW)
Electric cubicle ………………………………………………………………. 1 pc

Design, manufacture, testing and delivery of equipment have been done.
Installation, testing and handover of the installation were completed in 2008.

7. HYDRO ELECTRIC POWER PLANT "SANGTUDA 1"-TAJIKISTAN 2007

Electro-hydraulic installation is designed to control pre-turbine slide gates on HPP “Sangtuda 1"in Tajikistan.
PRE-TURBINE GATES
Cylinder Ø 500 / Ø 240x8700 mm ……………………………………………. 4 pcs
Control blocks …………………………………………………………………..4 pcs
Hydraulic drive unit …………………………………………………………… 1 pc
(Reservoir V = L400 l, 2 pump units Q = 400 l /min, p = 320 bar, N = 110 kW, axial piston pump regulated by pressure and flow, two pump units Q = 250 l / min, p = 100bar , N = 55kW, z)
Electric cubicle…………………………………………………………………. 4 pcs

Electro-hydraulic system has been designed and delivered that provided supplement of upper chambers of cylinders during emergency lowering providing necessary force. Cylinders are designed and manufactured in the company PPT-Cilindri and all have integrated measurement system in piston rod, MTS, RF series.
Design, manufacture, testing and delivery of equipment have been done.
The installation was commissioned in December of 2008


8. HYDRO ELECTRIC POWER PLANT "ZARAMAGSKAYA" - RUSSIA 2007

Hydraulic drive is intended for maneuvering of slide emergency-maintenance gate and working gate of the exit opening of the tunnel at Zaramagskaya HPP.
EMERGENCY-MAINTENANCE GATE
Cylinder Ø 630 / Ø 280 x 6900 mm …………………………………………… 1 pc
(Linear indicator of the gate position has been installed in the cylinder)
Control block ................................................ ..................................................... 1 pc.
Cylinder Ø 500 / Ø 250 x 7100 mm …………………………………………… 1 pc
(Linear indicator of the gate position has been installed in the cylinder)
Hydraulic drive unit ............................................... ........................................... 1 pc
(Reservoir V = 1500 l, 2 pump units Q = 85 l /min, p = 320 bar, N = 30 kW)
Electric cubicle………………………………………………………………… 1 pc
WORKING GATE
Cylinder Ø 500 / Ø 250 x 7100 mm …………………………………………… 1 pc
(Linear indicator of the gate position has been installed in the cylinder)
Control block ................................................ .................................................... 1 pc.
Hydraulic drive unit ........................................................... ............................... 1 pc
(Reservoir V = 1500 l, 2 pump units Q = 85 l /min, p = 320 bar, N = 30 kW)
Electric cubicle………………………………………………………………… 1 pc

Design, manufacture, testing, delivery and handover of equipment on-site have been performed in January 2009.


9. HYDRO ELECTRIC POWER PLANT “DJERDAP”, SERBIA - 2007

Revitalization of the electro-hydraulic and pneumatic equipment of water lock "Pancevo” has been done.
Complete overhaul of hydraulic drive installation for three segmented gates of the water lock "Pancevo" has been performed as follows:

- Repair of hydraulic cylinders Ø 280 / Ø 125 x 4360 mm of segmented gates ..................................... .................................................. 6 pcs.
- New position indicators were installed into the cylinder piston rod ................ 6 pcs
- New hydraulic blocks ....................................................... ............................ 3 pcs.
- Overhaul of the hydraulic reservoir V = 1000 l ........................................... 1 pc.
- New pump units Q = 20 l /min, P = 320 bar, N = 15kW .............................. 2 pcs
- New electric cubicle
- New pipeline and associated equipment of the pipeline

10. HYDRO ELECTRIC POWER PLANT "SANGTUDA 1" - TAJIKISTAN 2008

Hydraulic drive is designed to maneuver the basic-segmented gates of the water lock chamber of the final facility on left wing of construction-exploitation water exit.

Cylinder Ø 450 / Ø 220 x 8250 mm ……………………………………………2 pcs
(With installed position indicators in the form of wire)
Control blocks ................................................ ................................................... 2 pcs
Hydraulic drive unit
(Reservoir V = 1450 l, two pump units Q = 80 l /min, p = 320 bar, N = 30 kW) ... 1 pc.
Electric control cubicles ............................................... ..................................... 1 pc

New cylinders were factory tested and delivered, as well as new drive units, new control blocks and a new electric cubicle.
Design, manufacture and supply of electro-hydraulic control system, on-site installation, testing, commissioning as well as on-site theoretical and practical training of the staff have been performed.


11. HYDRO ELECTRIC POWER PLANT “DJERDAP II”, SERBIA - 2009

Delivery and installation of two electro-hydraulic pump unit for emergency intake gate at the HPP “DJERDAP II” - Negotin in Kusjak.
Modernization was performed over the original electro-hydraulic power system developed by PPT- Engineering in 1987, by installation of standardized block for pump unit with flow of up to 200 l / min and pressure of up to 250 bar instead of previous components for control of pump pressure that were installed on pipes. All components are using the technology of logic elements and the filter on the pressure line is connected to the block using flange.


12. HYDRO ELECTRIC POWER PLANT "ROGUNSKA" TAJIKISTAN 2009

Production of workshop technical documentation for fabrication of equipment for hydraulic drive for control of gates in construction tunnels of 1st and 2nd gallery of  “Rogunska” HPP in Tajikistan.
Based on the technical task the project documentation for production, installation and operation of repair chamber gates and basic chamber gates (segmental and slide gates).
Project documentation was verified by an independent consulting company, after which the production of equipment started at the beginning of 2010.


13. HYDRO ELECTRIC POWER PLANT "ROGUNSKA" TAJIKISTAN 2010

• REPAIR GATE CHAMBER
Cylinder Ø 1000 / Ø 710 x 770 mm …………………………………………….3 pcs
Hydraulic drive unit
(Reservoir V = 1500 l, pump unit Q = 195 l /min, p = 320 bar, N = 75 kW )........ 3 pcs.
Electric control cubicle ............................................... ..................................... 3 pcs
Hydraulic drive is designed to maneuver the six repair-slide gates of construction tunnels of the first and the second gallery.
Design of a new electro-hydraulic control installation has been done, which facilitates easier manipulation of the gates.
New driving units were f
actory tested and delivered as well as new control cubicles and new pipe distribution system that is installed together with existing repaired hydraulic cylinders.
Commissioning of electro-hydraulic installation was completed in November 2012.

• CHAMBER OF BASIC EMERGENCY - REPAIR GATES
Cylinder Ø 800 / Ø 400 x  7640 mm ………………………………………… 6 pcs
Control blocks ................................................ ................................................. 6 pcs
Hydraulic drive unit
(Reservoir V = 10000 l, two pump units Q = 260 l / min, p = 320 bar, N = 90 kW) .. 1 pc.
Electric control cubicle ............................................... ..................................... 6 pcs
Hydraulic drive is designed to maneuver six basic emergency - repair gates of construction tunnels of the first and the second gallery.
Design of a new electro-hydraulic control installation has been done, which facilitates easier manipulation of emergency-repair slide gates.
New drive units were f
actory tested and delivered, as well as new control blocks, new electric cubicles and new pipe distribution system that are mounted on existing repaired hydraulic cylinders.
Commissioning of electro-hydraulic installation was completed in November 2012.

• CHAMBER OF BASIC RADIAL GATES
Cylinder Ø 560 / Ø 250 x 6730 mm …………………………………………… 6 pcs
Gate position indicator - an independent circuit ............................................ ..... 6 pcs
Control blocks ................................................ .................................................... 6 pcs
Hydraulic drive unit
(Reservoir V = 4000 l, two pump units Q = 245 l /min, p = 320 bar, N = 90 kW) .. 1 pc.
Electric control cubicles ............................................... ..................................... 6 pcs
Hydraulic drive is designed to maneuver six basic segmented - work gates of construction tunnels of the first and the second gallery.
Design of a new electro-hydraulic control installation has been done, which facilitates easier manipulation of segmented gates.
New drive units were f
actory tested and delivered, as well as new control blocks, new electric cubicles and new pipe distribution system that are mounted on existing repaired hydraulic cylinders.
Commissioning of electro-hydraulic installation was completed in November 2012.


14. HYDRO ELECTRIC POWER PLANT "ROGUNSKA" TAJIKISTAN 2010


• CHAMBER OF INCIDENT-REPAIR GATES OF THE TEMPORARY INTAKE PENSTOCK

Cylinder Ø 1060/450 x 7600 mm ……………………………………………2 pcs

(With built-in stick position indicator)

Hydraulic drive unit
(Reservoir V = 6000 l, two pump units Q = 340  l  min, p = 255 bar, N = 200 kW) ……….1 pc

Control blocks ................................................ ............................................... 2 pcs
Electric control cubicles ...................................................................................2 pc


The investor has approved of the project in September 2011. The equipment was delivered in December 2012.


Hydraulic drive unit
(Reservoir V = 1100 l, two pump units Q = 60  l /min, p = 135 bar, N = 15 kW) ………………………………………………………………………………...8 pc

Control blocks ................................................ ................................................ 8 pcs
Electric control cubicles ...................................................................................8 pc


Each electric-hydraulic drive is designed to maneuver a single slide gate which enables the filling and emptying of naval lock chamber.
Design of a new electro-hydraulic control installation has been done, which facilitates easier manipulation of gallery slide gates.
The drive units and hydraulic cylinders were f
actory tested and delivered, as well as new control blocks, new electric cubicles and new pipe distribution system.
Commissioning of electro-hydraulic installation was carried out in two stages in April 2013 and April 2014.



15. HYDRO ELECTRIC POWER PLANT “DJERDAP II”, SERBIA - 2010

Modernization was performed over the original electro-hydraulic power system developed by PPT- Engineering in 1987, by installation of standardized block for pump unit with flow of up to 200 l / min and pressure of up to 250 bar instead of previous components for control of pump pressure that were installed on pipes. All components are using the technology of logic elements and the filter on the pressure line is connected to the block using flange.


16. HYDRO ELECTRIC POWER PLANT "ROGUNSKA" TAJIKISTAN 2010


• CHAMBER OF INCIDENT-REPAIR GATES OF THE TEMPORARY INTAKE PENSTOCK

Cylinder Ø 1060/450 x 7600 mm ……………………………………………2 pcs

(With built-in stick position indicator)

Hydraulic drive unit
(Reservoir V = 6000 l, two pump units Q = 340  l  min, p = 255 bar, N = 200 kW) ……….1 pc

Control blocks ................................................ ............................................... 2 pcs
Electric control cubicles ...................................................................................2 pc


The investor has approved of the project in September 2011. The equipment was delivered in December 2012.


17. HYDRO ELECTRIC POWER PLANT "ZAGORSKAYA 2" RUSSIA  2011


• CHAMBER OF INCIDENT-REPAIR GATES

Cylinder Ø 500/200 x 8300 mm ……………………………………………4 pcs

(with built-in rod style micro-pulse linear transducer)

Hydraulic drive unit
(Reservoir V = 1500 l, two pump units Q = 90  l /min, p = 350 bar, N = 45 kW) ………………………………………………………………………………...4 pc

Control blocks ................................................ ............................................... 4 pcs
Electric control cubicles ...................................................................................4 pc

 

The investor has approved of the project in July 2011. The production of the electro hydraulic control system for manipulation of the incident-repair gates has begun. The equipment was delivered in June 2012. Commissioning and final handover of equipment was carried out in March 2013.


18. HYDRO ELECTRIC POWER PLANT “DJERDAP II”, SERBIA - 2012


Modernization was performed over the original electro-hydraulic power system developed by PPT-Engineering in 1987, by delivery and commissioning of two standardized control blocks and two interface control cubicles at two of 8 hydraulic cylinders which drive emergency intake gates instead of existing control unit. All hydraulic components are based on cartridge valve technology.



19. HYDRO ELECTRIC POWER PLANT “POLOTSKAYA”  , BELARUS - 2013


• RADIAL GATES

Cylinder Ø 320/160 x 6200 mm ……………………………………………12 pcs

• FLAP GATES (SPILLWAY)

Cylinder Ø 200/110 x 1800 mm ……..………………………………………4 pcs

(with built-in rod style micro-pulse linear transducer)


Hydraulic drive unit
(Reservoir V = 4000 l, two pump units Q =   (60+30) l/min, p = 200 bar, N = 30 kW) ………………………………………………………………………………...2 pcs

Control blocks ................................................ ................................................ 8 pcs
Electric control cubicles ...................................................................................2 pcs


Each hydraulic drive is designed to maneuver 3 radial gates and a flap gate which empty the water in the accumulation and provides synchronization of hydraulic cylinders driving the same gate.
The drive units and hydraulic cylinders were f
actory tested and delivered, as well as the control blocks, new electric cubicles and new pipe distribution system.
The equipment was delivered in
February 2014 and commissioned in August 2017.


20. HYDRO ELECTRIC POWER PLANT “ZELENCHUKSKAYA”,  RUSSIA - 2014


• EMERGENCY SLIDE GATES

Cylinder Ø 250/110 x 5500 mm ………………………………………….…2 pcs

 (with built-in rod style micro-pulse linear transducer)


Hydraulic drive unit
(Reservoir V = 650 l, two pump units Q =   20 l/min, p = 150 bar, N = 7,5 kW) ………………………………………………………………………………...2 pcs

Control blocks ................................................ ................................................ 2 pcs
Electric control cubicles ...................................................................................2 pcs


Each hydraulic drive is designed to maneuver 1 emergency slide gate of the water intake.

The equipment was delivered in
December 2014 and commissioned in March 2016.


21. HYDRO ELECTRIC POWER PLANT “DJERDAP 2”,  SERBIA – 2014


• HYDRAULIC TRASH RACK

Control block……………………………………………………………….…1 pcs


The hydraulic control block is used  to maneuver the trash rack used to clear debris from the lake.

The hydraulic control block with complete technical documentation was manufactured, delivered and commissioned in September 2014.


22. HYDRO ELECTRIC POWER PLANT “NIZHNE BUREYSKAYA”, RUSSIA – 2014


• EMERGENCY-REPAIR SLIDE GATES


Cylinder Ø 450/200 x 13600 mm ………………………………………….…8 pcs

 (with built-in SSI encoder with draw wire for position measurement)


Hydraulic drive unit
(Reservoir V = 3800 l, two pump units Q =   70 l/min, p = 200 bar, N = 55 kW) ………………………………………………………………………………...4 pcs

Control blocks ................................................ ................................................ 8 pcs
Electric control cubicles ...................................................................................4 pcs


Each hydraulic drive is designed to maneuver 2 emergency repair-slide gates
The equipment was delivered in
July 2015. The commissioning of the equipment was carried out in July 2017.


• SPILLWAY RADIAL GATES


Cylinder Ø 400/180 x 10500 mm ………………………………………….…10 pcs

(with built-in CAN bus encoder with draw wire for position measurement)


Hydraulic drive unit
(Reservoir V = 3600 l, two pump units Qmax = 55 cm3/o, p = 320 bar, N = 55 kW) ………………………………………………………………………………...2 pcs

Control blocks ................................................ ................................................ 5 pcs
Electric control cubicles ...................................................................................2 pcs


One hydraulic drive is designed to maneuver 4 spillway radial gates and the other for 6 spillway radial gates.

 The equipment was delivered in July 2015. The commissioning of the equipment was carried out in July 2017.



23. HYDRO ELECTRIC POWER PLANT “JABLANICA”,  BOSNIA AND HERZEGOVINA - 2015


• EMERGENCY SLIDE GATES


Hydraulic drive unit
(Reservoir V = 1500 l, two pump units Q =   140 l/min, p = 110 bar, N = 30 kW) ………………………………………………………………………………...2 pcs

Control blocks ................................................ ................................................ 2 pcs


Each hydraulic drive is designed to maneuver 1 emergency slide pre-turbine gate.


• BYPASS VALVE


Hydraulic drive unit
(Reservoir V = 125 l, two pump units Q = 12 l/min, p = 25 bar, N = 2,2 kW) ………………………………………………………………………………...2 pcs


Each hydraulic drive is designed to maneuver 1 bypass valve for filling the tunnel with water.

 
The equipment was delivered in
February 2016 and The equipment for emergency slide gate No1 was commissioned in September 2016. The commissioning of equipment for emergency slide gate No2 was carried out in September 2017.


24. HYDRO ELECTRIC POWER PLANT “SANGTUDA”,  TAJIKISTAN - 2015


Electric-hydraulic drive was designed to maneuver 1 emergency-repair slide gate,
with the software solution enabling it maneuver any of the 4 emergency-repair slide gates. The complete technical documentation was drafted for the hydraulic unit, as well as for the energy and control cubicles with the possibility to maneuver all 4 emergency-repair slide gates from the same hydraulic unit.



25. HYDRO ELECTRIC POWER PLANT “DJERDAP II”, SERBIA - 2015


Modernization was performed over the original electro-hydraulic power system developed by PPT Inzenjering in 1987, by delivery and commissioning of two standardized control blocks and two interface control cubicles at another two of 8 hydraulic cylinders which drive emergency intake gates instead of existing control unit. All hydraulic components are based on cartridge valve technology.

The equipment was commissioned in November 2015.


26. HYDRO ELECTRIC POWER PLANT "SAYANO - SHUSHENSKAYA" - RUSSIA 2015


• EMERGENCY-REPAIR SLIDE GATES
Hydraulic drive unit ............................................... .................................... 10 pcs.
(Reservoir V = 3200 l, one pump unit Q = 88 l /min, p = 160 bar, N = 30 kW)

Control blocks ................................................ .............................................10 pcs
Electric cubicle ………………………………………………………….... 10 pcs


Electric hydraulic installation is designed to control emergency-repair slide gates (10 pcs) of HPP Sayano-Shushenskaya.

Design of the hydraulic control drive was carried out, as well as the assembly and factory testing of the drive units, control blocks, electric control cubicles and  pipe distribution system.

The equipment was  delivered in  November 2015. The commissioning of all 10 hydraulic units was completed in December 2016.



27. HYDRO ELECTRIC POWER PLANT “ROGUN”,  TAJIKISTAN - 2015


• EMERGENCY-REPAIR SLIDE GATES

Cylinder Ø 600/250 x 12600 mm ………………………………………….…2 pcs

 (with built-in rod style micro-pulse linear transducer)


Hydraulic drive unit
(Reservoir V = 4500 l, two pump units Q =   117 l/min, p = 250 bar, N = 90 kW) ………………………………………………………………………………...2 pcs

Control blocks ................................................ ................................................ 2 pcs
Electric control cubicles ...................................................................................1 pcs

Electric drive cubicles ......................................................................................1 pcs


Electric-hydraulic drive is designed to maneuver 2 emergency-repair slide gates.
Design of the hydraulic control drive was carried out, as well as the assembly and factory testing of the drive units and hydraulic cylinders, new control blocks, electric control cubicles and new pipe distribution system.

The equipment was delivered in September 2016.


28. HYDRO ELECTRIC POWER PLANT “SANGTUDA”,  TAJIKISTAN - 2015


• EMERGENCY-REPAIR SLIDE GATES


Hydraulic drive unit

(Reservoir V = 2600 l, 2 pump units Q =   400 l/min, p = 350 bar, N = 90 Kw, (axial-piston pumps flow and pressure regulated) and 2 pump units for piston chamber replenishment and additional pressure during gate lowering Q=  240 l/min, p=175bar, N=45kW (gear pumps))…………………………………………………………...1 pcs

Electric drive cubicles .........................................................................................4 pcs
Electric control cubicles .........................................................................................2  pcs


Electric-hydraulic drive is designed to maneuver 1 emergency-repair slide gates,
with the software solution enabling it to maneuver any of the 4 emergency-repair slide gates. Design of the hydraulic control drive was carried out, as well as the assembly and factory testing of the drive units, electric control cubicles and new pipe distribution system.

The equipment was delivered in July 2016. The equipment was commissioned in March 2017.



29. HYDRO ELECTRIC POWER PLANT “JABLANICA”,  BOSNIA AND HERZEGOVINA - 2016


 • EMERGENCY SLIDE GATE

Cylinder Ø 500/180 x 6050 mm ……………………………………………1 pcs

(with built-in rod style micro-pulse linear transducer)


The hydraulic cylinder is a part of the hydraulic system delivered previously by PPT Engineering designed to maneuver emergency slide pre-turbine gate No1. The hydraulic cylinder with complete technical documentation was manufactured, factory tested and delivered.

The equipment was delivered and commissioned in September 2016.



30. SMALL HYDRO ELECTRIC POWER PLANT “VRGUDINAC”, SERBIA – 2016


• EMERGENCY SLIDE GATES


Cylinder Ø 160/80 x 3000 mm …………………………………………….…2 pcs

 (with built-in rod style micro-pulse linear transducer)

Cylinder Ø 125/80 x 2400 mm …………………………………………….…1 pcs

 (with built-in rod style micro-pulse linear transducer)


31. HYDRO ELECTRIC POWER PLANT “UST-SREDNEKANSKAYA”,  RUSSIA – 2017


• HYDRAULIC TRASH RACK

Hydraulic drive unit
(Reservoir V = 150 l, pump unit Q =   21 l/min, p = 160 bar, N = 7,5 kW) ……...1 pcs

Hydraulic cylinder Ø 100/50 x 340 mm ……………………………..……..….…6 pcs

Electric cubicle……………………………………………………………………1 pcs



The hydraulic drive is used to maneuver the flat trash rack for clearing debris from the lake.

The manufacturing of the hydraulic drive is under way (February 2018).


Hydraulic drive unit
(Reservoir V = 125 l, two pump units Q =   3,5 l/min, p = 170 bar, N = 2,2 kW) ………………………………………………………………………………...1 pcs

Control blocks ................................................ ................................................ 3 pcs


Each hydraulic cylinder is designed to maneuver 1 emergency slide gate.
The equipment was delivered in
December 2016. The commissioning of the equipment is underway at the moment (January 2017).


• SPILLWAY RADIAL GATES


Cylinder Ø 200/80 x 3700 mm ………………………….………………….…6 pcs

 (with built-in rod style micro-pulse linear transducer)


Hydraulic drive unit
(Reservoir V = 1000 l, two triple-pump units Q = 3x22 l/min, p = 250 bar, N = 18,5 kW) …………………………………………………………………………...1 pcs

Control blocks ................................................ ................................................ 6 pcs

The hydraulic drive is designed to maneuver 3 spillway radial gates. Two cylinders are used to maneuver each spillway radial gate and their motion is synchronized.

The commissioning of the equipment was completed in December 2016.



32. HYDRO ELECTRIC POWER PLANT “NIZHNE TULOMSKAYA”, RUSSIA - 2017


• SPILLWAY RADIAL GATES


Cylinder Ø 320/220 x 6600 mm …………………………………………..…6 pcs

(with built-in CAN bus encoder with draw wire for position measurement)


Hydraulic drive unit
(Reservoir V = 2800 l, two pump units Qmax = 75 l/min, p = 250 bar, N = 22 kW) ………………………………………………………………………………...1 pcs

Control blocks ................................................ ................................................ 3 pcs
Electric control cubicles ...................................................................................1 pcs


The hydraulic drive is designed to maneuver 3 spillway radial gates.

The equipment was delivered in August 2017.



33. HYDRO ELECTRIC POWER PLANT “ROGUN”,  TAJIKISTAN - 2017


• RADIAL GATES

Cylinder Ø 360/160 x 6500 mm …………………………………….…….…4 pcs

 (with built-in rod style micro-pulse linear transducer)


Hydraulic drive unit
(Reservoir V = 3000 l, two pump units Q =   51 l/min, p = 250 bar, N = 30 kW) ………………………………………………………………………………...1 pcs

Control blocks ................................................ ................................................ 4 pcs
Electric control cubicles ...................................................................................5 pcs

Electric drive cubicles ......................................................................................2 pcs


Electric-hydraulic drive is designed to maneuver 4 radial slide gates.
Design of the hydraulic control drive was carried out, as well as the assembly and factory testing of the drive units and hydraulic cylinders, new control blocks, electric control cubicles and new pipe distribution system.



• EMERGENCY-REPAIR SLIDE GATES

Cylinder Ø 450/200 x 7700 mm …………………………………….…….…4 pcs

 (with built-in rod style micro-pulse linear transducer)


Hydraulic drive unit
(Reservoir V = 4000 l, two pump units Q =   80 l/min, p = 250 bar, N = 37 kW) ………………………………………………………………………………...1 pcs

Control blocks ................................................ ................................................ 4 pcs
Electric control cubicles ...................................................................................5 pcs

Electric drive cubicles ......................................................................................2 pcs


Electric-hydraulic drive is designed to maneuver 4 emergency-repair slide gates.
Design of the hydraulic control drive was carried out, as well as the assembly and factory testing of the drive units and hydraulic cylinders, new control blocks, electric control cubicles and new pipe distribution system.

The equipment was delivered in February 2018.


34. HYDRO ELECTRIC POWER PLANT “DJERDAP II”, SERBIA - 2017


Modernization was performed over the original electro-hydraulic power system developed by PPT Inzenjering in 1987, by delivery of four standardized control blocks and four interface control cubicles at the last four of the eight hydraulic cylinders which drive emergency intake gates instead of existing control unit. All hydraulic components are based on cartridge valve technology.

The delivery of the equipment is currently under way (February 2018).