GoActuate / GoHybrid — oil pressure units and hydraulic turbine governing systems, 40–160 bar
GoActuate and GoHybrid are hydraulic governing systems for hydropower plant turbines. GoActuate covers low-pressure systems up to 63 bar and high-pressure systems up to 160 bar, while GoHybrid operates at a nominal pressure of 40–160 bar with a variable-speed pump. Together with the GoDigital digital governor they form a complete turbine control loop.
- Pressure
- low up to 63 bar; high up to 160 bar; GoHybrid nominal 40–160 bar
- GoHybrid: oil flow
- 150 / 400 / 630 l/min (unit sizes 1–3)
- GoHybrid: tank volume
- 75–800 l; accumulator 20–1000 l
- GoHybrid: supply
- 400/440/480 V, 3 phases; frequency converter 209–529 V, 42–120 Hz; control circuits 24–240 V DC
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
GoActuate and GoHybrid supply power to the servomotors of the wicket gates, runner blades, nozzle needles and deflectors of turbines, as well as to valve actuators. GoActuate is a classic oil pressure unit for the whole range of pressures found at hydropower plants. Low-pressure systems up to 63 bar suit turbines of all types and large machines in particular. The scope of supply includes a sump tank with a pump group, main distribution valves, a hydraulic accumulator (air-oil pressure vessel), high-pressure air compressors for recharging, sensors and actuators.
High-pressure systems up to 160 bar are often more economical for small and medium machines and are fitted with a piston accumulator station with nitrogen. The manufacturer also supplies kits for extending the service life of ageing low-pressure systems, its own control valves up to DN 200 and TSM 6 moving-coil servo valves with a fast-stop device, which according to the manufacturer last up to three times longer than proportional valves. The control scope covers ring, disc, spherical and needle valves, intake and draft tube gates, hydraulic converters and bypass outlets.
GoHybrid is a patented new-generation unit. The force at the servomotor is still produced by hydraulics, but instead of proportional valves fed from an accumulator, the servomotor is driven directly by a variable-speed pump powered by a frequency converter (closed-loop displacement control). A small, passively connected accumulator retains the emergency closing function. The oil volume is reduced by 60–90 %, maintenance costs by more than 30 % on average, and energy consumption falls by up to 90–95 %. At the Harrsele hydropower plant the unit volume was reduced by 76 %.
Nominal pressure is 40–160 bar, flow 150, 400 or 630 l/min, tanks 75–800 l, accumulators 20–1000 l. Supply is 400/440/480 V three-phase, the frequency converter is rated 209–529 V, 42–120 Hz, control circuits 24–240 V DC, and the working fluid is mineral oil VG 32…68. GoHybrid is compatible with existing digital governors and is supplied with pre-mounted sensors.
Technical specifications
| Pressure | low up to 63 bar; high up to 160 bar; GoHybrid nominal 40–160 bar |
|---|---|
| GoHybrid: oil flow | 150 / 400 / 630 l/min (unit sizes 1–3) |
| GoHybrid: tank volume | 75–800 l; accumulator 20–1000 l |
| GoHybrid: supply | 400/440/480 V, 3 phases; frequency converter 209–529 V, 42–120 Hz; control circuits 24–240 V DC |
| Working fluid | mineral oil VG 32…68 |
| Savings (GoHybrid) | oil 60–90 %, energy up to 90–95 %, maintenance >30 % on average |
| Components | control valves up to DN 200, TSM 6 servo valves |
Request a price and lead time
GoActuate / GoHybrid — oil pressure units and hydraulic turbine governing systems, 40–160 bar. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
Which pressures do GoActuate and GoHybrid cover?
GoActuate has low-pressure systems up to 63 bar and high-pressure systems up to 160 bar. GoHybrid operates at a nominal pressure of 40–160 bar.
What are the parameters of the GoHybrid units?
Oil flow 150, 400 or 630 l/min, tanks 75–800 l, accumulators 20–1000 l. Supply 400/440/480 V, three-phase.
What savings does GoHybrid offer compared with a classic oil pressure unit?
Oil volume is reduced by 60–90 %, energy consumption by up to 90–95 %, and maintenance costs by more than 30 % on average. At the Harrsele hydropower plant the unit volume was reduced by 76 %.
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