Low-voltage synchronous hydro generators 0.4/0.69 kV for small hydropower plants, 100–2000 kVA
Country: Serbia · Model: Synchronous hydro generators LV
Low-voltage synchronous hydro generator, 0.4 or 0.69 kV, for small hydropower plants rated 100–1500 kVA, and the standard size range covers 550, 630, 800, 900, 1000, 1120, 1250, 1400, 1600, 1800 and 2000 kVA. Frequency 50 or 60 Hz.
- Type
- synchronous generator for a hydro turbine
- Power
- 100–1500 kVA (generators for small hydropower plants); standard range 550 / 630 / 800 / 900 / 1000 / 1120 / 1250 / 1400 / 1600 / 1800 / 2000 kVA
- Voltage / frequency
- 400–690 V (0.4 / 0.69 kV) / 50 Hz, 60 Hz
- Shaft height (frame)
- 280–900 (standard range — 355–900)
Technical specifications
| Type | synchronous generator for a hydro turbine |
|---|---|
| Power | 100–1500 kVA (generators for small hydropower plants); standard range 550 / 630 / 800 / 900 / 1000 / 1120 / 1250 / 1400 / 1600 / 1800 / 2000 kVA |
| Voltage / frequency | 400–690 V (0.4 / 0.69 kV) / 50 Hz, 60 Hz |
| Shaft height (frame) | 280–900 (standard range — 355–900) |
| Number of poles | 4–24 |
| Insulation class | F |
| Protection degree | IP23, IP55 |
| Cooling | IC 01, IC 511, IC 611 |
| Mounting | IM B3, B5, V1 |
| Turbines | Francis, Kaplan, Pelton |
| Excitation | brush or brushless |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The pole count of 4–24 corresponds to speeds from 1500 to 250 rpm at 50 Hz, so the generator is coupled to the turbine directly, without a speed increaser. The manufacturer states compatibility with Francis, Kaplan and Pelton turbines. Shaft height is 280–900, and 355–900 in the standard range. Mounting is horizontal IM B3 and B5 or vertical IM V1, with class F winding insulation. Excitation is brush type through slip rings or brushless with a rotating exciter. The low-voltage version is convenient for plants working through a 0.4/10 kV step-up transformer or onto a local grid.
How to choose
The protection type is chosen by the conditions in the machine hall. IP23 with open self-ventilation IC 01 suits a clean dry room, and IP55 with air-tube cooling IC 511 or heat exchanger IC 611 suits a damp or dusty one. The standard range is also made for 6 kV, described in a separate item. For power above 2000 kVA in low-voltage design see the compact generators at 100–5000 kW, and a machine without an excitation system is provided by the induction generator at 100–2000 kW.
Request a price and lead time
Low-voltage synchronous hydro generators 0.4/0.69 kV for small hydropower plants, 100–2000 kVA. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the power range of 0.4/0.69 kV synchronous hydro generators?
The dedicated line for small hydropower plants covers 100–1500 kVA, and the standard range 550 to 2000 kVA. Voltage 400–690 V.
What speeds are possible without a speed increaser?
At 50 Hz from 1500 to 250 rpm, because the number of poles is from 4 to 24. The shaft is coupled to the turbine directly.
Which turbines do these generators work with?
The manufacturer states compatibility with Francis, Kaplan and Pelton turbines. Mounting is horizontal IM B3, B5 or vertical IM V1.
What protection degree and cooling are available?
IP23 with open self-ventilation IC 01 or IP55 with IC 511 or IC 611. Class F winding insulation.
What excitation system is used?
Brush type through slip rings or brushless with a rotating exciter.
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