100 kW Inclined-Jet Hydro Generator Set

Overview

How it works

An inclined-jet turbine is an impulse machine. A nozzle sends a jet of water at an angle onto the runner blades, and the jet leaves on the other side of the runner. Compared with a classic Pelton wheel, it handles more flow for the same runner diameter and runs faster, which allows a smaller and cheaper generator. It suits medium and high head sites with limited flow.

Our 100 kW set

The turbine is arranged with the generator so there is little to align on site. Blades can be made in stainless steel for better wear life where the water carries fine sediment. The product family covers 40 to 250 kW, and the options table shows the head, flow, speed and voltage ranges we build within.

About the ratings

The ranges listed are for the whole family, not ratings of the 100 kW unit. Head, flow, speed and generator type are set from your site data.

Where it is used

Developers and communities use this type of set on mountain streams, penstocks fed from small reservoirs and irrigation systems with a steep drop. It can power a mini-grid or feed an existing local network.

Choosing a configuration

Voltage (220, 380 or 400 V), frequency (50 or 60 Hz), the number of nozzles and regulation method, generator and excitation type, and the control cabinet and protection scope are selected to suit the site. The set is built and tested in our factory and shipped in containers, with installation drawings and commissioning guidance included.

The 100 kW inclined-jet set versus the other impulse and Francis sets

The inclined-jet turbine is the simplest high-head machine in our hydro range. A single jet strikes a runner at an angle, so there is no complex casing or multi-nozzle manifold. Efficiency is lower than a multi-jet Pelton, but cost, size and maintenance are modest, which suits a village scheme or a farm with a mountain stream.

Compared with the 1 MW Pelton, it is smaller, runs at a single jet, and is meant for lower power and lower head. Compared with the 200 kW Francis, it suits sites with heads of about 35 to 120 m and low flow, where a Francis would be too fast and too sensitive to water quality. Its limit is power: if your site could support several hundred kilowatts, the Pelton or Francis route usually pays back more energy. The ratings given for the series run across 40–250 kW, so the 100 kW size sits in the middle and can be adjusted by changing the nozzle size to match your flow.