Page 79 - E24 Electrical Notebook

No-Break KS® Mechanical / Electrical Features - 75

How is Kinetic Energy Stored?

The kinetic energy accumulator consists of two rotating parts; the outer rotor (or accu-rotor) runs mechanically free around the inner rotor.
The inner rotor, driven by the central shaft, rotates at 1500 rpm (50Hz) or 1800 rpm (60Hz). It is provided with two sets of windings: a three phase AC
winding and a DC winding.
In normal mode, the AC winding is energised to generate a rotating magnetic field that accelerates the outer rotor to approximately 3000 rpm. Nevertheless,
the net relative speed between the inner and outer ring of the bearings is only 1500 rpm since the shaft itself is rotating a 1500 rpm.
The outer rotor (accu-rotor) stores kinetic energy more effectively than a design with an inner rotor, since the amount of kinetic energy increases
quadratically with the distance from the centre of rotation.
In emergency mode, the DC winding is energised and the outer rotor is coupled to the inner rotor by induction. Its kinetic energy is transferred to the
inner rotor with the result of driving the inner rotor and connected generator rotor. The energy transfer is regulated by accurately controlling the current
injected into the DC winding. The stato-alternator is a totally brushless machine.

No-Break KS® Range Four-Module Container Building

OUTPUT CAPACITY DIMENSIONS AND WEIGHTS
(kVA) Length (mm) Width (mm) Height (mm)

50Hz 60Hz Weight (kg)

100 120 3675 1100 1750 4650 secondary silencer
150 180 3800 1100 1850 5100 primary silencer
200 220 3900 1100 1950 5700
200 200 4300 1700 2163 6560 support steelwork
250 250 4600 1700 2163 7256 shown indicatively
300 300 4600 1700 2163 7256
400 400 5000 1700 2147 10227 Bespoke container designs are available to suit the full range with and
500 500 5000 1700 2147 10227 without control room space, with attenuation as low as 60dB@1m.
630 630 5500 1700 2087 13966
700 700 5500 1700 2087 13966
800 800 6000 1700 2124 14181
900 900 6000 1700 2124 14181
1000 1000 6000 1700 2124 15200
1125 1125 6700 1950 1989 17942
1250 1250 6750 1950 2390 22638
1500 1500 7100 1900 2390 22678
1700 1700 7100 1900 2235 22678
2000 2000 7500 1950 2377 26068
2500 2500 9300 2000 2430 34175
2750 3000 9600 2000 2430 37000

All the above are open configurations with prime rated fuel or emission
optimised engines.

Full turnkey plant room build packages available incorporating acoustics,
exhausts, fuel systems, cooling systems, fire protection and detection,
control and power cabling, switchgear, transformers, building works,
complete power house building (design and build).

The above units can be built in to standard or custom containers:

20 foot ISO HiCube = 100 to 300kVA 75dB(A)@1m

30 foot ISO HiCube = 300 to 700kVA 85dB(A)@1m or with extended
acoustics to achieve 75dB(A)@1m

40 foot ISO HiCube = 700 to 1500kVA 85dB(A)@1m or with extended
acoustics to achieve 65dB(A)@1m

45 foot ISO HiCube = 1700 to 2000kVA 85dB(A)@1m or with extended
acoustics to achieve 75dB(A)@1m with remote radiators

The above is indicative only – for individual specific module data, please
contact us.

EURO-DIESEL (UK) LTD Tel : 01285 640879

First Floor Fax : 01285 652509

101/102 Cirencester Business Park

Love Lane Email : sales@euro-diesel.co.uk

Cirencester GL7 1XD Website : www.euro-diesel.co.uk