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Stream-Line:
Insulating Fluid Treatment Systems
Insulating Fluid
is vitally important for the safe and efficient operation of many types
of electrical equipment. In addition to its insulating properties, the
fluid is used as a coolant in transformers and as a means of arc suppression
in circuit breakers. In each case the operation of the electrical equipment
depends on the purity of the insulating fluid, which in services can
be contaminated by particles, water, gases and chemical products.
Should electrical
equipment be continuously operated with contaminated fluid, it's efficiency
will be impaired, resulting eventually in the risk of total failure.
Typically insulating fluid is contaminated in the following ways:
- Particles including
fibres, rust and colloidal carbon.
- Free and dissolved
water.
- Gases produced
by fluid ageing, equipment failure and arc suppression in switchgear.
- Chemical products
caused by oxidation, as well as cross contamination by other products.
Although individually each contaminant reduces the insulating characteristics
of the fluid by around 20%, the combination of fibres from insulating
material and water can reduce its performance by up to 90%.
Insulating fluid
treatment maintains the integrity of the fluid and hence the efficient
utilisation of the electrical equipment.
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Vokes
Stream-Line SL Range
The Vokes Stream-Line SL range relies on a high efficiency (99.9%
at 1µm absolute) 'edge type' filter pack, which can be easily
backflushed clean using compressed air.
Utilising
a high performance vacuum pump, typically the SL range will, in
a single pass, reduce water contamination from 50ppm to 5ppm and
dissolved gases from 10% to 0.25% by volume.
The Vokes
Stream-Line SL range offers a high efficiency, low maintenance,
comprehensive solution for treating insulating fluid.
| Available
Documents |
Acrobat
Version |
| Stream-Line
General Brochure |
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| Model |
Rated
Capacity (l/hr)
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Mobility |
| SL05 |
500 |
Fixed |
| SL05 |
500 |
Mobile |
| SL10 |
1000 |
Fixed |
| SL10 |
1000 |
Mobile |
| SL20 |
2000 |
Fixed |
| SL20 |
2000 |
Mobile |
| SL40 |
4000 |
Fixed |
| SL40 |
4000 |
Mobile |
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Vokes
Stream-Line C Range
The Vokes Stream-Line C Range utilises a high efficiency (98.7%@1µm)
disposable Vokes Microfine
filter cartridge, which has been specially developed for use with
insulating fluids.
The C Range
of plants are up to 30% more energy efficient than there SL equivalents,
and still returns performance synonymous with the Stream-Line
name - water contamination reduction from 50ppm to 5ppm, dissolved
gases from 10% to 0.25% by volume all in a single pass.
The Vokes
Stream-Line C Range offers a compact, high efficiency, low maintenance,
comprehensive solution for treating insulating fluid.
| Available
Documents |
Acrobat
Version |
| Stream-Line
General Brochure |
|
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| Model |
Rated
Capacity (l/hr)
|
Mobility |
| C2000 |
2000 |
Fixed |
| C2000 |
2000 |
Mobile |
| C4000 |
4000 |
Fixed |
| C4000 |
4000 |
Mobile |
| C6000 |
6000 |
Fixed |
| C6000 |
6000 |
Mobile |
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Vokes
Stream-Line De-Acid Modules
In use, insulating oil will with time turn acidic and if not corrected
result in the precipitation of sludge leading to, insulation breakdown
brought about by restriction of the cooling effect and corrosion
of the metal surfaces above the oil level caused by condensed acidic
vapours.
Users of electrical
equipment utilising insulating oil, should monitor this and other
contaminants. Once acidity is detected as having reached a maximum
acceptable level, normally between 0.1and 0.5mgKOH/gr, the insulating
oil must be either discarded or regenerated.
Vokes Stream-Line
Fullers Earth Modules have been developed to be utilised in conjunction
with Vokes
Stream-Line SL and C Range plants enabling operators to regenerate
their own oil. |
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