Manual SIPP Node EN, Juni 2, 2015
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Beneath a field power transformer there is an oil catch pit, used in case of a transformer breakdown
followed by heavy leakage of cooling oil. The pit secures the leaked oil and protects the surrounding
environment. For the pit to retain function, it must be emptied regularly in an environmentally safe
manor.
In a best case scenario, the pit only contains clean water from rain and snow melting. But due to
impact from temperature, changes which cause minor leaks, and/or spill during maintenance the pit
can also contain cooling oil.
In the past the decision to empty a pit or not was left to the service operator, who performed an ocular
survey. To detect oil content as low as a few ppm with your bare eyes is, needless to say, very
difficult, if not impossible.
The statutory requirements of self-monitoring demand that each discharge of water from a
contaminated environment needs to be measured, documented and archived with best available
technology. To reach a quality assured process with full traceability, every discharge should generate a
protocol.
The product SIPP Node consists of a bilge pump and a device for continuous measuring of oil
concentration in flowing water. SIPP Node discharges clean water (i.e. water with an oil content under
the set limit) and returns water containing a higher level to the transformer pit. The unit monitors the
discharge process and creates a protocol, then uploads it automatically for safe storage and traceability
to our internet based interface SIPP Warehouse.
By draining water through a SIPP product the statutory requirements of self-monitoring are fulfilled
regarding measuring, documenting and archiving.
Figure 1. Schematic picture of discharge with and without SIPP Node
Summary of Contents for SIPP Node 400
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