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Brush Transformer Gulf LLC
operates a Quality Management System approved to ISO 9001:2008. This is
regularly audited for compliance by Quality Manager who reports directly to
unit head.
Rigorous stage inspection and
testing after every sequence of operation is being carried out with the help
of check sheets and procedures to check the conformity with design and
specifications at important process levels such as winding, coil pressing,
handling and stacking of laminations, coil assembly, connection, drying,
tanking, oil filling etc.
Incoming materials are procured
from Brush approved sources and are subjected to rigorous quality check as per
rigid internal standards based on BS, IEC and Brush standards & practices.
Inspection and Test procedures are
used throughout to ensure the accuracy and consistency of production,
especially in critical areas with records being kept of the operations.
The solid insulation material
paper and transformer board not only fulfill high electrical breakdown
strength requirements but must also feature a good behavior with respect to
partial discharges. These objectives are attained by a suitable selection of
raw materials, their purity and clean processing.
The basic insulation material
contains 8 to 10 % moisture and should be dried out employing heat and vacuum
to extract entrapped moisture. Vacuum of the order of 1mm of mercury has to be
achieved for extraction of moisture and drying of insulation. After completion
of vacuum drying process purified hot transformer oil is filled under vacuum.
Life of transformer is very much depends on the quality of oil and its short
time aging characteristics. Hence meticulous care is taken in using very good
quality oil by employing special purification treatment plant.
For routine, type and special
testing, well established test field facilities like HV test transformers,
impulse generators, heat run test facilities, partial discharge measurements,
tan delta and capacitance measuring facilities are being utilized. The
rigorous tests are conducted with suitable test equipments and accurate
instruments which are periodically calibrated.
The whole Quality
Management System is under constant review and audited by the Quality
Department. This is to ensure that at each stage the work is carried out to
the customer’s requirements and his satisfaction. |
