Quality Policy | Lab
Contribute to DEEMSA’s Quality policy, with a testing laboratory that guarantees the impartiality, confidentiality and technical competence of the LP “DEEMSA”, capable of generating technically valid results that provide the testing service for distribution and medium power electrical transformers. , in compliance with standards, customer requirements, good professional practice and objectivity through continuous improvement within an accredited quality management system for conformity assessment.
Validate transformer Power.
It is simulated that the transformer is operating at its nominal Power during the necessary time, such that the temperature of the transformer does not rise by more than one degree centigrade with respect to the ambient temperature during three consecutive hours.
If the temperature rise does not exceed the design temperature, the transformer meets the Power for which it was designed..
Deemsa use current techniques, such as thermography, which allows us to determine remote temperatures of our equipment in order to study the thermal behavior reached by the different components of our transformers in their different charges.
The atmospheric impulse test is a test that stresses the insulation, since it simulates an atmospheric discharge with voltage and defined time to the NBAI of the transformer insulation.
Transformers are subject to atmospheric discharges, which subject the insulation to very intense voltage transients of short duration.
Transformers are subject to atmospheric discharges, which subject the insulation to very intense voltage transients of short duration.
In addition, our Impulse System has equipment that allows it to measure the current of the impulse generated at the output of the transformer under test, so that the total power of the lightning impulse applied to our equipment can be recorded.
Deemsa caresOH about always having state-of-the-art equipment, duly calibrated and of the best brand, as a result we obtain greater precision and accuracy in the results of our tests, which translates into a better quality of the values obtained..
Ohmmeter used in the ohmic resistance test of the windings and temperature rise, it has two measurement channels, which allows simultaneously measuring two windings of the same transformer at the same time, it has a core demagnetization function to protect the operator of an electric shock, a test current of up to 50 A can be achieved.
TTR for tests of transformation ratio, polarity, recognition of the vector group in transformers, excitation current, etc. Its design allows measure the voltage ratio in three-phase or single-phase equipment, even in CTs. Useful to detect any anomaly in the connections of the equipment, as well as any deviation in the tolerance of the transformation ratio.
+52 55 5824.7292 (93)
+52 55 5822.8100 (11), (22)
+52 55 5824.2225
Av. Alfredo del Mazo No. 20, Fracc. Industrial El Pedregal de Atizapán, Atizapán de Zaragoza, C.P. 52948, Estado de México.
