J
Recently a large number of instruments (magflow, optical sensors) were destroyed at the same time because of fault in the 440 V system that traveled into 220 Vac system. We suspect the 220 V rated instruments were subjected to 440 Volts, since there was no UPS for instruments.
what reliable devices are used as industrial standard for protection of 220 V devices against such voltage transients and how are these installed.
pl. suggest best models with recommended ratings.
James
what reliable devices are used as industrial standard for protection of 220 V devices against such voltage transients and how are these installed.
pl. suggest best models with recommended ratings.
James