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Relay protection service signals
Electromechanical protective relays operate by either, or. Unlike switching type electromechanical with fixed and usually ill-defined operating voltage thresholds and operating times, protective relays have well-established, selectable, and adjustable time and current (or other operating parameter) operating characteristics. Protection relays may use arrays of, shaded-pole, magnets, operating and restraint coils, solenoid-type operators, telephone-relay contacts.
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Cable tray after-sales service
After-sales services for cable trays are designed to ensure the smooth and continued operation of cable trays after installation. We have more than 30 production lines and can customize production according to your requirements.