Phase Failure Relay for detection of incorrect phase sequence,total and partial phase loss.The device detects regenerated voltage up to 85% of the nominal voltage(phase-phase).Phase Failure Relay can be used to protect any magnetically controlled three phase equipment that would be damaged if subjected to abnormal phase conditions such as single phasing. Many...

Views: 1726    Update Date: 08/21/2018

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Oil flow switches are used in oil tank storage systems to keep the tank at the best suitable level and ensure the continuous flow of oil during the particular time. Large oil flow switches play the main role behind the efficiency of large oil based industries. When you plan to purchase oil flow switch, you have to consider the metal, size, durability,...

Views: 1608    Update Date: 06/29/2018

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Goldair-control.com posted new product of electronic expansion valves drivers.This is an ideal solution for precision air-conditioning units, shelter, chillers, heat pumps suitable for the applications where the functions of the unit are more important.Very high efficiency, simple configuration and increasingly advanced compressor protection functions make these drivers...

Views: 1871    Update Date: 05/15/2018

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"Oil flow switch” is an equipment for monitoring fluids in pipelines and work with the displacement of a magnetic piston that indicates the increase or decrease of the flow of liquid, activating the contact of a reed switch . The piston is controlled by a spring and returns to the initial position when there is no fluid, even if there is pressure in the...

Views: 1759    Update Date: 04/04/2018

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Goldair is a supplier of high quality refrigeration components like : phase monitoring relay, oil flow switch,oil level regulator,optical level sensor etc. with excellent service and technical support for the customers all over the world. Oil Level Regulator is one of our best sellers. Now, we can offer free sample! Product name...

Views: 1858    Update Date: 03/15/2018

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Oil flow switch is a kind of speed type flow switch. It is by the oil flow velocity impact block slice, the greater the flow velocity of water , the greater the force on the block slice. Today we will share the information of top 10 oil flow switch supplier , hope it can help you to find your good supplier of product oil flow...

Views: 1723    Update Date: 03/01/2018

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Today, let's see our main product OUT280 Oil Level Regulator, used for compressor system. OUT280 Oil Level Regulator Technical Specifications: * Dual voltage: AC 24V 50/60Hz±10% 15V; AC115V 50/60Hz±10% 15VA; AC 230V 50/60Hz±10% 15VA * Permitted ambient temperature: -30..+60℃ * Medium...

Views: 2283    Update Date: 01/08/2018

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Shanghai Goldair Electric System Ltd specializes in automation control system software, hardware design, development and computer systems integration. We are committed to the development and application of SCM technology in the field of electronic integrated circuits control, and made our entrance to the international market in 2000.Our main products include:Phase failure...

Views: 1868    Update Date: 12/04/2017

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The latest phase monitoring relay from Goldair prevent motors from running at temperatures above approved ratings, and provide protection against phase loss, phase reversal, and phase unbalance due to blown fuses, broken wires or worn contacts. It operates on the principle of phase voltage unbalance which may occur in a three phase system. It also protects against...

Views: 1728    Update Date: 10/18/2017

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Good news! Shanghai Goldair successfully passed RoHS testing for Phase Failure Relay products in May 2017. And we achieved the RoHS Certification!

Views: 2204    Update Date: 05/23/2017

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