IEC 62310 FOR STATIC TRANSFER SYSTEMS: NEW STANDARDS TO GUARANTEE PERFORMANCES AND SAFETY

2022-10-21
● Before the IEC 623101, prior to 2008, there was no product standard for the STS. The closest standard used by manufacturers was the IEC 62040 (Uninterruptible power systems (UPS)). Indeed It is a good reference, but the weak points are definitions and tests.
● In fact in UPS standard IEC 62040 there is no definition for “Static Transfer System”, or of the following:
■ Preferred and alternate source
■ Normal mode of operation
■ Transfer and retransfer
■ Switching mode
■ Synchronous and asynchronous transfer
■ Sensitivity
■ Protection class
● Nevertheless the performances and the test procedures are clearly defined. First among all the size is defined with the Current (I) and not as the UPS with the Apparent Power (S).

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STATIC TRANSFER SYSTEMS

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10/2010

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