Automatic transfer switching equipment standards, structure, use of – switches, intelligent buildings – smart home industry
HC intelligent home network Dual power supply can be used to automatically convert the switch has been decades in the domestic use of history, in the absence of standards before the various switches (contactors, circuit breakers, isolating switches, etc.) have been used in the dual power automatic transfer switch above . Since the implementation of national standards GB/14048.11 since, ATSE as an independent low-voltage switch types, is widely used in automatic two-way conversion between the power supply to ensure continuous power supply to critical loads. There are many structural types of dual power switch, this article from the standards, structure, use and so on, to explore.
Standards:
National standards: GB/T14048.11-2002
IEC Standards: IEC60947-6-1: 1998
National standard definition: the one (or several) switch electrical appliances and other necessary component for detecting power supply circuit, and one or more of the load circuit from a power supply automatically switches to another electrical power .
Chinese standard name: Automatic Transfer Switching Equipment
English Standard Name: AutomaticTransferSwitchingEquipment (ATSE)
PC-class ATSE: the ability to access, load, but not for short-circuit breaking current ATSE.
CB level ATSE: with over-current trip device ATSE, its main contacts can be connected and used for short-circuit breaking current
Certification: The current ATSE not to CCC, so a switch could prove compliance with standards is through the sole basis for China Quality Certification Center CQC.
Special Note: In the absence of national standards
before, as long as automatic conversion with loss of power, have been used for two-way power between the automatic conversion, the first is to use two contactors logic controller, plus a combination of products. With national standards in the following selection ATSE national standards must be the minimum requirements the design, manufacture, selection and use. Currently, not implemented because ATSE CCC certification, so a switch could prove whether the ATSE the sole basis for national standards is CQC certification (in accordance with the GB/14048.11 standard);
ATSE standard PC-and CB-level sub-two categories, national standard in their conduct CQC certification type test content is not the same, the certificate issued by CQC are different, can not replace each other, not to be confused;
ATSE is a device by the switch body and test controller, and two-way real-time detection of power state, when the common power supply failure (break phase of a phase or multi-phase, undervoltage, overvoltage, frequency deviation ), the ability to switch automatically switch to standby power. Controller is its integral part, is ATSE and other major difference between low-voltage switch, its functionality, reliability must be given high priority.
Structure analysis:
ATSE generally consists of three components: the switch body, drive / maintain the institutions, the controller
Switch body: means the main contact of the structure, material, dynamic and static contact connection, contact pressure, synchronization, super-way, speed of the moving contacts open, breaking the way and so form.
Drive / maintain the organization: to make contact to complete closure, open transmission. There are three ways, electromagnetic direct drive / hold (eg contactors); excitation + with bar drive drive / machine to maintain; deceleration motor and transmission drive / machine to maintain.
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