This standard specifies the terminologies and definitions, product classification, technical requirements, test methods, inspection rules, marking and packaging of low voltage reactive power automatic compensating controller (hereinafter referred to as "controller").
This standard is applicable to low voltage reactive power automatic compensating controller with the rated AC voltage not exceeding 1,000 V (or 1,140V) and frequency not exceeding 50Hz or 60Hz.
2 Normative References
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB 4208 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 4588.2 Sectional Specification: Single and Double Sided Printed Boards with Plated-through Holes
GB/T 5169.7 Fire Hazard Testing for Electric and Electronic Products - Test Methods - Diffusion Type and Premixed Type Flame Test Methods
GB/T 10233-2005 Basic Testing Method for Low-voltage Switchgear and Controlgear Assemblies
3 Terminologies and Definitions
For the purposes of this document, the following terminologies and definitions apply.
3.1
Sampling input
The general name of current sampling input Is inputted into current signal end of controller and voltage sampling input Us inputted into voltage signal end of controller. Controller controls the connection and disconnection of output circuit through carrying out calculation, comparison and judgment for the sampling input.
3.2
Control physical quantity
