μMPS4000-230B Microcomputer Transformer Backup Protection Device Technical and Operating Manual. The main functions are composite voltage locked overcurrent protection, zero-sequence overcurrent protection, zero-sequence overvoltage protection, inter-phase zero-sequence overcurrent protection, overload protection, PT line break detection and alarm, backup protection tripping output application description, protection logic, fault recording, manual separation and closing operation, AC energy measurement, pulse energy measurement, software calibration of measurement channels, SOE record, hardware description, and operation circuit.

μMPS4000 series integrated automation system for substations is a new generation of substation integrated protection device facing the 21st century, consisting of μMPS4100 series line protection devices, μMPS4200 series main equipment protection devices and μMPS4300 series measurement and control devices.

µMPS4000 series substation comprehensive automation system technology and use manual is the product manual of µMPS4000 series substation comprehensive automation system, mainly introduces the characteristics and features of the product, technical indicators, protection principle and function description, value and parameter description, device structure and wiring terminal diagram, panel display operation function description and other content.

μMPS4220A is the three-phase transformer differential protection device in the μMPS4000 series substation comprehensive automation system, which has ratio differential protection, secondary harmonic locked ratio differential protection, differential fast break, CT line break closure and other functions.

This document describes the installation wiring, parameter setting, and operational use of the F2000-M series inverter.