Sichuan Fagao Electric Co., Ltd
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FGZ100 series comprehensive microcomputer protection device
This series of products features a large screen Chinese LCD display, fully enclosed shockproof aluminum alloy chassis, back plug-in structure, indepen
Product details

FGZ100 series comprehensive microcomputer protection device

Product Introduction

The FGZ100 series comprehensive microcomputer protection device is mainly used in power plants and substations with voltage levels below 35KV, to achieve functions such as protection, measurement, and control of their high-voltage switchgear.

This series of products features a large screen Chinese LCD display, fully enclosed shockproof aluminum alloy chassis, back plug-in structure, independent protection and signal outlets, and standardized hardware modules. It highlights the solution to the long-term reliable operation and conventional control of microcomputer protection devices in harsh environments such as high cold, multiple lightning strikes, low temperature, humidity, strong electromagnetic interference, harmful gases and dust. It can be used for the renovation of old power plants and substations, as well as for the construction of new power plants and substations to directly form a microcomputer comprehensive automation system.

The device mainly adopts computer technology, high-speed data processing technology, power electronics technology, etc., integrating multiple functions such as protection, measurement, control, monitoring, and display. It can replace traditional secondary circuits and achieve intelligent control of switches. It can be applied to various types of switchgear and wiring systems, such as single busbar, double busbar, bypass busbar, and dual power supply systems. It can be installed separately on the switchgear or centrally assembled into screens. It can also be connected to the backend system through bus communication to form a power automation system.

performance index

performance index
work environment -20℃~+60℃
Device power supply AC/DC 85~265V
Insulation performance Compliant with IEC255-5 standard
Mechanical properties Compliant with IEC255-22 standard
anti-interference ability Compliant with IEC255-22 standard

product list

product name PRODUCT MODEL Protection function scope of application
line protective devices

FGZ101L

FGZ102L

Time limited quick break protection

Definite time overcurrent protection

Zero sequence overcurrent protection

Overload alarm

Control circuit disconnection alarm

under voltage protection

Recloser function

Suitable for the protection of incoming lines, outgoing lines, and busbars with voltage levels of 35KV and below
Transformer protection device

FGZ101T

FGZ102T

Time limited quick break protection

Definite time overcurrent protection

Zero sequence overcurrent protection

Overload alarm

Control circuit disconnection alarm

Heavy gas (overheating) tripping

Light gas (high temperature) trip

Suitable for the protection of transformer outgoing lines with voltage levels of 35KV and below
Capacitor protection device

FGZ101C

FGZ102C

Quick break protection

Definite time overcurrent protection

Unbalanced current protection

Unbalanced voltage protection

Overvoltage protection

Undervoltage protection

Control circuit disconnection alarm

Suitable for the protection of capacitor outgoing lines with voltage levels of 35KV and below
Motor protection device

FGZ101E

FGZ102E

Quick break protection

Definite time overcurrent protection

Inverse time overcurrent protection

Zero sequence overcurrent protection

overload protection

Undervoltage protection

High temperature alarm

Long startup time protection

Control circuit disconnection alarm

Suitable for the protection of motor outgoing lines with voltage levels of 35KV and below
PT protection measurement and control device

FGZ101P

FGZ102P

Zero sequence overvoltage protection

Overvoltage protection

Undervoltage protection

PT disconnection alarm

Used for PT measurement and protection control in PT cabinets
PT switching device

FGZ101PQ

FGZ102PQ

Zero sequence overvoltage protection

Overvoltage protection

Undervoltage protection

PT switching action

PT disconnection alarm

Used for PT measurement, protection, and switching control in PT cabinets
Backup self feeding device

FGZ101B

FGZ102B

Prepare self throwing action Used for automatic switching of backup power supply for incoming lines or busbars with voltage levels of 35KV and below
Integrated measuring device

FGZ101ZC

FGZ102ZC


Used for measuring and controlling the variables used

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