GT505F低压线路保护测控装置主要用于低压馈线、分支或母线分段回路的测控与保护。针对低压线路提供一整套集控制、保护、测量、计量和通迅于一体的专业化的解决方案，是智能化PC的理想选择。广泛适用于电力、石化、轻工、煤炭、造纸、钢铁、冶金等诸多行业。

★产品特点：

◆ 辅助电源支持DC 110/220V或AC220V；

◆ 所有接线全部采用即插即拔的插头联接方式，使用具有高可靠性的插件，彻底消除接触不良的隐患；

◆ 保护功能：产品内置丰富的保护功能，仅需简单选择即可实现保护的投入或退出、告警或跳闸；

◆ 测量参数包括：电流参数、电压参数、功率参数、电能参数，功率因数等； 

◆ 强大的变送器功能，内置4-20mA模拟量输出，可选择多种线路运行参数，且范围可调；

◆ 装置存储最新的64次故障参数和信息，故障记录带有时标功能，记录故障发生的年月日时分秒毫秒；

◆ 装置显示故障参数、告警信息、状态指示，便于故障分析，生产效能统计及有选择地合理检修；

◆ 显示指示直观，操作简单，采用中文液晶显示器，直观显示和指示各种参数、信息和状态；

◆ 配置有接地保护功能，可通过附加增选零序电流测量的漏电保护功能；

◆ 4路继电器输出功能，分别为跳闸、合闸、告警、装置异常告警；

◆ 标准配置8路开关量输入，5路专用DI用途固定，3路自定义DI可输入关心的状态量；

◆ 2路标准RS-485通讯接口，使用标准MODBUS-RTU规约；

◆ 安装外形尺寸更合理，可安装于各种抽屉柜中。产品满足常用的GCS、GCK、GHK168、MNS、GZT等包括1/4抽屉在内的成套柜及各种控制箱的安装要求，产品为模块化结构，固定方式灵活多样。      

★产品保护功能：

速断保护、限时速断保护、过流保护（三段一时限）、接地保护、过负荷保护、后加速保护、电流不平衡保护、漏电保护、低电压保护、过电压保护、工艺连锁保护、电压断线告警、弹簧储能监视、控制回路监视。

★产品测量功能：

三相电流、零序电流3I0、电流不平衡度、三相线电压、有功功率(总)，无功功率(总)、功率因数(总)、频率、有功电能、无功电能、电能脉冲计数 。

★产品维护管理功能：

运行状态指示、DI/DO状态查询、SOE查询 ( 64次，有时标) 。

★产品通讯功能：

2路RS-485通讯标准的MODBUS规约。

GT505F low voltage line protection measure and control device is mainly used in the measurement, control and protection of low voltage feeder, branch or bus section circuit. Provide a complete set of control, protection, measurement, measurement and communication in one of the specialized solution for low voltage line, is the ideal choice of intelligent PC. Widely used in power, petrochemical, light industry, coal, paper, steel, metallurgy and many other industries.

This product features:

The auxiliary power supply support DC 110/220V or AC220V;

We all use all the wiring plug and plug connection drawing, using high reliability of the plug-in, eliminate the hidden danger of bad contact;

The protection function: built-in protection function rich, just a simple choice to realize the protection input or exit, alarm or trip;

It includes measurement parameters: current parameters, voltage parameters, power parameters, power parameter, power factor etc.;

The powerful transmitter function, built-in 4-20mA analog output, can choose the operation parameters of various lines, and adjustable range;

64 fault parameters and the latest information in the storage device, fault recording with timing function, record the failure date when ms;

The display device parameters, fault alarm information, status indication, convenient for fault analysis, production performance statistics and selected reasonable maintenance;

The display of visual indication, simple operation, using Chinese LCD display, visual display and various parameters, state information and instructions;

The configuration of a grounding protection function, the leakage protection of zero sequence current measurement of additional members;

The 4 way relay output function, respectively, closing and tripping alarm device, alarm;

The standard 8 way switch quantity input, 5 road 3 road DI special use fixed, custom DI can enter the state concerned;

The 2 standard RS-485 communication interface, using standard MODBUS-RTU protocol;

The installation size is more reasonable, can be installed on various drawers. Products meet the commonly used GCS, GCK, GHK168, MNS, GZT and other 1/4 cabinets, including cabinets, cabinets and various control box installation requirements, products for modular structure, fixed manner flexible and diverse.

This product protection function:

Quick break protection, time limit quick break protection, over-current protection (three a), grounding protection, overload protection, accelerating protection, unbalanced current protection, leakage protection, low voltage protection, overvoltage protection, voltage protection, disconnection alarm process chain, spring energy monitoring and control loop monitor.

The function of product measurement:

Three phase current, zero sequence current, 3I0, current unbalance, three-phase line voltage, active power (total), reactive power (total), power factor (total), frequency, active power, reactive energy, electric energy pulse count.

Product maintenance management function:

Run status directives, DI/DO status queries, and SOE queries (64 times, sometimes).

This product communication function:

MODBUS protocol for 2 way RS-485 communication standard.