Compact relay

Protection Relay - small form factor integrated circuits and reference designs

Description

Single Function Protection Relays (SFPR) are used for time graded current (over-current or short circuit), voltage (over-voltage, under-voltage, voltage unbalance) and frequency protection application. Single function or compact relays are used in low-voltage applications. They are DIN rail-mountable and are easy to install, operate and commission. The wide-range power supply for AC and DC make these relays universal. Compact relays can be single or three phase relays.

Single function protection relays use MCU with an internal ADC for measuring the electrical parameter. A seven segments LED or character LCD is provided to display measured parameters. LEDs are provided for quick indication of the load status and other system functionalities. One or two relay outputs are provided for disconnecting the load during fault conditions. The parameter settings are configured using keys, rotary switches, or potentiometers provided on the front panel. An RS485 interface with MODBUS protocol is provided for networking.

    TI Designs and products can help,

  • Optimize the cost, size and performance of the MCU with integrated AFE and LED drive for capturing and processing of analog input signals and implementing protection algorithm
  • Power supply designs can help improve efficiency for wide input AC and DC voltages
  • Relay drivers and 7-segment LED drivers can be used depending on the drive requirements.
View more

Technical documentation

Application notes & user guides

Application Notes (1)

Title Type Size (KB) Date
PDF 1.02 MB 17 Apr 2018

Product bulletin & white papers

White Papers (1)

Title Type Size (MB) Date
PDF 1006 KB 25 Mar 2019

Technical articles

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

 


大福彩票 天水市 永康市 成都市 商洛市 大庆市 镇江市 临夏市 阜新市 巴中市 萍乡市 崇州市 邓州市 平度市 河津市 台中市 衡水市 明光市 凤城市 吉林省 石首市 龙海市 黄石市 叶城市 都匀市 武穴市 朝阳市 青岛市 凤城市 葫芦岛市 仙桃市 合肥市 孝感市 邢台市 兴城市 平度市 利川市 洮南市 信阳市 常州市 宁国市 南阳市 徐州市 北宁市 邢台市 鹿泉市 池州市 北宁市 台中市 华阴市 延吉市 铁力市 兴城市 淮安市 汉川市 东阳市 焦作市 西安市 佛山市 潍坊市 甘肃省