A DC current limited ammeter protection circuit

Smith C.E.

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A DC current limited ammeter protection circuit

机译：直流限流电流表保护电路

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摘要

Ammeters are always connected in series in the branch where a current is measured. Unfortunately, parallel connection can destroy a meter if connected by mistake, as often happens in introductory electric circuits instructional laboratories. To protect an ammeter from excessive currents caused by parallel connection, an op-amp/Zener diode circuit has been designed to effectively operate as a current-limited ammeter.

机译：电流表始终串联在要测量电流的分支中。不幸的是，并联电路可能会损坏电表，如果错误连接的话，这在入门电路教学实验室中经常发生。为了保护电流表免受并联引起的过大电流，已设计了运算放大器/齐纳二极管电路以有效地用作限流电流表。

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《IEEE Transactions on Education》 |1992年第1期|P.90-91|共2页
作者
Smith C.E.;
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正文语种 eng
中图分类电工技术;
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1. Discussion on ????????Excess-current protection by h.r.c. fuses on medium-voltage circuits???????? and ????????Excess-current protection by over-current relays on medium-voltage circuits???????? before the Mersey and North Wales Centre, at Liverpool, 5th November, 1945 [J] . Electrical Engineers - Part II: Power Engineering, Journal of the Institution of . 1947,第37期

机译：讨论h.r.c的过电流保护。中压电路上的保险丝????????在中压电路上通过过电流继电器进行过电流保护1945年11月5日，在利物浦的默西和北威尔士中心之前
2. The authors' replies to the discussions on ????????Excess-current protection by h.r.c. fuses on medium-voltage circuits???????? and ????????Excess-current protection by over-current relays on medium-voltage circuits???????? [J] . Lythall R.T., Shreeve A.G., Shipton P.J. Electrical Engineers - Part II: Power Engineering, Journal of the Institution of . 1947,第37期

机译：作者对有关h.r.c的过电流保护的讨论的答复。中压电路上的保险丝????????在中压电路上通过过电流继电器进行过电流保护
3. Discussion on ????????Excess-current protection by h.r.c. fuses on medium-voltage circuits???????? and ????????Excess-current protection by over-current relays on medium-voltage circuits???????? before the South Midland Centre, at Birmingham, 4th March, 1946 [J] . Electrical Engineers - Part II: Power Engineering, Journal of the Institution of . 1947,第37期

机译：讨论h.r.c的过电流保护。中压电路上的保险丝????????在中压电路上通过过电流继电器进行过电流保护1946年3月4日，在伯明翰的南米德兰中心之前
4. A Practical Guide to Circuit Selection for Portable Microprocessor-Based, Low Component Count, Near-DC Ammeter for Custom Instruments [C] . Paul E. Stevenson, Jennifer Blain Christen IEEE Life Sciences Conference . 2018

机译：适用于定制仪器的基于便携式微处理器，低组件数，近直流电流表的电路选择实用指南
5. Ultrafast Direct Current Protection Systems for Faster Fault Isolation in Multi-terminal LVDC and MVDC Distribution [D] . Mackey, Landon Kent. 2019

机译：超快直流保护系统，用于多端子LVDC和MVDC分布更快的故障隔离
6. A decoupled circuital model methodology for calculating DC currents in AC grids induced by HVDC grounding current [O] . Lingyu Zhu, Chenzhao Fu, Hao Liu, 2012

机译：用于计算由HVDC接地电流感应的交流电网中的直流电流的解耦电路模型方法
7. DC fault protection of multi-terminal HVDC systems using DC network partition and DC circuit breakers [O] . Rahman Md Habibur, Xu Lie, Bell Keith 2015

机译：使用DC网络分区和DC断路器的多端子HVDC系统的DC故障保护
8. Operational Requirements Document (ORD) for the Alternating Current/Direct Current (AC/DC) Clamp-on Ammeter, ME-563. [R] . 1993

机译：交流/直流（aC / DC）钳式电流表mE-563的操作要求文件（ORD）。

A DC current limited ammeter protection circuit

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