Circuit & System Protection


Intelligent power management system

5 March 2008 Circuit & System Protection

Mico, the intelligent power distribution system from Murrelektronik, monitors current, indicates current rating and detects overloading. This product range has been supplemented with a 2-channel version, which enables the design of more efficient and easy-to use systems.

Power supply systems have to combine two functions: the need to provide high inrush currents for the startup of an installation, while at the same time they have to ensure a reliable shutdown in case of short circuits or overloads. When using only circuit breakers it is difficult to meet these two requirements in accordance with the applicable standards.

Slow blow fuse characteristics can cope with high capacitive loads, however, they do not reliably react in case of short circuits. In case of a failure the user cannot see which path shows the fault that caused the shutdown. Fast releasing circuit breakers reliably react in case of a short circuit, but with high capacitive loads they react too fast.

Mico supports high capacitive loads (up to 20 mF) on the one hand, and on the other hand it detects overloads even during running operation and safely shuts down. It monitors each current channel using the selected current range. If everything is within safe limits, the corresponding LED lights up green. The LED starts blinking when 90% of the maximum rating has been reached, giving a visual warning. If the selected current range is exceeded, the current path affected will be switched off and the LED starts blinking red. The user can now see at a glance where the fault occurred. This state will be stored and maintained even if power is lost and the application is powered up again.

The modules are equipped with two or four bridgeable channels, so that they can easily and quickly be connected via a bridging system. Thanks to an integrated floating alarm output, the laborious connection of auxiliary contacts is not necessary. In order to obtain a group alarm it is enough to connect a cable to the first and to the final module. The module is equipped with spring clamp terminals, reducing the time required for the connection and ensuring safe contacts in case of vibrations. The integrated labels make identification very easy.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Clearing the Static: Understanding the significance of ESD audits
Actum Electronics Circuit & System Protection
An ESD (Electrostatic Discharge) audit is the first step in establishing an ESD plan, and it is important to include all areas where ESD-sensitive components are being handled.

Read more...
Microchip introduces ECC608 TrustMANAGER
Altron Arrow Circuit & System Protection
To increase security on IoT products and facilitate easier setup and management, Microchip Technology has added the ECC608 TrustMANAGER with Kudelski IoT keySTREAM, Software as a Service (SaaS) to its Trust Platform portfolio of devices, services and tools.

Read more...
Varistors for automotive applications
Future Electronics Circuit & System Protection
TDK Corporation has announced the addition of two new varistors to its AVRH series for automotive applications where both are characterised by the high electrostatic discharge-withstanding voltage demanded to ensure the safe operation of safety-critical automotive functions.

Read more...
Clearing the Static: The importance of ESD wrist straps
Actum Electronics Circuit & System Protection
ESD clothing plays a pivotal role in preventing that people do not charge the products that they are working with.

Read more...
Clearing the Static: ESD clothing and footwear
Actum Electronics Circuit & System Protection
ESD clothing plays a pivotal role in preventing that people do not charge the products that they are working with.

Read more...
Single-phase EMC filters
RS South Africa Circuit & System Protection
TDK Corporation has expanded its portfolio of single-phase EMC filters for AC and DC applications up to 250 V and rated currents from 6 to 30 A.

Read more...
Clearing the Static: The significance of cleaning in ESD control
Actum Group Circuit & System Protection
It is essential that ESD-protected workplace areas and equipment (tables, floors, work mats, trays, tools, machine elements) are cleaned with specialised antistatic cleaners.

Read more...
Clearing the Static: ESD protective packaging
Actum Group Circuit & System Protection
The primary objective of ESD protective packaging is to prevent ESD incidents within the packaging and facilitate the dissipation of charges from the outer surface.

Read more...
New NeoMesh protocol stack version
CST Electronics Circuit & System Protection
NeoCortec has released an updated NeoMesh protocol stack version 1.6 firmware for its NC2400 and NC1000 module series, which now supports the new Sensirion SHT4xA temperature and humidity sensor series.

Read more...
NewFeed feeder protection relay
NewElec Pretoria Circuit & System Protection
The NewFeed Feeder Protection Relay has been designed to protect the connection between solar farms and conventional power grids in both low voltage (LV) and medium voltage (MV) distribution settings.

Read more...