Detecting high resistance connections in and between electrical circuits such as bonding and contact resistance can be quick and easy with a low resistance ohmmeter. The digital microhmmeter will enable users to identify high resistance electrical connections and perhaps avoid the undesirable consequences that they could lead to, if left undetected.
A low resistance ohmmeter can be used to identify many of the issues that stem from poor electrical connections. Contact resistance is a term used to characterize the quality of an electrical connection. Electrical bonds are a component of everything that requires a connection to an electrical path such as junction boxes,bus work, circuit breakers and switches to name a few. Poor connections can lead to excessive heating, premature equipment failure and damage to the electrical system itself. A good testing and maintenance program will include a low resistance ohmmeter to ensure the quality of electrical connections.
With the continuous evolution in all industries, everything has become more dependent on electrical devices and systems. This increasing dependence calls for certain steps to ensure reliable and consistent functioning of the devices. This is why most companies carry out regular testing and diagnosis of electrical devices and systems using high quality, efficient, and reliable electrical test equipment.
With the continuous evolution in all industries, everything has become more dependent on electrical devices and systems. This increasing dependence calls for certain steps to ensure reliable and consistent functioning of the devices. This is why most companies carry out regular testing and diagnosis of electrical devices and systems using high quality, efficient, and reliable electrical test equipment.
Low resistance measurements are a valuable part of electrical system reliability. This type of testing helps to identify high impedance electrical connections that can result in excess heating, losses and potentially failure of power system components.
Read More »The Importance of a Digital Low Resistance Ohmmeter
A Digital Low Resistance Ohmmeter or DLRO is used to measure the resistance of circuit breaker contacts, welded joints, terminal connections and other bonded surfaces. The resistance measurements are sensitive enough to detect very small changes in test samples. For example, they provide users with the ability to identify loose connections, corrosion or the presence of other contaminants.
The resistance of an electrical connection increases over time due to temperature, cycling, and other environmental stresses. The degradation of these connections can result in excessive losses due to heating and operability issues . Periodic testing of contact resistance and/or other electrical bonds can help to identify changes in the condition of contacts and other electrical connections.
Read More »Detect Problems with Electrical Connections using a DLRO
Circuit breakers are important devices that interrupt current when an electrical fault occurs. If they fail to operate properly during a fault condition, the electrical system can be at risk of being damaged. Additionally, the mis-operation of such a device can lead to costly impacts associated with the interruption of electrical service. Technicians should regularly test for potential problems so the circuit breakers can be verified to operate according to their intended design. Regular maintenance practices provide the opportunity to identify and correct operational issues and ensure power system reliability.