Easeus Solutions.

ELECTRICAL DESIGN

Easeus Solutions offer electrical and automation control panel design and installation. Get electrical designs for power supply, power protection, reliable data transmission, and effective cabinet/control panel utilization.

A good control panel design should have, but not limited to, the following:

• Proper earthing
• Power protection e.g. circuit breakers, surge diverters and protection relays
• Safety features including emergency stop
• Isolation of subcomponents/subsystems
• Correct colour-coding and labeling
• Effective mounting of interface buttons and HMIs
• Quick swap on components once a fault has been identified
• Proper cable management
• Mitigation of electro-magnetic interference, harmonics, surges etc
• Eliminate electrical noise for instrumentaion and communication devices
• Avoid ground loops for instrumentation devices
• Proper sizing of electrical and electronic components
• Proper sizing, cooling and ventilation of the cabinet

Power protection and protective relays

In electrical engineering, a protective relay is a relay device designed to trip a circuit breaker when a fault is detected. They provide detection of abnormal operating conditions such as over-current, overvoltage, reverse power flow, over-frequency, and under-frequency.

A microprocessor-based digital protection relay have replaced the functions of many discrete electromechanical instruments. These relays convert voltage and currents to digital form and process the resulting measurements using a microprocessor. The digital relay can emulate functions of many discrete electromechanical relays in one device, simplifying protection design and maintenance. Each digital relay can run self-test routines to confirm its readiness and alarm if a fault is detected. Digital relays can also provide functions such as communications (SCADA) interface, monitoring of contact inputs, metering, waveform analysis, and other useful features. Digital relays can, for example, store multiple sets of protection parameters, which allows the behavior of the relay to be changed during maintenance of attached equipment. Digital relays also can provide protection strategies impossible to implement with electromechanical relays. This is particularly so in long-distance high voltage or multi-terminal circuits or in lines that are series or shunt compensated.

Numerical relays are the product of the advances in technology from digital relays. Generally, there are several different types of numerical protection relays. Each type, however, shares a similar architecture, thus enabling designers to build an entire system solution that is based on a relatively small number of flexible components.