Search Results for: 4
- Electrical
What is Microprocessor Based Relay?
Introduction Microprocessor relays provide many functions that were not available in electromechanical or solid-state designs. Relay logic is very important…
Read More » - Vibration Measurement
Introduction to Vibration measuring devices
Table of ContentsDefinitionUnits of VibrationSome effects of VibrationVibration-measuring devicesStroboscope MethodReed VibrometerSeismic-Mass TransducerVibration measuring instruments, Accelerometers Definition Basically, vibration is oscillating…
Read More » - Communication
Difference between VLAN and VPN
Introduction A local area network is defined as a computer network that is in the same area and this means…
Read More » - PLC
How to write a PLC ladder logic program?
The ladder logic programming is commonly used to program PLCs. A PLC takes input from field devices and based on the programming instructions…
Read More » - Instrumentation
Hazardous Areas and Zonal Classification
Introduction A HAZARDOUS area / environment may be potentially prone to: • An accident • The creation of a dangerous…
Read More » - Instrumentation
Difference between IEC 61508 & IEC 61511 SLC Version
Introduction Each phase of the lifecycle requires input information and delivers output information. The relevant clauses of the standards define…
Read More » - Temperature Measurement
Fiber Optic Temperature Sensors
Fiber optic temperature sensors are used where the temperature measurement is made in hostile environments, in the presence of electromagnetic,…
Read More » - Instrumentation
What is Safety instrumentation system?
Introduction Safety instrumentation is not exclusively a matter of instrument engineering and control.The successful implementation of a security system project…
Read More » - Instrumentation
Active and passive instruments
Introduction We can divide instruments into active and passive according to the consumption of power.”Active” means is that some component…
Read More » - Electrical
3 PHASE Transformers – different connections
What are transformers? The transformer is a static piece of apparatus which transfers electrical energy from one circuit to another,…
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