Top Shelf Electric Corp.’s Post

The first module of the Signalling Installers Course (SIC) has now been completed, culminating in all students passing the course. The Electrical Principles 1 course has provided the students the underpinning knowledge to understand electrical theory covering topics such as: System International (SI) Units, Electron Theory. Basic Circuit Theory and Ohm’s Law. Electrical Circuits (Series, Parallel and Compound). DC Power. Magnetism. AC Power and Generators. Transformers. Basic Multi meter Use. Practical Assessment. Knowledge Assessment. This knowledge will provide the students a better understanding how electrical circuitry and components operate on the railway, and better equip them as they progress through the SIC. The second week will see the students attending SPWEE, Basic Diagram Reading and the EFAW courses. #Signalling #Installer #Railway #WellDone

This illustrates the operation of an electrical circuit

Circuit Theory Basics: Key Concepts for Understanding Electric Circuits 1. Voltage, Current, and Resistance - Voltage: The "push" that drives electrons through a circuit, like pressure in a pipe (measured in volts). - Current: The flow of electric charge, similar to water in a pipe (measured in amperes). - Resistance: Opposition to current flow; higher resistance means less current, like a narrow pipe (measured in ohms). 2. Ohm’s Law - Voltage = Current × Resistance. - Basic rule: If resistance increases, current decreases when voltage is constant. 3. Series vs. Parallel Circuits - Series: One path for current; if one part breaks, all stop. - Parallel: Multiple paths; if one fails, others keep working. 4. Kirchhoff’s Laws - Current Law (KCL): Total current in = total current out at a junction. - Voltage Law (KVL): Total voltage in a loop = 0, balancing energy in the circuit. 5. Capacitors and Inductors - Capacitor: Temporarily stores electrical energy, smoothing out voltage. - Inductor: Resists changes in current, helping stabilize the circuit. 6. Impedance (Z) - Resistance + reactance in AC circuits, impacting how AC flows. Measured in ohms. 7. Power(P) - Power = Voltage × Current. The energy a circuit uses or generates, measured in watts. #CircuitTheory #ElectricalEngineering #EngineeringBasics #Voltage #Current #OhmsLaw #KirchhoffsLaws #Capacitors #Inductors #PowerInCircuits #STEMEducation #EEbyAbhishek #EngineeringInsights

48- Electrical GYAN (11-07-2024) As per IE Rule 36 The discharge rod is used for safety purposes to avoid leakage or residual currents while working on 11 kv HT line.

Often you have found NO, NC & COM in the electrical circuits. Most of the electrical circuitry processes depends on “Normally open” & “Normally close” contact. NO – Normally open contact. NC – Normally close contact. COM – Common contact for NO, NC. For example we take a SPDT relay, which have two coil connections, 1 Common, 1 NO & 1 NC connection. We gives +12v on COM and relay coil is off mode, NC contact will have +12v also because it is normally connected to COM contact and NO contact will not have +12v because it’s normally disconnected to COM contact. If we energize to relay coil, NO will be closed with COM contact and NC will disconnect to COM. If we talk about any push type switch, push action will same as active relay coil.

In this short video. The Engineering Mindset covers the basic operation of Ground Fault Circuit Interrupters (GFCI) - used as fast-acting circuit breakers designed to deal with ground faults and help prevent electrocution. #engineering #electronics #electrical

For all your electrical needs in and around Nottingham

NEC Exam Secret Drop! Use the Table of Contents I renamed Article 110 - The Main Electrical Room Biggest hint to go there is the word “EQUIPMENT “ in a question. It’s not specific! Part I - Basic Rules for example, do your work in a neat and workmanlike manner, torque rules, temperature ratings,. Part II - Now I’m building the Main Electrical Room and I need dimensions, words such as “working spaces “, height, width, who can enter, and how to exit. Part III- Question better say over 1,000 volts Part IV - Question better say Tunnel Part V - Question better say Manhole Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage at ________ to the current that is available. A) least approved B) least listed C) least equal D) least above Notice the hint!!! Equipment!!! Is this question a rule or am I building the main electrical room? Go find the answer!! #thesurgemethod #exampreparation #certifiedelectricians

Week 3, Electricity Theory and Lab 1: students became proficient in heavy truck electrical systems and what function each component performs.

Servicing of Electronics and electrical equipment is often overlooked but is important to ensure machine availability and production when your company requires it. Here is a picture of a recent repair and service to a PSU that has come though our workshop here at Wizard Electronics Repair Service Ltd. The client called us to their site with a machine down unable to produce. After a short period of time a temporary fix was put into place until a replacement PSU was on site a few days later. After the temporarily fixed PSU was removed it was sent to us for repair and service. The picture shows the visual condition of the output capacitors of the PSU, some have leaked electrolyte, some are swollen and one is part ruptured from the base at the PCB mounting holes. The client could of avoided the machine down time / call out costs if the PSU had been serviced before it had failed within a planned maintenance window. #service #industrialelectronics #industrialelectrician #repair #repairservices #siteengineer