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Substation and MCC Engineer job simulation

Join the protection and commissioning team for a new 11 kV substation and motor control centre: relay settings, CT sizing, injection tests, an inrush trip and a safe energisation.

Substation and MCC Engineer job simulation
  • Free: days 1 to 5, about 11 h 50 min of tickets
  • Premium: days 1 to 20
  • Checked as you go
  • Reviewed 19 Oct 2026

The project

You join Hallowmere Power Engineering Ltd (simulated company)

Hallowmere Power Engineering Ltd (simulated company) is a electrical protection and commissioning contractor in Manchester. You help its team deliver a project for Ravensdale Glass Works Ltd (simulated company), at New 11 kV substation SS-2 and motor control centre MCC-3 (project SMC-700).

You are the junior engineer on the protection and commissioning team for a new substation and motor control centre. In four weeks you read the single-line diagram, size a current transformer, check the relay settings, grade the incomer against the transformer feeder and complete the MCC bucket schedule, and you refuse to load a settings file nobody has controlled. The client then swaps the transformer for a bigger one after procurement and you work out what it touches, including a fault level that outgrows the incomer breaker. A relay test fails because of a wrong time multiplier, a CT is found reversed at injection, and the differential relay trips on transformer inrush. You review the switching programme and, with the Authorised Person away, say no to energising with a permit open. The skill is to be exact and to protect people first.

The people in the story are roles, such as Lead Engineer, not real people.

What you will do

By the end you will have

  • Read a single-line diagram with relay function numbers and size a current transformer
  • Set and grade overcurrent relays and set the instantaneous element above inrush
  • Judge relay secondary-injection tests and find a reversed CT polarity
  • Handle a larger transformer after procurement: currents, settings, fault level and breaker ratings
  • Find why a differential relay tripped on energisation and refuse to energise with an open permit

Day by day

The plan, ticket by ticket

Self-paced. A day opens when you hand in the previous day's tickets.
Substation and MCC Engineer job simulation plan
DayTicketKindTimeEdition
1Induction: high voltage safety and relay testing rulesQuiz50 minFree
1Relay function numbers on the single-line diagramTable1 h 10 minFree
2Read the single-line diagram in the lab3D lab1 h 15 minFree
3Size the current transformer for relay R2Calculation1 h 20 minFree
3Check the protection setting schedule Rev ADocument review1 h 20 minFree
4Grade R1 against R2 at the maximum fault currentCalculation1 h 30 minFree
4Grade the incomer relay in the lab3D lab1 h 15 minFree
5Complete the MCC-3 bucket scheduleTable1 h 30 minFree
5Load the file from the USB stick for tomorrow's inspection?Decision40 minFree
5Cover note for the protection setting scheduleWriting1 hFree
6Judge the R2 secondary-injection test resultsTable1 h 20 minPremium
7The instantaneous setting on R2: above inrush, still seeing faultsCalculation1 h 30 minPremium
8Change impact note: the 2500 kVA transformerWriting1 h 40 minPremium
9LV fault level before and after the transformer changeCalculation1 h 20 minPremium
10Check the setting schedule Rev B after the transformer changeDocument review1 h 20 minPremium
11Matching factors for the transformer differential relayCalculation1 hPremium
12Read the through-current injection on the differential relayTable1 h 10 minPremium
12Flip the CT polarity in the relay settings?Decision40 minPremium
13Commission a star-delta bucket3D lab1 h 30 minPremium
14Why did the differential relay trip on energisation?Table1 h 20 minPremium
15A motor that keeps tripping: find the cause in the MCC3D lab1 h 30 minPremium
16Check the switching programme for the energisationDocument review1 h 20 minPremium
17Energise tonight with a permit open and an earth unrecorded?Decision40 minPremium
18Capstone: the protection and commissioning packHand-in4 hPremium
19Safe isolation of an MCC bucket under permit3D lab1 h 30 minPremium
20A conversation about your own workViva45 minPremium

Real documents

The documents you will work with

Project documents
NumberDocumentRevEdition
SMC700-BOD-001Basis of design and protection setting rules2Free
SMC700-SLD-001Single-line diagram, SS-2 and MCC-3CFree
SMC700-CTC-001Current transformer data and burden checkAFree
SMC700-PSS-001Protection setting schedule, relays R1 and R2AFree
SMC700-MCS-001MCC-3 bucket schedule and starter rulesAFree
SMC700-HSE-001Site safety rules for the substation and MCC3Free
SMC700-RSF-001Relay settings register and the file found on siteAFree
SMC700-TST-001Relay R2 secondary-injection test reportAPremium
SMC700-ECR-001Client change: transformer T1 replaced by a larger unitAPremium
SMC700-PSS-001Protection setting schedule, transformer replacedBPremium
SMC700-D87-001Transformer differential commissioning data and through-current injectionAPremium
SMC700-INR-001Energisation event record: differential relay trip1Premium
SMC700-SWP-001Switching programme for the energisation of SS-2APremium
SMC700-PTW-REGPermit and earth register at 17:00 on D171Premium
SMC700-HOV-001Protection and commissioning handover requirementsAPremium

Tools

In the industry, and here

In the industryHere
Protection setting and coordination softwareSettings and grading you calculate by hand from stated formulas
Relay secondary-injection test setTest reports with measured values that you judge and explain
Single-line diagrams and MCC schedulesDocuments you read, check and complete
Permit to work and switching programmesRegisters and programmes you review, and the MCC lab for safe isolation and fault finding

Standards

The standards the work follows

  • IEC 60255-151
  • IEC 61869-2
  • IEC 61936-1
  • IEC 61439-1
  • EN 50110-1 (safe operation)

Prepare

Labs and study materials

Free, and linked where a ticket needs them.

3D labs used

Study before you start

What you get

Free, certificate and Premium

Free

Days 1 to 5, every ticket checked, model answers, the 3D lab and a profile entry.

Free

Certificate (optional)

  • A graded, verifiable certificate with your score and band
  • A public verification page and QR code
  • One-click add to LinkedIn as a licence or certification
  • A Verified mark on your profile entry

₹499

Premium

Premium job simulation

  • The full four-week project: change requests, site work, faults and handover
  • A capstone deliverable reviewed by an engineer
  • An AI viva on your own work
  • The graded certificate and a work record PDF with your skill scores
  • Priority help from our team
₹1,499The certificate is included. If you bought it, its price is credited.

On your profile

How it shows on your profile

It shows on your EDWartens profile under Work experience, marked as a job simulation.

Work experience

Substation and MCC Engineer (job simulation)

Hallowmere Power Engineering Ltd (simulated company)

11 h 50 min active hours logged · Your dates

Verified, with the certificate

A job simulation is a realistic training project at a simulated company. It is not employment, an internship or a work placement. Hours are active hours the learner logged on EDWartens.

Questions

Quick answers

Do I need to be a power engineer already?

No, but electrical fundamentals help. The simulation gives every formula it uses in the documents so that each answer can be worked out.

Is the glassworks a real one?

No. Ravensdale Glass Works and Hallowmere Power Engineering are made-up companies and the site is simulated. The documents, tests and situations follow what a junior protection and commissioning engineer meets.

Does it make me authorised to work on high voltage?

No. It teaches the order of work, the paperwork and the reasoning. Authorisation to work on HV equipment comes from your employer and local law, and always needs training on site.

How long does it take?

The free week is about twelve hours over five days. The full Premium edition runs over twenty working days and about thirty to forty hours, at your own pace.

What do I get at the end?

A work record with scores by task and skill, which shows on your EDWartens profile under Work experience, marked as a job simulation.

Is the Substation and MCC Engineer job simulation free?

Yes, to start. Days 1 to 5 are free. The certificate and the Premium edition are optional and are priced on this page in your currency.

Does it count as work experience?

It shows on your EDWartens profile under Work experience, marked as a job simulation. It is not employment. A job simulation is a realistic training project at a simulated company. It is not employment, an internship or a work placement. Hours are active hours the learner logged on EDWartens.

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Last reviewed 19 October 2026.