Substation and MCC lab · Level 4 of 8
Commission a star-delta starter
Level 4 of 8 in the Substation and MCC lab: a free substation and MCC exercise at Intermediate level. Set the star-delta timer, the change-over gap and the overload, then test-start the bucket.
Free · no download. Your work is saved on this device. Updated 18 Oct 2026.
The brief
- Client
- Eastvale Water
- Site
- Eastvale booster station, MCC-1
- Work order
- WO-MCC-104
- Task code
- MCC-04
- Difficulty
- Intermediate
- Type of work
- Commissioning
Set the star-delta timer, the change-over gap and the overload, then test-start the bucket.
Skills you practise
- Star-delta starting
- Timer settings
- Overload relay setting
- Commissioning a bucket
What the test checks
The acceptance test marks the skills this level practises.
- Star-delta starting
- Timer settings
- Overload relay setting
- Commissioning a bucket
In this lab
- Safe isolation: lock, tag, prove, test, earth
- Cables, breakers, relays and fault levels
- A 3D switchroom and transformer bay
Levels in the Substation and MCC lab
Part of the Substation and MCC lab
Walk a small substation, isolate a motor bucket safely, grade a relay and fault-find a motor control centre.
About the Substation and MCC lab
Feeds these internships: Control Panel Design and Wiring, Commissioning and Maintenance, Electrical Design.