Substation and MCC lab · Level 7 of 8
Correct the power factor
Level 7 of 8 in the Substation and MCC lab: a free substation and MCC exercise at Advanced level. Size a capacitor bank to take a plant to 0.95, choose its steps for full and light load, and decide whether it needs detuning.
Free · no download. Your work is saved on this device. Updated 18 Oct 2026.
The brief
- Client
- Ashgrove Plastics
- Site
- Moulding hall, LV board 1
- Work order
- WO-MCC-107
- Task code
- MCC-07
- Difficulty
- Advanced
- Type of work
- Design
Size a capacitor bank to take a plant to 0.95, choose its steps for full and light load, and decide whether it needs detuning.
Skills you practise
- Power factor
- Capacitor sizing
- Step selection
- Harmonics and detuning
What the test checks
The acceptance test marks the skills this level practises.
- Power factor
- Capacitor sizing
- Step selection
- Harmonics and detuning
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
Previous: Fault level and breaker checkNext: Find a fault in the MCC
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.