Downhole · ESP
Pothead
The sealed electrical connector where the motor lead extension plugs into the top of the motor.
What it does
Brings the three phases into the motor while keeping well fluid out of the motor oil.
Basics
| Types | Plug in or tape in |
| Sits on | Motor head |
| Critical for | Motor insulation |
Common failures
- Seal leak that lets fluid into the motor
- Electrical failure at the connection
Troubleshooting
- Symptom
- Ground fault at motor depth with good motor oil
- Likely cause
- Pothead failure
- What to check
- Confirm at teardown; review assembly torque and seals