Electrified retrofit for a mechanical drilling rig
Mechanical drilling rigs adopt electric drive instead of diesel-engine drive, to raise efficiency and reliability, reduce drilling cost, and limit pollution. The manual names this retrofit for rigs such as 40LDB, 50LDB, and 70LDB.
- Retrofit
- 40LDB
- 50LDB
- 70LDB
Last reviewed 2026-10-27 (Asia/Shanghai)
What this page covers
What the system comprises
A high-voltage incoming cabinet, transformer, frequency inverter, 400 V switchgear, 600 V switchgear, a PLC cabinet, a remote driller's console, and other equipment.
Features named in the manual
Configuration matched to the equipment already on the rig, variable-frequency motor drive with limited impact on the grid and a wide speed range, remote fault diagnosis, and remote monitoring of operating parameters.
Permanent-magnet motor
The same spread describes a permanent-magnet motor: the magnet is the excitation source, the structure is simple, and power density and efficiency are high.
In scope
- Describe electrified retrofit of mechanical drilling rigs.
- Name the rig classes the manual prints.
Outside this offer
- Repeat the sizing table on this solution page.
- Invent a fuel-saving percentage.
Case captions in the manual include an electrification retrofit in Indonesia and a Sinopec electrification retrofit of a mechanical drilling rig. Those captions are listed on the cases page. They are not rating sheets.