MOG Transformer, also known as a Magnetic Oil Level Gauge (MOG) or Transformer Oil Level Indicator, is an essential transformer accessory used to continuously monitor the insulating oil level inside the conservator tank of oil-filled transformers. Maintaining the correct transformer oil level is important for effective cooling, electrical insulation, and reliable transformer operation.
 
The Magnetic Oil Level Gauge works through a float and magnetic indication mechanism. As the transformer oil level rises or falls, the internal float moves accordingly and transfers this movement to the external indicator dial. This provides a clear visual indication of the oil level without requiring direct mechanical linkage through the conservator wall.
The MOG is suitable for power transformers, distribution transformers, industrial transformers, furnace transformers, generator transformers and electrical substations. It is commonly installed on transformer conservator tanks for monitoring oil levels during normal operation and maintenance.
 
Key Features
Accurate transformer oil level indication
Magnetic float operating mechanism
Clear and easy-to-read indicator dial
Suitable for transformer conservator tanks
Robust construction for outdoor applications
Low maintenance operation
Reliable long-term performance
Available with alarm/trip contacts in suitable configurations
Suitable for new transformer installation and replacement
 
Applications
MOG Transformer Magnetic Oil Level Gauges are used in:
Power Transformers
Distribution Transformers
Industrial Transformers
Furnace Transformers
Generator Transformers
Electrical Substations
Transformer Manufacturing & OEM Applications
Transformer Repair and Maintenance
 
A Magnetic Oil Level Gauge for Transformer provides operators with quick visual information about the conservator oil level and can help identify abnormal low-oil conditions at an early stage. Different MOG configurations and mounting arrangements can be selected according to transformer design, conservator dimensions and required specifications.