Self-learning system, which is recommended for use with OLTC and transformers main tank (power transformers, generator step-up transformers, phase shifters, shunt reactors) with cyclic loading.

In addition to monitoring the humidity, it determines a time window in which the oil expansion vessel expels air and the dehydrating chambers are regenerated.

High Durability Transformer Breathers are filled with self-indicating silica gel desiccant which changes color from blue to pink or orange to green as it becomes saturated with water vapor. Transformer Breathers are designed to enable the quick and easy replacement of the desiccant charge. When the bottom half of the desiccant is pink or green, the charge should be replaced. Replacement of either type of silica gel is available.

It is important to emphasize that, with the exception of routine inspection to determine the condition of the desiccant, our Transformer Breathers are virtually maintenance free.

Advantages:

• Reduce maintenance costs with learned transformer breathing patterns and self-regenerating desiccant
• Maintenance free system increases operation reliability and avoids big problems since there is no more risk of moisture penetration.
• No more environmental pollution or disposal problems because of old drying agent.