Calisto

Features

• Precise and accurate hydrogen and moisture readings
• Built-in oil circulation and flow monitoring
• Continuous enclosure and oil conditioning
• Communication protocols: DNP3, Modbus, IEC 61850 (optional)
• Vacuum tolerant
• Substation hardened communication electronics
• Built-in moisture and solubility coefficients for all common insulating fluids

Benefits

• Monitor large fleets of transformers cost efficiently
• Detect and monitor incipient faults using interference-free hydrogen readings
• Correlate moisture behavior with load while monitoring long-term trends
• Compatible with dry-out and degassing operations
• Very low maintenance and worry-free dependability

Calisto online DGA monitors for power transformers and other oil-filled electrical assets

Calisto detection monitors:

	Calisto Hydrogen + moisture Calisto is an online DGA detection monitor that provides precise and accurate hydrogen and moisture readings with unequalled stability at low concentration levels. Detect and monitor incipient faults using interference–free hydrogen readings. Correlate moisture behavior with load while monitoring long-term trends.
	Calisto 2 Hydrogen, moisture + carbon monoxide Calisto 2 is an online DGA detection monitor that provides additional measurement of dissolved carbon monoxide, combining early fault detection (hydrogen) and cellulose degradation monitoring. Carbon monoxide is a gas often generated in large quantities when transformer cellulose overheats.

Calisto diagnostic monitors:

	Calisto 5 5 fault gases + moisture Calisto 5 is a multi-gas online DGA diagnostic monitor for the measurement of five Duval Triangle gases through a proprietary chromatographic method.
	Calisto 9 Complete DGA + moisture Calisto 9 is a multi-gas online DGA diagnostic monitor that measures all seven fault gases plus oxygen and nitrogen with industry-leading detection limits.

Comparison

Brochures/Technical Specs

• Calisto Brochure – English 
• Calisto Brochure – Russian 
• Calisto Brochure – German 
• Calisto Brochure – Bulgarian 
• Calisto Brochure – Spanish 
• Calisto Brochure – French 
• Calisto & Calisto 2 technical specifications
• Calisto 5 & Calisto 9 technical specifications
• doblePRIME Overview

Articles

• Power Factor: Offline, Relative and True
  

  Article by Tony McGrail, solutions director at Doble, from Transformer Technology magazine.

Links

• Morgan Schaffer Document Downloads

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