PRODUCTS CONDITION MONITORINGTransformers Calisto

Calisto

Hydrogen + Moisture Detection Monitor

Accurate and Reliable Way for DGA

Calisto® is a simple and reliable system for detecting transformer incipient faults at their earliest stage. It provides unequaled stability at low concentration levels and is field-installable in less than 2 hours. The monitor offers additional value through on-line monitoring of dissolved water and can be easily networked for monitoring entire substations. Used in conjunction with other Calisto Condition Monitoring products, such as our Myrkos Portable Fault Gas Analyzer,Calisto becomes a key element in managing critical transformers.

Hydrogen + Moisture Detection Monitor

Hydrogen

Moisture

FEATURES & BENEFITS

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 MODELS

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.