PRODUCTS CONDITION MONITORINGTransformers Calisto 2

Calisto 2

Hydrogen, Moisture + Carbon Monoxide Detection Monitor

Accurate and Reliable Way for DGA

Combine early fault detection and monitoring of cellulose degradation. Calisto 2 is innovative for its value-added transformer fault detection and monitoring. Still featuring unequaled performance and stability for the measurement of moisture and dissolved hydrogen—the key gas for detecting incipient faults at their earliest stage—Calisto 2 also offers independent measurement of carbon monoxide, a gas often generated in large quantities when transformer cellulose overheats. Calisto 2 is supplied standard with DNP3.0 and MODBUS communication protocols, thus allowing easy deployment within existing communications and SCADA networks.

Hydrogen, Moisture + Carbon Monoxide Detection Monitor

Hydrogen

Carbon Monoxide

Moisture

FEATURES & BENEFITS

Features

Additional measurement of dissolved carbon monoxide
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

Be alerted to accelerated aging of solid insulation
Make informed maintenance decisions
Easily install and integrate monitor within existing operations
Be alerted to any monitor malfunction and low oil circulation
Easily replaced with Calisto 5 or Calisto 9 if required

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.