Online DGA
For evolving fault-gas visibility and condition trending in oil-filled transformers.
MTE solution →Resources
Checklists for the next transformer decision.
Use these screening lists before sending an RFQ, accepting an unfamiliar supplier or selecting a monitoring approach.
01 / Buyer RFQ
Minimum data for an availability scan.
A “fastest possible delivery” request still needs enough definition for a maker to confirm technical fit and a credible slot.
Transformer scopeType, quantity, MVA and winding arrangement
System voltagesRated voltages, BIL/LI, frequency and vector group
Applicable standardIEEE/ANSI, IEC, CSA or utility specification
Application and loadingGSU, substation, data center, renewable/BESS or industrial duty
Loss and impedance requirementsEvaluation basis, tolerances and guaranteed values
Accessories and monitoringOLTC, bushings, cooling, DGA, hot spot and communications
Destination and siteCountry/state, altitude, ambient, seismic and transport constraints
Required date and evidenceEnergization target, approved vendors, references and document list
02 / Global alternative
Enhanced supplier screening gates.
Use this before presenting a China-based or other unfamiliar manufacturer as a credible alternative.
Destination and jurisdictionCountry, U.S. 69 kV+ bulk-power exposure and critical-infrastructure status
Funding and procurement rulesFederal/public funding, Buy American requirements and owner restrictions
Country of originTransformer, critical components, software, firmware and remote services
Owner AVLApproved-vendor status or qualification pathway
Factory evidenceRating/voltage capability, test facilities and reference units
Technical complianceClause-by-clause deviations, IEEE/IEC design and documentation
Cyber and remote accessMonitoring devices, credentials, firmware, data route and update control
Lifecycle supportWarranty, spares, field service, commissioning and failure response
Important: This checklist is commercial screening, not legal advice or a government eligibility determination. Rules must be checked again at the time of transaction.
03 / Monitoring
Match the signal to the risk.
Fiber-optic hot spot
For direct internal winding-temperature measurement, preferably defined during design.
FISO solution →Bushing monitoring
For capacitance and dielectric-condition trend visibility at a critical transformer interface.
ZTZ solution →Need the next checklist?