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Power System Equipment Application
Power Transformer Auxiliary Control & Cooling
Equipment Integration Location
Transformer auxiliary cabinets, cooling control boxes and local control cabinets.
Modular control, monitoring and auxiliary-protection components for transformer auxiliary and cooling systems.
Engineering Task Chain
Follow the control and monitoring task chain.
Functional Modules
Review capability by engineering task.
01
Auxiliary Power Supervision
Supervises supply availability, phase sequence, phase loss and voltage conditions.
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Digital phase / voltage supervision relays - exact series by model matrix
02
Temperature Monitoring
Acquires winding, oil or local temperature for isolation, threshold decisions or signal transmission.
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Digital temperature relays
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STT temperature transmitters - sensor and channel count by project
03
Cooling Fan Staging & Control
Creates fan start and stop commands using temperature thresholds, timing and grouped control logic.
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Temperature relays
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Timing relays
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Auxiliary relays
04
Alarm & Remote Signalling
Collects temperature, supply and fan faults for local display, alarm contacts and remote status.
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SAD / SFA
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PCR isolationPCR isolation
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Auxiliary relays
Application Boundary
Engineering scope
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Not presented as a complete transformer cooling-control cabinet.
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Main-circuit motor protection and transformer main protection remain outside this scope.
RFQ & Engineering Support
Share the application conditions.
A complete engineering drawing is not required. A model, BOM, RFQ or non-sensitive technical information is sufficient to start.
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Transformer and cabinet type
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Auxiliary supply
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Temperature sensors and channels
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Fan groups and control logic
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Current and feedback signals
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Alarm and communication
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Environment and standards
01
Auxiliary-power status
06
Alarm and remote signalling
02
Phase and voltage condition
07
Cabinet environment
03
Temperature start condition
04
Fan staging and timing
05
Current and running feedback
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