PLATFORM / 07 / EDGE HARDWARE

Custom hardware for the
points your SCADA forgot.

Transformer temperature control with closed-loop fan validation, MID-class revenue meters on every output, and configurable I/O nodes you can drop anywhere on the plant. Built in-house, factory-paired with the DYNVOLT edge stack.

Spec a unit See architecture

±0.3°C

Trafo PT100 accuracy

3-phase

MID Class 0.5S meters

12 ch

Config I/O per node

IP66

Field-rated enclosure

MODULE 01 / TRAFO THERMAL CONTROL

Keep your transformer inside the curve.

Six PT100 channels read top-oil and winding temps direct from the transformer. Hysteresis-bounded fan staging keeps oil between setpoint and ceiling without short-cycling. Every command is logged, every fan is verified.

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4-stage fan banks — independent SSR outputs, programmable thresholds per stage.
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Oil-temp + winding-temp logic — IEC 60076-2 thermal model runs on-device.
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Trip relay on overshoot — fail-safe interlock if comms with the edge node drop.
●
Logic survives comms loss — every threshold, hysteresis band, and interlock is held locally. The controller keeps enforcing the rules on its own and replays the event log when the link comes back.

● TRAFO-T-01 / liveNORMAL

top_oil_temp ............ 68.2°C [OK]

winding_hot_spot ........ 82.7°C [OK]

ambient_t ............... 31.4°C

load_factor ............. 0.78

fan_bank_1 .............. cmd=ON flow=CONFIRMED

fan_bank_2 .............. cmd=ON flow=CONFIRMED

fan_bank_3 .............. cmd=OFF flow=—

fan_bank_4 .............. cmd=OFF flow=—

setpoint ................ 75°C / ceiling 95°C

edge_link ............... ONLINE / fallback ARMED

cumulative_fan_hours .... 1,847h

MODULE 02 / FAN VALIDATION

"On" is not a status. Working is.

A fan can be powered and still dead. We don't measure RPM — we measure whether the fan is actually doing work. An independent flow/current sensor on each bank verifies the unit is moving air. The instant command state and physical reality disagree, the controller raises a critical alarm.

Validation methodBinary work-confirmed (flow / current draw)

Spin-up grace4.0s configurable

Trip conditioncmd=ON & flow=NONE after grace

Alarm latency< 2s end-to-end

Logged eventsstart, stop, fail-to-start, runtime hours

MODULE 03 / REVENUE METERING

Custom power meters on every output that matters.

MID-approved, three-phase, factory-calibrated. Drop them on inverter outputs, AC combiners, transformer LV/HV sides, station service, or aux loads — anywhere you need billable accuracy without waiting for the utility meter.

DV-MTR-3P-630

3-phase output meter

For inverter and transformer outputs up to 630A via split-core CTs. Reads true RMS, kWh import/export, kvarh, frequency, harmonics to the 31st.

Class0.5S (MID)

CT input1A / 5A / Rogowski

Sample rate16 kHz / phase

CommsModbus RTU / TCP, IEC 61850

DV-MTR-AUX-63

Aux & station-service meter

Compact DIN-rail unit for tracking parasitic loads — control buildings, comms, security, tracker drives. Catches the silent yield drain.

Class1.0 (Cl. B)

RangeUp to 63A direct

DisplayOLED, multi-screen

Mount4-mod DIN-35

DV-MTR-MV-2500

MV-side reference meter

For HV transformer-side metering up to 2500A via VT/CT transformers. Used as the cross-check against DSO meters and as the fiscal reference for trader settlements.

Class0.2S (MID)

VT input100 V / 110 V / 200 V

SynchrophasorIEEE C37.118

Time syncPTP IEEE 1588 / GPS

MODULE 04 / CONFIG I/O NODE

Drop a node anywhere you need a signal.

12 channels, software-configurable as digital input, digital output, 4–20mA analog input, PT100/PT1000 RTD, or pulse counter. PoE-powered, IP66, hot-pluggable. Auto-discovered by the edge node — no commissioning script.

●
Mix & match per channel — change a pin from RTD to 4–20mA from the dashboard.
●
Autonomous on comms loss — control logic, setpoints, and interlocks run locally on the node. It enforces the rules and self-maintains until the link returns, then replays buffered telemetry.
●
Edge-cached buffering — 72 hours of telemetry retained locally if the link to control room drops.

DV-IO-12

Pin assignment · Trafo Station 04

P1
RTD

P2
RTD

P3
RTD

P4
RTD

P5
4-20

P6
4-20

P7
DI

P8
DI

P9
DO

P10
DO

P11
DO

P12
DO

+24

PowerPoE+ (802.3at) or 24VDC

CommsModbus TCP, MQTT-SN

EnclosureIP66, -40 to +75°C

CertCE, UKCA, FCC Class B

DEPLOYMENT

Anywhere on the plant.

⌬

Trafo stations

PT100 oil/winding temps, fan bank control, Buchholz relay, oil-level switch, tap-changer position.

⌬

Inverter stations

DC combiner currents, AC output meters, cabinet temp + door interlocks, surge-arrestor status.

⌬

BESS containers

HVAC validation, cell-level temp arrays, fire-suppression health, EMS handshake.

⌬

Tracker controllers

Position feedback, motor current, end-of-travel limits, wind-stow override.

⌬

Met masts

POA, GTI, ambient T, wind speed/direction, soiling sensors. PTP-synced to plant clock.

⌬

POI / utility tie

Synchrophasor measurement, MV reference meter, breaker status, ROCOF event capture.

Hardware that talks to your stack.

Every DYNVOLT edge device feeds the same time-series schema as our SCADA — so a PT100 reading and an inverter MPPT reading land in the same query, with the same timestamp.

Read the architecture →Spec a custom unit

FAQ

Edge hardware — frequently asked

Can't find what you're looking for? Talk to our team →

Do I have to buy DYNVOLT hardware?

No. The platform runs on any Linux edge gateway. Our hardware exists for cases where the plant needs purpose-built control — trafo thermal management, fan validation, or revenue-class metering.

What certifications do the meters carry?

MID Class 0.5S for revenue meters, Class 1.0 (Cl. B) for aux units. CE, UKCA, and FCC Class B on every device.

How does fan validation work without RPM sensors?

A flow / current-draw sensor on each fan bank confirms the unit is moving air. The instant command state and physical reality disagree, the controller raises a critical alarm.

What happens on comms loss?

Every threshold, hysteresis band, and interlock is held locally. The controller keeps enforcing the rules autonomously and replays buffered events when the link returns.

What is the operating range?

IP66, -40 to +75°C. Designed for rooftop trafo cabinets without active cooling.

Platform

Resources

Custom hardware for the
points your SCADA forgot.

Keep your transformer inside the curve.

"On" is not a status. Working is.

Custom power meters on every output that matters.

Drop a node anywhere you need a signal.

Anywhere on the plant.

Trafo stations

Inverter stations

BESS containers

Tracker controllers

Met masts

POI / utility tie

Hardware that talks to your stack.

Edge hardware — frequently asked

Platform

Resources

Custom hardware for thepoints your SCADA forgot.

Keep your transformer inside the curve.

"On" is not a status. Working is.

Custom power meters on every output that matters.

Drop a node anywhere you need a signal.

Anywhere on the plant.

Trafo stations

Inverter stations

BESS containers

Tracker controllers

Met masts

POI / utility tie

Hardware that talks to your stack.

Edge hardware — frequently asked

Custom hardware for the
points your SCADA forgot.