GridBit adds sensors, analysers and a gateway to a secondary substation and shows the state of the MV/LV transformer in real time. It is a retrofit: the primary equipment stays as it is.
Why now
Demand for electricity grows by about 4.1 % a year. Heat pumps and charging points overload lines and transformers that were sized for another time.
Old equipment fails more often under a load that changes through the day.
The problem
Generation and transmission were digitised decades ago, and SCADA shows high and medium voltage in real time. Below the secondary substation the operator works blind.
Without data from the low-voltage side a DSO risks:
How it works
GridBit gives the substation digital senses. Compact modules and sensors go in without long outages, and everything talks Modbus to one gateway.
01Transformer
An infrared camera and optical sensors watch the hot spots without touching them. RFID and contact sensors sit where a cable cannot go. The integrated safety detector reports pressure, temperature, oil level and gas.
02Environment
Optional third-party sensors on the same Modbus line: humidity and temperature, smoke, water and moisture, intrusion, and any sensor with a 0 to 10 V output.
03Gateway
GridBit GWU collects data from the modules and the sensors over Modbus and sends it over the mobile network or Wi-Fi. The link is MQTTS: encrypted and two-way, so commands reach the substation too.
04Platform
The platform runs in the cloud on Microsoft Azure. It opens in a browser on any device, with nothing to install, and the data is encrypted.
The platform
Load and imbalance as gauges, current per phase and in the neutral against its limits, the phase angles as a vector diagram and a table of current, voltage and angle per phase.
The chart marks the hours near the limit and the hours above it. A second tab shows the K-factor, the extra heating that harmonics cause.
The state turns critical, the bell counts the active alarms and the values outside their range turn red, here an imbalance of 36 % and an overloaded hour.
Screens from the interface design, with sample data.
The platform
Load and imbalance as gauges, current per phase and in the neutral against its limits, the phase angles as a vector diagram and a table of current, voltage and angle per phase.
The chart marks the hours near the limit and the hours above it. A second tab shows the K-factor, the extra heating that harmonics cause.
The state turns critical, the bell counts the active alarms and the values outside their range turn red, here an imbalance of 36 % and an overloaded hour.
Screens from the interface design, with sample data.
Planning
A transformer rarely fails without warning. The load creeps up over months as new consumers and plants connect. With the load of every hour against the limit, you know which transformer to resize first and which one still has room.
Illustration, not measured data.
Functions
Problems are found and handled before they grow.
In the platform, by e-mail, by SMS and other channels.
No servers to buy or maintain.
Benefits
Failures are predicted before they happen, which extends the life of the substation components.
Preventing a major failure saves the repair or the replacement. Fewer site visits lower the cost of maintenance.
Regulatory compliance
Continuous monitoring helps meet the requirements and avoid penalties.
Customer satisfaction
Reliable supply and faster grid expansion.
Clients
The most useful and important function for our work is the monitoring of the electrical infrastructure. It gives information about the state of the equipment and the infrastructure and helps us optimise our maintenance costs and our response time.
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Learn moreIt is a monitoring system for the MV/LV transformer of a secondary substation. GridBit adds sensors, analysers and a gateway to the substation, and the platform shows the state of the transformer in real time, with alarms.
No. The system is a retrofit and the primary equipment stays as it is. The compact modules and sensors go in without long outages.
It measures the temperature of the hot spots with an infrared camera and optical sensors, and reads pressure, temperature, oil level and gas from the integrated safety detector. Optional sensors in the room add humidity, temperature, smoke, water and intrusion.
With the load of every hour against the limit of the transformer. The load chart marks the hours near the limit and the hours above it, and a second tab shows the K-factor, the extra heating that harmonics cause.
A GridBit GWU gateway collects the data from the modules and the sensors over Modbus and sends it over the mobile network or Wi-Fi. The link is MQTTS, encrypted and two-way, so commands reach the substation too. The platform is software as a service on Microsoft Azure and opens in a browser.
Because the load on them grows. Demand for electricity rises by about 4.1 % a year, heat pumps and charging points load transformers that were sized for another time, and old equipment fails more often under a load that changes through the day. Hourly load data shows which transformer to resize first.
Tell us how many substations you have and what you want to see in them. We answer with a configuration and a quote.
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