Grid Connection
GB Grid Data
NewSearch generation headroom, fault levels, and network capacity across all 6 GB Distribution Network Operators. Find viable connection sites for solar, wind, and BESS projects.
Cables
Induced Sheath Voltage Calculator
NewStanding voltage induced in single-core cable screens, in trefoil or flat formation, checked against the 65 V ER C55 limit. Gives the longest single-point bonded section the circuit allows.
Cable Volt Drop Calculator
NewVoltage drop for three-phase, single-phase and d.c. circuits including reactance and power factor, plotted against route length with the 3 % and 5 % limits shown.
Protection
IDMT Trip Time Calculator
NewCalculate trip times for IEC Standard Inverse (SI), Very Inverse (VI), Extremely Inverse (EI), and Long Time Inverse (LTI) curves. Enter TMS and I/Is values for instant results.
IDMT Test Comparison
NewCompare on-site relay trip test results against calculated values. Verify whether test results are within acceptable tolerance ranges.
IDMT Curve Grading
NewCompare grading margins between two protection relay curves (including definite time) for a given fault level.
Power Systems
AC Fault Waveforms
NewVisualise AC fault current waveforms based on RMS current and X/R ratio. Calculate make and break values including DC component.
Power Calculator
NewCalculate relationships between active power (kW), reactive power (kVAr), apparent power (kVA), and power factor.
3-Phase Vectors
NewInteractive 3-phase vector diagram showing voltage and current relationships.
Transformers
Transformer Losses Calculator
NewCalculate active and reactive losses of a transformer based on loading. Includes no-load and load losses.
Transformer X/R Calculator
NewConvert between transformer nameplate data (impedance, copper losses) and X/R values for network modelling.