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TELECOM DC POWER DIAGNOSTICS

DC Plant Efficiency & Rectifier Load-Sharing Analyzer

Turn measured rectifier currents and AC/DC power into actionable load-sharing, redundancy and efficiency diagnostics.

Rectifier efficiencyLoad sharingModule countEnergy loss
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Engineering inputs

Set the engineering assumptions and design parameters.

Measured operating data

Enter measured currents separated by commas, spaces or line breaks. Use actual controller/module readings.

Thresholds are engineering screening values, not universal manufacturer limits. Verify the controller and rectifier specification before declaring a module defective.

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Engineering results

Review calculated capacity, limits and design checks.

Engineering results

Total DC current
Average module current
Max load-share deviation
Max-min spread
Normal plant loading
Selected redundancy
DC output
Measured efficiency
Conversion loss
After 1 module loss
After 2 module loss
Recommended online modules
ModuleCurrentRated loadvs meanStatus

What this analyzer diagnoses

The tool compares each online rectifier current with the plant mean, identifies large positive or negative sharing deviations, checks rated loading and tests whether the remaining modules can carry the present load after the selected redundancy loss.

Efficiency should use measured AC input

When measured AC input is supplied, the analyzer estimates DC output from bus voltage × total measured DC current, then calculates conversion efficiency and loss. Use values measured at the same operating point and avoid mixing controller estimates with unrelated meter readings.

Interpretation boundary

Unequal current sharing can be caused by module condition, controller logic, current-limit settings, voltage calibration, wiring resistance or transient load behavior. Treat this page as an engineering diagnostic screen, not as proof that a specific rectifier is faulty.

FAQ and engineering references

What does rectifier load sharing mean?

Parallel rectifier modules should share DC load closely enough that no single healthy module is persistently overloaded or materially under-contributing. The acceptable tolerance must ultimately follow the power-system manufacturer specification.

How is load-sharing deviation calculated?

The analyzer compares each measured module current with the mean current of all online modules. The maximum absolute percentage deviation and the max-to-min spread are both reported.

Can low current prove a rectifier module is faulty?

No. A low-output module is a diagnostic signal, not a fault verdict. Check module alarms, current-limit settings, bus-voltage calibration, connectors, controller behavior and manufacturer diagnostics.

How is DC plant efficiency calculated?

When measured AC input power is provided, efficiency is DC output power divided by measured AC input power. DC output power is estimated from bus voltage multiplied by the sum of measured module currents.

What does the recommended online-module count mean?

It is a planning estimate that considers present load, module rating, the selected redundancy reserve and the target per-module loading. Site policy and manufacturer efficiency curves remain authoritative.

References

ETSI EN 300 132-2 — power interface at telecommunications equipment inputs · IEC 61204 — low-voltage power supplies, DC output

Content reviewed: 2026-09-10

ENGINEERING WORKFLOW

Continue the engineering workflow

Current workflowTelecom Power & Energy Workflow

Move from site load through AC/DC distribution, rectifier sizing and operating diagnostics, battery backup, generator fuel, solar generation and facility efficiency as one energy engineering sequence.

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