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HR Series · Three-phase

125V DC Three-Phase Battery Charger for Substation & Switchgear (10A–2500A)

HR-3P-125V-10…2500A

The Hannibal HR-3P-125V is a three-phase 125VDC battery charger and rectifier from 10A to 2500A, delivering high-reliability DC power and battery charging for substations, switchgear and defence-sector installations.

Request a quote →Technical specification
Industrial Rectifier
Nominal DC output
125 VDC
Input voltage (AC)
3 x 400V (380 / 415V)
Charge modes
Float, Equalize, Boost (auto & manual)
Control
Programmable parameters, calibration functions
DC voltage range
88–160 VDC
Output current
10A to 2500A

Overview

The Hannibal HR-3P-125V is a three-phase 125VDC battery charger and rectifier from 10A to 2500A, delivering high-reliability DC power and battery charging for substations, switchgear and defence-sector installations. It keeps the protection, control and signalling circuits of electrical substations energised and, with a stand-by battery, provides uninterrupted power backup for SCADA, switchgear and critical control loads.

Built on 6-pulse (B6C) and 12-pulse (B12C) thyristor-controlled topologies with fast DSP control, the HR-3P-125V achieves low input harmonics, voltage regulation under 1% and output ripple under 1% through a galvanic isolation transformer and ripple suppression. Programmable operation parameters, calibration functions for voltage and current, input power measurement (OPS-09) and over-temperature protection give engineers precise control and dependable operation. An LCD display with keypad and automatic startup / restart after fault keep maintenance and service simple across long deployment lifetimes.

Key features

  • Three-phase 125VDC output, 10A to 2500A, for substation, switchgear and defence DC systems.
  • 6-pulse (B6C) and 12-pulse (B12C) thyristor-controlled topologies with DSP control and low THDi.
  • Galvanic isolation transformer, voltage regulation < 1% and output ripple < 1%.
  • Programmable operation parameters and calibration functions for voltage and current.
  • Input power measurement (OPS-09) and energy monitoring via the front panel.
  • Over-temperature, short-circuit protection and current limiting for safe operation.
  • LCD display with keypad navigation, alarm logging and automatic startup / restart after fault.
  • Float, equalize and boost charge modes with RS232 / RS485 Modbus RTU communication.

Technical specification

Input specifications for HR-3P-125V-10…2500A
Input voltage (AC)3 x 400V (380 / 415V)

Applications

  • Substation and switchgear DC supplies.
  • Defence and infrastructure projects.
  • Power transmission and distribution.
  • Power generation auxiliary systems.
  • SCADA and protection & control redundancy.

Options, standards & platform

Battery compatibility

HR Series chargers are fully compatible with sealed and vented batteries across all major chemistries, with intelligent battery management and temperature compensation to extend service life:

  1. Maintenance-free and vented: OPzS, OPzV, VRLA (valve-regulated), Gel and AGM lead-acid.
  2. Nickel-Cadmium (Ni-Cd) — vented and recombination types.
  3. Lithium-Ion (Li-Ion), Calcium-Ion and Sodium-Ion advanced chemistries.
  4. Battery monitoring system (Hannibal BMS), DC earth fault detection and battery room temperature sensor options.
  5. Compatible with leading battery brands including EnerSys and Exide.
Options & accessories
  1. Alarm & communication interface
  2. Earth leakage monitoring
  3. Gauges for analog measurements.
  4. Output breaker / load dropper module
  5. Battery temperature compensation
  6. Input power measurement.
  7. Transducers (0–10V, 4–20mA)
  8. Active parallel current sharing
  9. Fast-acting semiconductor fuses
  10. Fan failure monitoring.
  11. 12-pulse operation option, IGBT rectifier, harmonic filter, DC shock / DC filter and one-to-four-step dropper diode voltage regulation.
  12. Outdoor equipment and ingress protection: IP42, IP54, IP55 and IP65, with altitude operation up to 2000m and natural cooling on request.
  13. H2S gas compensation for geothermal power plants and the petrochemical industry; anti-seismic design for high-vibration sites.
Standards & compliance
  1. IEC 60146-1-1 / IEC/NF EN 60146-1-1 — Semiconductor converters (basic requirements).
  2. IEC 61204-1, IEC 62040-2 (EMC), IEC 60335 — power supply and safety standards.
  3. ISO 9001, ISO 14001, ISO 27001 management system certifications.
  4. CE marked, compliant with EMC and Low Voltage directives.
  5. Total harmonic distortion (THDi) controlled via 6-pulse, 12-pulse and IGBT topologies; harmonic filter available.
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