110–125V DC Rectifier Module — Hot-Swap N+1 for Substation & Switchgear (25A–100A)
HMR-110V-25…100A
The Hannibal HMR-110V is a 110–125VDC modular rectifier and battery charger that supplies high-reliability DC power to substations and switchgear from 25A to 100A.
- Nominal DC output
- 110–125 VDC (field-adjustable)
- Battery protection
- LVD (low-voltage disconnect), output breakers
- Monitoring
- Earth leakage current sensor (+/–)
- Output current
- 25A to 100A (modular)
- Battery charging
- Temperature-compensated, intelligent BMS
- Redundancy
- Hot-swap, N+1 redundant
Overview
The Hannibal HMR-110V is a 110–125VDC modular rectifier and battery charger that supplies high-reliability DC power to substations and switchgear from 25A to 100A. Using high-frequency commutated (IGBT) switch-mode modules in a hot-swap N+1 redundant configuration, it energises the protection relays, SCADA, control and tripping circuits of electrical substations while a stand-by battery guarantees power backup for substations during a total AC outage.
The modular design delivers high power density and a long design life, and hot-swappable modules keep mean time to repair extremely low — a faulty module is replaced live without disturbing the 110V DC bus. Built-in intelligent battery management with temperature-compensated charging, a battery low-voltage disconnect (LVD), output breakers for loads and an earth leakage current sensor protect both the battery and the distribution network. A front-panel HMI, a time-stamped alarm & event logger and RS485 / TCP / SNMP / GSM communication provide complete supervision for utility-grade reliability.
Key features
- 01110–125VDC modular output, scalable from 25A to 100A for substation and switchgear DC.
- 02Powers protection relays, SCADA, control and tripping circuits with continuous DC supply.
- 03High-frequency commutated (IGBT) switch-mode modules with hot-swap N+1 redundancy.
- 04Battery low-voltage disconnect (LVD) and output breakers for loads as standard.
- 05Earth leakage current sensor (positive and negative) for DC network safety.
- 06Temperature-compensated charging and built-in intelligent battery management.
- 07Peak efficiency > 96% with active current sharing for redundant operation.
- 08Front-panel HMI plus RS485, TCP/IP, SNMP, GSM and dry-contact monitoring.
Technical specification
| Nominal DC output | 110–125 VDC (field-adjustable) |
|---|---|
| Output current | 25A to 100A (modular) |
| Peak efficiency | > 96% |
| Battery protection | LVD (low-voltage disconnect), output breakers |
|---|---|
| Battery charging | Temperature-compensated, intelligent BMS |
| Monitoring | Earth leakage current sensor (+/–) |
|---|---|
| Communication | RS485, TCP/IP, SNMP, GSM, dry contacts |
| Rectifier technology | High-frequency commutated (IGBT), switch-mode (SMR) |
|---|---|
| Redundancy | Hot-swap, N+1 redundant |
| Mounting | 19” rack / cabinet |
| Cooling | Forced ventilation, front-to-back airflow |
Applications
- Electrical substations and switchgear DC systems.
- Protection & control and SCADA power supplies.
- Power transmission and distribution networks.
- Utility and grid-automation auxiliary supplies.
- Backup DC supply for critical 110V substation loads.
Options, standards & platform
Battery compatibility
HMR Series modular rectifiers provide temperature-compensated charging and intelligent battery management for standby battery banks, with built-in LVD protection and battery test:
- Valve-regulated lead-acid (VRLA), AGM and Gel batteries.
- Vented lead-acid and other lead-acid chemistries.
- Compatible with leading battery brands including EnerSys and Exide.
- Battery low-voltage disconnect (LVD), battery test function and room temperature probe as standard.
Options & accessories
- Voltage drop diode unit and digital or analog voltage / current meters.
- Earth leakage current sensor (positive and negative) and door-open sensor.
- Internal cabinet lighting, anti-condensation heating resistance and redundant fans.
- Fusible surge suppression (AC/DC) and removal of input neutral on site.
- Cabinet colour to any RAL code, flexible cable entry (top / side / bottom / rear).
- Ingress protection up to IP66 for outdoor and harsh-environment installations.
- RS485, TCP, SNMP and GSM communication and an automatic battery test option.
Standards & compliance
- Electrical safety: EN / IEC 62368-1.
- EMC: ETSI EN 300 386 V2.1.1 and EN 61000-6-1 / -2 / -3 / -4.
- AC harmonics, flicker and fluctuations: EN 61000-3-2 / EN 61000-3-3.
- CE marked and RoHS compliant.