110V DC Three-Phase Battery Charger for Substation & Switchgear (10A–2500A)
Overview
The Hannibal HR-3P-110V is a three-phase 110VDC battery charger and rectifier rated from 10A to 2500A, engineered to provide high-reliability power supply and battery charging for substations and switchgear. It feeds the protection relays, SCADA, control and tripping circuits of electrical substations and, combined with a stand-by battery, guarantees power backup for substations, SCADA and switchgear even during a total AC outage.
Three-phase input and 6-pulse (B6C) or 12-pulse (B12C) thyristor-controlled topologies with DSP control deliver high power with low THDi, while a galvanic isolation transformer holds voltage regulation and output ripple below 1%. Earth leakage monitoring (OPS-02), DC earth fault detection and transducers with 0–10V / 4–20mA outputs (OPS-11) provide complete supervision, and dual DC UPS / dual battery charger arrangements with DC load sharing deliver the redundancy that transmission and distribution networks demand.
Key features
- Three-phase 110VDC output, 10A to 2500A, for substation and switchgear DC systems.
- Supplies protection relays, SCADA, control and tripping circuits with constant-current operation under load.
- 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%.
- Earth leakage monitoring (OPS-02) and DC earth fault detection for network protection.
- Transducers 0–10V / 4–20mA (OPS-11) and dry contact alarm relays for full supervision.
- Dual DC UPS / dual battery charger with DC load sharing for utility-grade redundancy.
- RS232 / RS485 Modbus RTU and Modbus / TCP-IP communication.
Technical specifications
| Input voltage (AC) | 3 x 400V (380 / 415V) |
|---|---|
| Nominal DC output | 110 VDC |
| DC voltage range | 88–160 VDC |
| Output current | 10A to 2500A |
| Rectifier topology | Thyristor-controlled, B6C / B12C (6 & 12-pulse) |
| Charge modes | Float, Equalize, Boost (auto & manual) |
| Voltage regulation | < 1% |
| Output ripple | < 1% RMS |
| Monitoring | Earth leakage (OPS-02), DC earth fault, transducers (OPS-11) |
| Redundancy | Dual DC UPS / dual charger, DC load sharing |
| Communication | RS232 / RS485, Modbus RTU, Modbus/TCP-IP |
Applications
- High-voltage and distribution substations.
- Switchgear and protection & control systems.
- Power transmission and distribution networks.
- SCADA and grid-automation systems.
- Power generation and water treatment plants.