Thyristor Battery Chargers – Uninterrupted Power, Unmatched Reliability
At Chhabi Electricals, we recognize that your operations demand unwavering power continuity. That’s why our DC UPS solutions are engineered to deliver reliability, precision, and intelligent control—ensuring your business never skips a beat. Whether you need rugged simplicity or smart, adaptive power management, we have the right solution tailored to your needs.
DSP/microcontroller closed-loop control ensures ±1% regulation accuracy.
Monitors 25+ parameters (ripple, harmonics, battery impedance).
7-inch LCD/touchscreen for live data, alarms, and mode visualization.
Auto-switches between Float/Boost/Equalize with temperature compensation.
Supports Modbus RS-485, RS-232, TCP/IP, Profibus; remote read/write facility
| Specification | Details |
|---|---|
| Input AC Supply | 415 V AC ±10%, 3 Phase, 3/4 Wire, 50Hz or 60Hz ±5% or 230 V AC ±10% |
| DC Output Voltages | 24V, 48V, 110V, 125V, 220V, 360V |
| DC Output Current Range | 5A – 3000A (other ratings on request) |
| Applicable Standards | IS 4540, IEC 146 (as applicable) |
| Quality Standards | ISO 9001, ISO 14001, ISO 45001, ZED (Zero Defects Zero Effects) |
| Supported Battery Types | Lead Acid, VRLA, Nickel Cadmium, Li-Ion |
| Charging Characteristics | Constant Current – Constant Voltage (CC-CV) |
| Cell Configuration | 24V, 48V, 110V, 125V, 220V, 360V |
| DC Output Voltage – Float Mode |
LA: 2.15–2.20 VPC VRLA: 2.15–2.25 VPC Ni-Cd: 1.40–1.42 VPC |
| DC Output Voltage – Boost Mode |
LA: 2.65–2.75 VPC VRLA: 2.30–2.35 VPC Ni-Cd: 1.65–1.70 VPC |
| Voltage Regulation | ±1% (0–100% load, float mode) |
| Current Variation | Adjustable 10%–100% (boost mode) |
| Current Limit | 105% of rated current (float mode) |
| DC Current Regulation | ±2% (boost mode) |
| Magnetics | Isolation Transformer / Filter Choke |
| Insulation Class | Class F, Temperature rise 90°C (for magnetics) |
| High Voltage Withstand | 2.5 kV for 1 minute |
| Rectifier Type | Fully Controlled Bridge (6 / 12 / 24 Pulse Thyristor) |
| Output Ripple | ≤1% RMS / 2% RMS / 3% RMS or Peak-to-Peak (without battery connected) |
| Efficiency |
≥80% at full load (110V, 220V, 360V models) ≥70% at full load (24V, 48V models) |
| Category | Details |
|---|---|
| Output | DC Voltmeter, DC Ammeter |
| Battery | DC Voltmeter, DC Ammeter |
| Input | AC Voltmeter, AC Ammeter (optional) |
| Display | Through LCD / Touchscreen |
| Protection Feature | Details |
|---|---|
| Thyristor Protection Fuse | Provides safety for thyristors against faults |
| Soft Start | Prevents inrush currents during startup |
| Electronic Current Limit | Restricts current to safe operating levels |
| Phase Protection | Phase sequence reversal & phase failure protection |
| Category | Details |
|---|---|
| Alarms / Annunciations |
|
| Status Indications | Relay Contacts: Potential free (optional) |
| Communication | RS485 (optional) |
| Specification | Details |
|---|---|
| Construction | Folded sheet MS, powder coated (Paint Shade – Customizable) |
| Sheet Thickness | Frame (Load bearing members) – 2 mm, Panels (Non-load bearing members) – 1.6 mm |
| Cable Entry | Bottom (top on request) |
| Panel Access | Front & rear; Only front on request |
| Terminal Arrangement | Back side |
| Enclosure Protection | IP20 / IP31 / IP42 (others i.e. IP5x on request) |
| Cooling | Natural air cooling / Forced air cooling |
| Noise Level | 70 dBA (natural) / 80 dBA (forced cooling) |
| Installation | Indoor, floor mounting, self-standing |
| Condition | Details |
|---|---|
| Temperature | 0°C to +50°C |
| Humidity | ≤95% RH (non-condensing) |
| Altitude | ≤1000m above MSL |
Reliable DC power for control, protection, and backup across thermal, nuclear, hydro, renewable plants, and utility operations.
