Power Packs
MOBY Power Packs are specialized auxiliary DC power storage units designed to provide reliable tripping and closing energy to Vacuum Circuit Breakers (VCB) and Load Break Switches (LBS) during severe electrical faults and complete substation blackout conditions. By storing capacitive electrostatic energy or utilizing maintenance-free battery backup, our Power Packs guarantee breaker trip operation even when AC auxiliary supply is completely lost.
Comprehensive Technical Specifications
Detailed parameter ratings, insulation limits, standards compliance, and fabrication tolerances engineered for Power Packs.
| Technical Parameter | Engineering Specification | Compliance Standard / Condition |
|---|---|---|
| 🔷 Input & Power Characteristics | ||
| Input AC Supply Voltage | 110V AC or 230V AC single phase ± 20% | Standard Station Aux |
| Input Supply Frequency | 50 Hz ± 5% | Grid Standard |
| Input Power Consumption | Under 50 VA during float charge / 150 VA peak recharge | Energy Efficient |
| Output DC Voltage | 24V DC, 30V DC, 110V DC, or 220V DC (Factory Preset) | Regulated DC |
| Voltage Regulation | ± 2% under steady state charging conditions | Precision Controlled |
| 🔷 Energy Storage & Tripping Impulse | ||
| Energy Storage Medium | Heavy-Duty Long-Life Electrolytic / Polypropylene Capacitors | Zero Maintenance |
| Stored Energy Output | 100 Joules to 500+ Joules (Higher ratings on request) | Instantaneous Impulse |
| Impulse Delivery Capacity | Guaranteed 2 to 3 successive breaker tripping impulses | Trips Under Dead Blackout |
| Hold-Up Time Duration | Delivers full tripping impulse even after 2 to 5 minutes of AC mains loss | Blackout Security |
| Capacitor Recharging Time | Under 10 to 15 seconds to reach 95% full energy state upon power return | Rapid Ready |
| 🔷 Supervision & Alarm Contacts | ||
| Potential-Free Contacts | 2 Sets of NO/NC alarm contacts for 'AC Mains Fail' and 'DC Low Voltage Alert' | SCADA Remote Annunciation |
| Contact Current Rating | 5A at 230V AC / 2A at 110V DC resistive | Standard Relay Duty |
| Front Panel Indicators | LED status lights: Mains Healthy, Charging Active, Ready to Trip, Trip Impulse Delivered | High-Visibility LEDs |
| Integrated Test Button | Front-panel pushbutton to test capacitor health without tripping the live breaker | Routine Audit Friendly |
| Analog / Digital Voltmeter | Direct voltmeter display indicating precise stored DC terminal voltage | Continuous Monitoring |
| 🔷 Mechanical & Enclosure Data | ||
| Enclosure Standard | Compact Wall-Mounting or Panel Door-Mounting CRCA Sheet Steel Casing | IP42 / IP52 |
| Paint Finish | Epoxy-polyester powder coated RAL 7032 pebble grey | Anti-Corrosive |
| Dimensions & Weight | Ultra-compact profile fitting inside standard VCB cubicle auxiliary compartments | Space Saving |
Key Engineering & Operational Features
Why electrical consultants, industrial plants, and utility engineers specify MOBY Power Packs.
Guaranteed Breaker Trip During Blackout
When a catastrophic transformer or busbar fault collapses the substation AC auxiliary supply, the Power Pack instantly delivers high-energy DC tripping current to clear the fault safely.
Eliminates Expensive Central Battery Rooms
Provides dependable DC trip power for standalone 11kV/33kV breakers without the massive capital expenditure, acid fumes, water top-up, and space of large 110V lead-acid battery banks.
Extended Blackout Hold-Up Time
Maintains ample electrostatic charge to trip the circuit breaker even after 5 minutes of total mains blackout, giving protection relays ample time to execute delayed backup trips.
Solid-State Capacitor Reliability
Unlike chemical batteries that degrade rapidly in hot substation cubicles, heavy-duty capacitor banks boast a 10+ year maintenance-free operational life.
Front-Faced Health Test Button
Operators can safely verify the tripping readiness of the internal capacitor reservoir at any time without disturbing the operational status of the live circuit breaker.
Remote SCADA Supervision
Equipped with potential-free relay contacts that trigger alarms in central control rooms whenever auxiliary AC mains power fails or stored DC voltage drops below safe limits.
Certified Quality & Factory Testing Standards
Every Power Packs is manufactured under strict ISO 9001:2008 quality control protocols and subjected to comprehensive routine testing at our Kolkata facility before dispatch.
Target Industrial Sectors & Deployment Scenarios
Engineered and tested for severe continuous operational duty across diverse sectors:
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Frequently Asked Questions
Authoritative engineering answers regarding voltage ratings, CPRI testing, custom SLD fabrication, and warranty for Power Packs.
What are the technical voltage and breaking ratings for MOBY Power Packs? +
Primary Parameter Ratings: MOBY Power Packs is engineered for rated voltage 110V / 230V AC ± 20%, 50 Hz and rated normal current 24V / 30V / 110V / 220V DC. It is built to withstand prospective short-circuit breaking currents up to 40 kA for 3 seconds, fully adhering to national and international power engineering guidelines.
Is MOBY Power Packs CPRI tested and certified? +
Certification & Type Testing: Yes, MOBY Power Packs is CPRI Tested & Industrial Grade. All switchgears undergo comprehensive type-testing at the Central Power Research Institute (CPRI) and are routine tested (high-voltage dielectric withstand, contact resistance, and operational timing) at our ISO 9001:2008 certified Kolkata manufacturing facility prior to customer dispatch.
Can this equipment be customized according to our single-line diagram (SLD)? +
Custom Engineering Capabilities: Yes, Moby Electrotech specializes in custom-engineered electrical switchgear systems. Our Kolkata engineering team customizes incoming/outgoing feeder arrangements, CT/PT ratios, numerical protection relays, busbar ratings, enclosure dimensions, and ingress protection (IP42 to IP55) to match your exact site layout and SLD.
What is the standard warranty and quotation timeline for Power Packs? +
Commercial Terms & Warranty: All MOBY equipment carries an engineering equipment warranty of 12 months from commissioning or 18 months from delivery. Technical commercial quotations are typically provided within 24 to 48 hours following single-line diagram (SLD) review.
Request Technical Quote for Power Packs
Our senior electrical engineering team will review your single-line diagram (SLD), system voltage, and breaking requirements to provide a competitive quotation within 24 hours.