EX-proof Intirnsic Inverter
Product Overview:
LCX Power-GNB flame-proof & intrinsically-safe inverter power supply is special-purpose power conversion equipment for explosive hazardous environments. It complies with GB3836 series explosion-proof standards, adopting flame-proof enclosure plus intrinsically-safe dual-safety design. It converts DC input into pure sine-wave AC output. Built-in independent intrinsically-safe protection circuit with double-limit voltage-current protection, it can supply power for monitoring, communication and automatic instruments in flammable-gas hazardous zones. Full-digital DSP closed-loop inverter control, modular power unit. It supports mains-battery uninterrupted switching. The whole unit passes flame-proof, damp-heat and impact tests, featuring high safety, strong anti-vibration performance and high reliability for coal mine, petrochemical and other explosive-risk industrial sites.
Typical Applications：
· Underground coal-mine monitoring, communication, personnel-positioning and emergency-broadcast equipment power supply
· Petrochemical, oil-gas field explosive hazardous-area instrument & sensor power supply
· Tunnel, mine engineering explosion-proof automatic control terminal
· Hazardous-zone backup uninterrupted power-supply for safety monitoring system
· Metallurgy, chemical plant flammable-gas workshop on-site instrument power supply
· Explosion-proof off-grid energy-storage system for mining and petro-chemical sites
Technical Specifications：
1. Explosion-proof Structure & Topology Flame-proof heavy-duty enclosure, intrinsically-safe output circuit, explosion-proof mark Ex d[ib] I Mb. Adopt full-digital DSP sine-wave inversion technology; modular power unit, support parallel expansion.
2. Electrical Performance
· DC wide-range input, adapt to lithium-ion, lead-acid storage battery
· Pure sine-wave AC output, low waveform distortion THD ≤3%
· Output voltage precision ≤±1%FS, frequency precision ≤±0.1Hz
· Max conversion efficiency ≥93%
· Zero-time switching between mains and battery, uninterrupted power supply
3、Intrinsically-safe Double-protection Design Dual-limit voltage & current protection for intrinsically-safe loop; multiple-stage blocking against over-voltage, over-current and short-circuit. Effectively restrict energy of output circuit, avoid igniting flammable and explosive mixed gas under fault condition.
4、Complete Multi-level Protection Functions Input over-voltage / under-voltage, reverse-connection protection; output over-voltage, over-current, short-circuit, over-temperature, leakage-locking protection; battery over-charge / over-discharge protection. Fault latch off and fault-event record function.
5、HMI & Communication Interface Local explosion-proof display window for real-time viewing input/output voltage, current, battery status and alarm information. Standard RS485 interface, Modbus protocol, support remote monitoring and data uploading for unattended hazardous sites.
6、Environmental & Mechanical Adaptability High-strength flame-proof enclosure, anti-shock, anti-vibration, damp-heat resistant. Operating temperature:-20℃ ~ +55℃; suitable for underground, petrochemical harsh working conditions with dust and corrosive gas.
Technical Parameters and Selection
Technical Parameters and Selection
