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800kVA 11kV Mining Distribution Transformer for Underground Mining Substation
Designed specifically for gold and copper mining operations, this transformer prioritizes safety, reliability, durability, and low maintenance costs. The fully sealed design, shock-resistant structure, premium silicon steel core, high-grade enamel-wrapped conductors, and excellent thermal performance significantly reduce failure rates in demanding mining environments.
We have 15+ years of transformer manufacturing experience, ISO-certified facilities, advanced laboratories, and full testing capability, providing strong technical credibility.
Product Specifications
Model
KBSG
Transformer Type
Dry type
Voltage
11kV/0.4KV
Frequency
50Hz
Number of Phases
3 phases
Coil Material
Copper/Aluminum
Insulation Class
H/C
Connection Method
Yyo/Dyn11
Cooling Method
AN, GNAN
Protection Class
IP54/IP65/IP66/IP67
Explosion-Proof Type
Exd
Rated Capacity
800KVA
No-load Loss (KW)
1520
Load Loss (KW)
6960
No-load Current (%)
0.9
Impedance Voltage (%)
6
Outline Dimension
2910*1330*1430
Weight (KG)
3160
Protection & Control System - Intelligent Early Warning
Critical Issue: 1 Hour of Underground Shutdown = Hundreds of Thousands in Losses! When underground power is interrupted, mining equipment halts, ventilation fails, and drainage pumps stop. This not only causes massive economic loss but can trigger safety incidents like gas accumulation and flooding.
The HENTG POWER KBSG Series features a "Comprehensive Protection + Intelligent Monitoring" system that blocks faults in real-time and warns of hidden dangers in advance.
Overload Protection: Automatically limits current when load exceeds 1.2x rated value; triggers shutdown at 1.5x to protect core components
Short Circuit Protection: Features instantaneous trip device - cuts power within 0.1 seconds of line short circuit
Over-temperature Protection: Built-in PT100 sensors monitor coil temperature with warnings at >135℃ and automatic shutdown at >150℃
Leakage Lockout Protection: Immediately locks power supply upon detecting line leakage
Voltage Protection: Adjusts output or shuts down if voltage fluctuates >±10%
2. Intelligent Monitoring: Remote Status Mastery
Real-time Data Collection: Uploads voltage, current, temperature, and load rate data via RS485 interface
Fault Warning Push: Detects abnormalities and pushes alerts via SMS/APP/Central Control 24-48 hours in advance
Historical Data Tracing: Automatically stores operating data for more than 1 year for retrospective analysis
3. Stability & Anti-Interference
EMC design resists electromagnetic interference from heavy mining equipment and high-voltage switches. Rugged control module housed in IP65 waterproof/dustproof shell.
4. Maintenance Efficiency: Fast Fault Location
Visual Diagnostics: High-definition display shows fault types and specific locations
Remote Reset: Allows remote resetting of minor faults via central control system
Production and Transportation Process
About HENTG POWER
Who are we?
HENTG POWER is a professional designer, manufacturer and installer of power system solutions worldwide, founded in 2011, occupying 100,000 square meters and specializing in reliable, high-performance solutions for global power systems.
How can we guarantee quality?
We provide pre-production samples, conduct final inspections, and offer QC & test reports. Our factory manufactures oil type and dry type distribution transformers up to 500KV 480MVA power transformers, GIS, switchgear, and substations, compliant with ANSI/IEEE/DOE2016/CSA/IEC60076 standards with a 2+ year guarantee.
Why choose us?
Professional drawing and technical teams that confirm all drawing contents within 7 days
Team of 30+ senior engineers provides 24-hour online service with responses within 30 minutes
Our Services
We accept OEM and negotiated business payment terms.
