| Brand | ROCKWILL |
| Model NO. | 1250kVA/20kV Electric Single Phase Oil Immersed Power Distribution Transformer |
| Rated voltage | 20kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 1250kVA |
| Series | D |
Product Overview
Rockwill's single-phase distribution transformers are engineered to deliver reliable power conversion for diverse applications. Combining robust construction with advanced electrical design, our transformers ensure stable voltage regulation and efficient energy distribution. Available in both pole-mounted and pad-mounted configurations, they are ideal for utility companies, commercial facilities, and residential communities.
Product Features
Advanced Design Options
Pole-mounted transformers featuring compact dimensions for easy installation on utility poles
Pad-mounted transformers with tamper-resistant enclosures for ground-level applications
Flexible configurations to meet specific project requirements
Superior Core Technology
High-efficiency CRGO wound core design for optimal magnetic performance
Optional amorphous metal core for ultra-low no-load losses
Precision-engineered coils for maximum conductivity and thermal stability
Enhanced Structural Integrity
Multi-layer insulation system for improved dielectric strength
Reinforced coil bracing withstands short-circuit forces
Corrosion-resistant steel tanks with durable powder coating
Optimized lifting points and mounting hardware for safe installation
Product Parameters
Applications
Urban and suburban residential power distribution
Commercial complexes and shopping centers
Industrial parks and manufacturing facilities
Rural electrification and agricultural operations
Renewable energy integration systems
Municipal infrastructure projects
Competitive Advantages
Energy Efficient: Meets international efficiency standards
Low Maintenance: Sealed tank design with minimal upkeep requirements
Environmentally Friendly: Low-noise operation and eco-conscious materials
Custom Solutions: Tailored designs for special applications
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What are the principles of forced re-energization of transmission lines?Principles of Forced Re-energization of Transmission LinesRegulations for Forced Re-energization of Transmission Lines Correctly select the forced re-energization end of the line. If necessary, change the connection configuration before forced re-energization, taking into account the reduction of short-circuit capacity and its impact on grid stability. There must be a transformer with its neutral point directly grounded on the busbar at the forced re-energization end. Pay attention to the impactEdwiin09/04/2025 -
Analysis of Accident Handling in Transmission LinesAnalysis of Transmission Line Fault HandlingAs a fundamental component of the power grid, transmission lines are widely distributed and numerous, often exposed to diverse geographical and climatic conditions, making them highly susceptible to faults. Common causes include overvoltage, pollution flashover, insulation damage, tree encroachment, and external damage. Line tripping is one of the most frequent faults in power plant and substation operations, with fault types including single-phase-to-Leon09/04/2025 -
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Constant testing of high-voltage cable lines1. Definition of High-Voltage Cable Line Constant TestingHigh-voltage cable line constant testing refers to the systematic measurement, using specialized instruments, of electrical parameters such as resistance, inductance, capacitance, and conductance before a cable line is commissioned or after major maintenance. The aim is to obtain fundamental data characterizing the electromagnetic properties of the cable, serving as a critical testing phase that provides accurate parameter support for poweOliver Watts09/03/2025
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Intelligent Operation Solution for 12kV Vacuum Circuit Breakers: Integrating Real-time Monitoring & Lifetime OptimizationⅠ. Equipment Operation & MaintenanceIntelligent Monitoring System IntegrationMulti-parameter Real-time Monitoring: Embedded sensors (temperature, displacement, Hall effect current sensors) track contact temperature rise, mechanical characteristics (opening/closing speed, overtravel), coil current, and partial discharge signals. Data undergoes preprocessing via edge computing prior to cloud upload.Lifetime Prediction Model: Dynamically evaluates remaining lifespan using electrical wear dataRockwill06/10/2025 -
SF6 Circuit Breaker Solutions for Outdoor Installation (Anti-Pollution & Seismic Resistance)I.Core Challenges in Outdoor InstallationIn high-voltage transmission and distribution systems, SF6 circuit breakers are exposed to complex outdoor environments for extended periods, facing the following critical issues:Pollution & Insulation DegradationDust, salt fog, and industrial pollutants in outdoor environments easily adhere to equipment surfaces. In coastal or industrial areas, pollution levels may reach Class IV, resulting in insufficient creepage distance and triggering flashoRockwill05/12/2025
