| Brand | ROCKWILL |
| Model NO. | 33KV Electric Pad Mounted Transformer |
| Rated voltage | 33kV |
| Phases | Three-phase |
| Series | ZGS |
Product Description
Rockwill’s pad-mounted transformer is a fully enclosed, ground-level solution designed for stepping down high-voltage electricity to usable levels in residential, commercial, and industrial applications. Unlike pole-mounted units, our transformers are housed in tamper-proof, weather-resistant metal enclosures mounted on concrete pads, ensuring safety, durability, and space efficiency.
Key Features:
Enhanced Safety – Fully insulated and sealed construction for operator and public protection.
Space-Saving Design – Compact and aesthetically suited for urban environments.
Flexible Installation – Adaptable to various site conditions without compromising performance.
Quiet Operation – Advanced core technology reduces noise levels for minimal disturbance.
Main Characteristics
Full Insulation & Sealed Structure – Ensures complete safety for personnel and equipment.
Dual Fuse Protection – Features a plug-in Unika fuse (temperature & current-sensitive) and a backup current-limiting fuse for cost-effective operation.
Insulated HV Cable Connectors – Safe, reliable, and easy to operate.
Compatible with Ring Main & Terminal Systems – Enables flexible power supply configurations for improved reliability.
Advanced Core Design – Three-phase three-limb or five-limb construction with step-lap technology for reduced noise, lower losses, and superior short-circuit resistance.
Vacuum Drying & Oil-Filling Technology – Ensures high-quality insulation and extends transformer lifespan.
Anti-Corrosion Enclosure – Specialized coating with anti-condensation, anti-salt fog, and anti-mildew properties, ideal for harsh environments.
Advantages
Compact & Aesthetic – Ideal for urban and high-density areas.
Tamper-Proof & Maintenance-Free – Secure design with long-term reliability.
Easy Installation & Operation – Ready-to-deploy with minimal site adjustments.
Applications
Urban Power Networks – Residential complexes, high-rise buildings.
Industrial Zones – Factories, airports, train stations.
Public Infrastructure – Schools, hospitals, commercial centers.
Service Environment
Temperature Range: -25°C to +40°C
Altitude: Up to 1000m
Seismic Resistance: ≤3 m/s² (horizontal), ≤1.5 m/s² (vertical)
Installation Conditions: Non-explosive, well-ventilated areas free from excessive pollution, vibration, or corrosive agents.
Basic Info
-
Strange Devices on Transmission Lines: 5 Little-Known Practical Functions（1）1 Aviation Warning SpheresAviation warning spheres, also known as reflective safety spheres, are used on overhead transmission lines near airports, especially on extra-high-voltage (above 220kV) lines and river-crossing transmission lines. Highly visible aviation marker spheres (aviation warning spheres) must be installed along the lines to provide warning signals.The aviation marker sphere (aviation warning sphere) has a diameter of ф=600mm. The sphere can be manufactured in various bright coloLeon09/04/2025 -
Transmission LineIn transmission lines, a "π" connection involves breaking the original line from Substation A to Substation B and inserting Substation C, forming a "π" configuration. After the "π" connection, the original single line is divided into two independent transmission lines. Following the "π" connection, Substations B and C may both be powered by Substation A (in this case, Substation C receives power via a feeder from Substation B's busbar, or possibly from another voltage point within Substation B);Encyclopedia09/04/2025 -
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 -
The difference between transmission and distribution linesTransmission lines and distribution lines are both used to carry electrical power from one location to another. However, they differ significantly in key aspects such as primary function, voltage levels, phase configuration, and conductor placement. These differences are essential for understanding their distinct roles in the power system.The Difference Between Transmission and Distribution Line is given below in the tabulated form.Electricity generation is a critical component of the power systEdwiin09/04/2025 -
Ensuring Reliability: A Deep Dive into Transformer MaintenanceIntroductionElectric transformers are the backbone of modern power distribution systems, silently enabling the reliable delivery of electricity to homes, businesses, and industries. As these critical assets age and the demand for uninterrupted power grows, the importance of diligent transformer maintenance has never been greater. This essay explores the essential role of transformer maintenance, highlighting the value of proactive care, the impact of advanced diagnostic technologies, and the traVziman09/03/2025
-
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 -
12kV Indoor Vacuum Circuit Breaker Southeast Asia Solution: Anti-Corrosion Compact Design12kV Indoor Vacuum Circuit Breaker Southeast Asia Solution: Anti-Corrosion Compact DesignⅠ. Executive SummarySoutheast Asia faces rapidly growing electricity demand alongside environmental challenges including high temperatures, humidity, salt spray corrosion, and grid instability. This solution recommends Solid Insulated Pole-Mounted Vacuum Circuit Breakers (VCB) featuring high reliability, compact design, and smart monitoring. Tailored for tropical climates and industrial scenarios, itRockwill06/10/2025
