ROCKWILL
ROCKWILL
Wenzhou Rockwill Electric Co., Ltd.
Low-Noise, Energy-Efficient Dry-Type Transformer Solutions for Premium Commercial Buildings
Ⅰ. Core Pain Points​Urban CBD supertall buildings face two critical challenges:• ​Noise Control Difficulty:​​ Traditional transformers' no-load noise (>55dB) disrupts premium office environments, violating green building acoustic standards.• ​Premium Space Constraints:​​ Electrical room costs exceed ¥100,000 per square meter; large traditional transformers encroach on core functional areas.​Application Scenarios:​​ 500m+ supertall landmarks, LEED Gold-certified office towers, in
ROCKWILL
07/04/2025
Dedicated Anti-vibration Dry-type Traction Transformer Solution for Rail Transi
Scenario Characteristics and Core Challenges​In traction power supply substations for subways and high-speed railways, transformers are continuously subjected to structural vibrations (8-200Hz) originating from rolling stock and tracks. They simultaneously face harsh conditions including space constraints, fire safety requirements (EN 45545), and electromagnetic interference (EMI). Conventional transformers are prone to winding loosening and core displacement due to prolonged vibration, leading
ROCKWILL
07/04/2025
Wind/Solar PV Dedicated Dry-Type Transformer Solution
Precisely Solving Pain Points: Tackling Harsh Conditions of Renewable Energy Power Plants​The inherent intermittency and volatility of wind and PV power plants translate into critical challenges for the grid:• ​Harmonic Pollution: Inverters and converters generate abundant high-order harmonics, accelerating equipment insulation aging and triggering overheating risks.• ​Voltage Fluctuations: Extreme variations in sunlight/wind speed cause frequent voltage swings (up to ±10%) at t
ROCKWILL
07/04/2025
Technical Solution: RW Series Vacuum Pressure Impregnation (VPI) Dry-Type Transformers
Technical Solution: RW Series Vacuum Pressure Impregnation (VPI) Dry-Type Transformers​​I. Core Technological Innovations​​Defect-Free Insulation System​Utilizes Vacuum Pressure Impregnation (VPI) process to cast high-density epoxy resin, achieving void-free solidified insulation.Partial discharge levels stably controlled at ​​<10 pC​ (IEC 60076-11 standard).Insulation thermal class reaches ​Class H (180°C)​, with insulation performance degradation rate ​​≤5%​​ throughout the lifespan.
ROCKWILL
07/04/2025
Digital Twin-Driven Smart Manufacturing: Next-Gen Intelligent Solutions for Dry-Type Transformers
Digital Twin-Driven Smart Manufacturing: Next-Gen Intelligent Solutions for Dry-Type Transformers​Amidst the dual waves of energy transition and smart manufacturing, Dry-Type Transformers are rapidly evolving towards digitization and intelligence. Our proposed "Digital Twin Dry-Transformer Ecosystem" integrates cutting-edge technologies to establish an intelligent, closed-loop management system covering the entire equipment lifecycle, propelling the industry into a new era of future smart manufa
ROCKWILL
07/04/2025
Dry-Type Transformer Solution: Dedicated System for Demanding Industrial Environments (Anti-Corrosion / High Overload Dry-Type System)
Dry-Type Transformer Solution: Dedicated System for Demanding Industrial Environments (Anti-Corrosion / High Overload Dry-Type System)​​​1. Challenges Addressed​​Industries:​​ Chemical, Metallurgy, Shipbuilding, Coastal Energy Facilities, etc.​Environmental Threats:​​​Extreme High Humidity:​​ Constant or long-term ambient relative humidity > 90%.​Corrosive Attack:​​ Presence of highly corrosive media including salt spray, acidic/alkaline gases (pH range 2-12), chemical vapors.​Operational Str
ROCKWILL
07/04/2025
Voltage Transformer Solution: Transient Response Monitoring for Renewable Energy Stations
Ⅰ. Background and Pain Points​Renewable energy stations (photovoltaic/wind power) face complex transient processes due to the large-scale application of power electronic devices, including: inverter shutdown surges, broadband resonance, and DC component interference. Conventional PTs/CTs are limited by bandwidth, response speed, and anti-saturation capability, making them unable to accurately capture transient voltage waveforms. This leads to protection misoperations, difficulty in fault locatio
ROCKWILL
07/07/2025
UHV Grid Metering Solution: 1000kV VT System Based on Ultra-High Insulation Stability
UHV Grid Metering Solution: 1000kV VT System Based on Ultra-High Insulation Stability​In Ultra-High Voltage (UHV) grids, the high voltage level (e.g., 1000kV) imposes extremely stringent requirements on the insulation performance and measurement accuracy of metering devices. Conventional voltage transformers (VTs) are prone to insulation breakdown, excessive partial discharge, and thermal drift effects under ultra-high voltages, leading to metering failure or even equipment damage. This solution
ROCKWILL
07/07/2025
Smart Substation Voltage Transformer (VT) Digital Interface Solution
​Smart Substation Digital Interface Scheme​​Technical Focus:​​ Deep integration of the IEC 61850 protocolThis solution deeply integrates the IEC 61850 standard to build a future-oriented digital transformer system, achieving device interoperability, efficient data sharing, and intelligent system operation and maintenance.​Key Innovations​​Composite Sensing Technology​​Rogowski Coil + Capacitive Voltage Divider Composite Sensing:​​ Combines the Rogowski coil's wide frequency response (suitable fo
ROCKWILL
07/07/2025
Voltage Transformer Solution: Dedicated Solution for Compact Medium Voltage Switchgear
Core Positioning:​​ Provides a high-performance, ultra-compact voltage measurement solution for medium voltage switchgear (e.g., KYN28) with severely limited space, achieving installation flexibility unattainable by traditional designs.​Technical Approach: Ultra-Small Space Adaptation​Traditional Voltage Transformers (VTs) are bulky and difficult to fit into the instrument compartments of modern compact switchgear like KYN28. This solution achieves revolutionary miniaturization through the follo
ROCKWILL
07/07/2025
High-Precision Laboratory Standard Voltage Transformer Solution
Ⅰ. ​Technical Focus: Traceability to Metrological Standards​This solution centers on the national electric energy metrology reference system, employing an independently controlled traceability chain to ensure voltage measurement results are directly traceable to the International System of Units (SI). By eliminating cascading errors inherent in traditional measurement devices, it delivers reference-grade voltage measurement capabilities for advanced laboratories.​Ⅱ. Core Technical Innovations​Du
ROCKWILL
07/07/2025
Specialized Voltage Transformer Solution for High-Speed Railway AT Power Supply System: Focused on Strong EMI Immunity
Specialized Voltage Transformer Solution for High-Speed Railway AT Power Supply System: Focused on Strong EMI Immunity​The electromagnetic environment of the high-speed railway AT (Auto-Transformer) power supply system is extremely complex. Strong electromagnetic interference (EMI) directly affects the measurement accuracy of voltage transformers and system reliability. This solution specifically targets this core challenge by developing a dedicated voltage transformer that meets the 27.5kV sing
ROCKWILL
07/07/2025
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