Explore Wetown’s industry-leading power distribution solutions, engineered for maximum reliability, safety, and efficiency in critical infrastructure.
High Voltage Busbar Systems
Isolated Phase Bus (IPB)
Application: Main generator loop (Generator to Transformer connection) in power plants (Thermal, Nuclear, Hydro, Pumped Storage).
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 10kV – 36kV |
| Rated Current | 3,000A – 30,000A+ |
| Short-time Withstand | Up to 300kA (3s) |
| Peak Withstand | Up to 750kA |
| Enclosure Material | Aluminum Alloy |
| Cooling Method | Natural / Forced Air |
- Key Features:
- Absolute Isolation: Each phase housed in a separate, grounded aluminum enclosure.
- 99.9% Shielding: Continuous enclosure design eliminates external magnetic flux, preventing steel structure heating.
- Safety: Eliminates phase-to-phase faults; high short-circuit withstand capability.
- Structure: Large span support capability, minimizing civil engineering costs.
Auxiliary Equipment for IPB
To ensure the stable operation of the IPB system, Wetown provides a complete set of auxiliary cabinets:
PT & LA Cubicle (Potential Transformer & Lightning Arrester)
- Function: Provides voltage monitoring and overvoltage protection for the main generator loop.
- Features:
- Modular Design: Draw-out type for easy maintenance and testing.
- Safety Interlock: Mechanical/electrical interlocking to prevent misoperation.
- Protection: Equipped with high-capacity lightning arresters to suppress switching surges.
Neutral Grounding Cabinet (NGC)
- Function: Connects the generator neutral point to ground via a high-resistance resistor to limit fault current.
- Key Specs:
- Rated Voltage: Up to 24kV
- Rated Current: 5A – 20A (Typical)
- Resistance: Stainless steel grid resistors with stable temperature coefficient.
- Monitoring: Integrated intelligent monitor for ground fault detection.
Air Circulation Drying Unit (ACDU)
- Function: Maintains positive pressure and dry air inside the IPB enclosure to prevent condensation and dust ingress.
- Features:
- Dual Mode: Automatic switching between micro-positive pressure and circulation drying.
- Efficiency: Roots blower system ensures high airflow (up to 54m³/h) with low power consumption.
- Intelligence: Real-time humidity and pressure monitoring with remote alarm capability (IEC 61850 ready).
Non-Segregated Phase Bus (NSPB)
Application: Medium voltage distribution in 600MW/1000MW power plants and industrial facilities.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 3.6kV – 40.5kV |
| Rated Current | 630A – 6,300A |
| Short-time Withstand | 40kA – 100kA (4s) |
| Peak Withstand | 100kA – 250kA |
| Insulation Level | 95kV (BIL) – 185kV (BIL) |
- Key Features:
- Compact Design: All phases in a single enclosure without barriers; space-saving.
- Cost-Effective: Economical solution for medium voltage distribution.
- Durability: Robust aluminum/steel alloy enclosure for high mechanical strength.
Segregated Phase Bus (SPB)
Application: Power plant auxiliary power, start-up transformers, and industrial substations.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 3.6kV – 40.5kV |
| Rated Current | 1,000A – 6,300A |
| Short-time Withstand | 50kA – 100kA (4s) |
| Peak Withstand | 130kA – 250kA |
| IP Rating | IP54 / IP65 |
- Key Features:
- Phase Barriers: Metal barriers separate phases within a common enclosure, preventing fault propagation.
- Protection: High IP rating (IP54/IP65) for indoor/outdoor use.
- Maintenance: Easy access for inspection while maintaining phase isolation safety.
Specialized Busbar Systems
Cast Resin Busway (CRB)
Application: Chemical plants, coastal areas, outdoor risers, and harsh environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 0.4kV – 35kV |
| Rated Current | 400A – 6,300A |
| Protection Rating | IP68 (Submersible) |
| Fire Resistance | F120 (120 min) |
| Impact Rating | IK10 |
- Key Features:
- Maintenance-Free: Solid insulation structure requires zero maintenance.
- Fire Resistance: 90-180 minutes fire rating; self-extinguishing insulation.
- Corrosion Resistance: Epoxy resin body resists acid, alkali, and salt spray.
- Explosion-Proof: Suitable for Zone 1 & 2 hazardous areas.
Insulated Copper Tube Busbar (PJTM)
Application: Space-constrained industrial substations and switchgear connections.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 0.4kV – 40.5kV |
| Rated Current | Up to 12,000A |
| Insulation Material | EPDM / Silicone Rubber |
| Partial Discharge | < 10pC |
| Bending Radius | ≥ 3D (Flexible installation) |
- Key Features:
- Skin Effect Optimization: Hollow circular conductor maximizes current carrying capacity.
- Solid Insulation: Shield-insulation structure allows for touch-safe operation (zero surface potential).
- Mechanical Strength: High dynamic stability against short-circuit forces.
- Compact Footprint: Allows reduced phase spacing, ideal for retrofit projects.
Power Transformer Solutions
Wetown’s comprehensive transformer product line leverages advanced manufacturing technologies and 5G-connected smart factory capabilities to deliver high-performance power distribution equipment for diverse applications.
Dry-Type Transformers (10-35kV)
Application: Commercial buildings, data centers, industrial facilities, and renewable energy projects requiring fire-safe, environmentally friendly solutions.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 10kV – 35kV |
| Rated Capacity | 100kVA – 10,000kVA |
| Insulation Class | F / H (155°C / 180°C) |
| Cooling Method | AN / AF |
| Protection Rating | IP20 – IP54 |
| Standard | GB/T 1094.11, IEC 60076-11 |
Manufacturing Excellence
Automatic Winding Technology: First-in-China dry-type transformer automatic winding system precisely controls position and tension of each layer, section, and turn of high-voltage coils, ensuring extreme consistency.
Premium Epoxy Resin System: US Huntsman 5980 epoxy resin system with superior electrical and mechanical properties.
Vacuum Casting Technology: German HEDRICH vacuum casting tank with static mixing process ensuring 100 million times mixing of resin and curing agent for void-free insulation.
Key Features:
- Fire Safety: Self-extinguishing, F1 fire classification, zero oil content eliminating fire hazard.
- Eco-Friendly: No oil, no PCBs, biodegradable materials.
- Low Noise: Optimized core design with <55dB noise level.
- High Efficiency: Low loss amorphous alloy core option available.
Oil-Immersed Transformers (10-35kV)
Application: Power generation, transmission and distribution networks, heavy industrial loads requiring high reliability and overload capability.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 10kV – 35kV |
| Rated Capacity | 50kVA – 50,000kVA |
| Insulation Class | A / E / B / F / H |
| Cooling Method | ONAN / ONAF / OFAF |
| Tap Changer | Off-circuit / On-load |
| Standard | GB/T 1094.1, IEC 60076-1 |
Advanced Core Processing
Premium Silicon Steel: High permeability, low loss cold-rolled grain-oriented silicon steel with Step-Lap core construction.
Advanced Core Assembly: Germany GEORG core cutting and stacking line ensuring precise core geometry and tight tolerances.
Core Grounding: Single-point grounding with no floating potentials, eliminating partial discharge.
Key Features:
- High Overload Capability: Robust design supports 150% overload for 2 hours.
- Long Service Life: 30+ years design life with proper maintenance.
- Comprehensive Protection: Buchholz relay, pressure relief device, oil level indicator, temperature monitoring.
- Flexible Cooling: Multiple cooling options (ONAN/ONAF/OFAF) for different loading conditions.
K-Factor Isolation Transformers
Application: Data centers, IT facilities, medical equipment, and installations with high harmonic content requiring clean power.
Technical Specifications
| Parameter | Value |
|---|---|
| K-Rating | K-4, K-13, K-20 |
| Phase | Single / Three Phase |
| Voltage | Up to 600V |
| Shielding | Electrostatic shield standard |
| Efficiency | DOE 2016 / NEMA TP-1 compliant |
- Key Features:
- Harmonic Mitigation: Designed to handle non-linear loads without overheating.
- Electrostatic Shield: Reduces common-mode noise and transverse-mode noise.
- High Efficiency: Premium efficiency designs reduce operating costs.
Energy Storage Dedicated Transformers
Application: Grid-scale and industrial battery energy storage systems (BESS), solar+storage installations.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Power | 100kVA – 5,000kVA |
| Voltage | 0.4kV – 35kV (LV), 6kV – 35kV (HV) |
| Vector Group | Dyn11, Yyn0, Yd11 (customizable) |
| Insulation | F or H class |
| Cooling | AN / AF |
- Key Features:
- Bidirectional Power Flow: Designed for charging/discharging cycles.
- Low Harmonic Distortion: Optimized for inverter-based systems.
- High Reliability: Designed for frequent cycling and long service life.
Energy Storage Systems
Wetown provides comprehensive energy storage solutions leveraging complete supply chain manufacturing capabilities, from core components to system integration, serving both grid-side and user-side applications.
Grid-Side Energy Storage
Application: Peak shaving, frequency regulation, renewable energy integration, grid stabilization for utility-scale deployments.
Technical Specifications
| Parameter | Value |
|---|---|
| System Capacity | 10MWh – 500MWh+ |
| DC Voltage Range | 1000V – 1500V |
| AC Voltage | 6kV – 35kV |
| Response Time | < 100ms |
| Round-trip Efficiency | ≥ 86% |
| Cycles | ≥ 6,000 (80% EOL) |
| Auxiliary Power | < 1.5% of rated power |
System Architecture
Battery System: High-energy density LFP (Lithium Iron Phosphate) battery packs with integrated BMS, ensuring safety and long cycle life.
Power Conversion System (PCS): Modular design with 2.5MW – 5MW capacity per unit, supporting grid-forming and grid-following modes.
Energy Management System (EMS): Advanced AI-driven optimization algorithms for peak shaving, frequency regulation, and arbitrage strategies.
Transformer & MV Switchgear: Wetown’s own high-efficiency transformer and medium-voltage switchgear integration.
Key Features:
- Grid Services: Primary frequency response, secondary frequency regulation, voltage support, black start capability.
- Renewable Integration: Smoothing of solar/wind output, time-shifting, reduced curtailment.
- High Availability: Modular design with N+1 redundancy, hot-swappable components, remote monitoring.
- Safety: Multi-level BMS protection, gas suppression, thermal runaway prevention, explosion venting.
User-Side Energy Storage
Application: Industrial & commercial peak shaving, demand response, backup power, renewable self-consumption for C&I customers.
Technical Specifications
| Parameter | Value |
|---|---|
| System Capacity | 100kWh – 10MWh |
| DC Voltage Range | 600V – 1000V |
| AC Voltage | 400V – 690V |
| Response Time | < 50ms |
| Round-trip Efficiency | ≥ 88% |
| Cycles | ≥ 8,000 (80% EOL) |
| Installation | Indoor / Outdoor (IP54+) |
System Configuration
Battery Pack: LFP chemistry with cell-level BMS, modular design from 50kWh to 500kWh per unit.
PCS: Bidirectional inverter with 100kW – 1MW capacity, supporting both on-grid and off-grid modes.
EMS: Cloud-based energy management with AI optimization for peak shaving, self-consumption, and demand response.
Integration: Seamless integration with existing electrical infrastructure, PV systems, and smart building systems.
Key Features:
- Peak Shaving: Reduce electricity bills by discharging during peak demand periods.
- Demand Response: Participate in utility DR programs for additional revenue.
- Backup Power: UPS-grade backup for critical loads during grid outages.
- Renewable Self-Consumption: Maximize use of solar generation with time-shifting.
- Smart Control: Mobile app and web portal for real-time monitoring and control.
Energy Storage Manufacturing Excellence
Wetown’s comprehensive vertical integration ensures the highest quality and reliability in energy storage systems:
Complete Supply Chain Manufacturing
- Core Components: In-house production of battery packs (cells from Tier-1 suppliers), BMS, PCS, transformers, switchgear, and enclosure systems.
- Prefabricated Cabin: Custom-designed weatherproof enclosures with integrated HVAC, fire suppression, and access control.
- Quality Assurance: 100% functional testing, burn-in testing, and system-level integration testing before shipment.
System Integration Capabilities
- Grid-Connected Systems: Full EPC capabilities for utility-scale projects, including interconnection studies and utility coordination.
- Microgrids: Turnkey microgrid solutions with solar, storage, and backup generation integration.
- Industrial & Commercial: Customized solutions for manufacturing facilities, data centers, and commercial buildings.
Intelligent Energy Management
- AI-Driven Optimization: Machine learning algorithms for predictive charging/discharging, revenue optimization, and battery life management.
- Grid Services: Automatic participation in frequency regulation, spinning reserves, and other ancillary service markets.
- Remote Monitoring: 24/7 operations center with predictive maintenance, fault diagnostics, and performance optimization.
Wetown’s energy storage solutions deliver reliable, safe, and economically optimized energy storage for the full spectrum of applications – from residential and commercial to utility-scale grid storage.