20kV Three Phase Oil-Immersed Earthing Transformer - Experts Electrical

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20kV Three Phase Oil-Immersed Earthing Transformer

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Model

JDS-100KVA-20KV

Basic info Product Detail Supplier

Basic info

Brand	ROCKWILL
Model NO.	20kV Three Phase Oil-Immersed Earthing Transformer
Rated voltage	20kV
Rated capacity	100kVA
Phases	Three-phase
Series	JDS

Product Detail

Product Overview
Rockwill's JDS series oil-immersed earthing transformers provide reliable neutral grounding solutions for 20kV power systems. Designed with robust copper windings and advanced oil-cooling technology, these transformers ensure stable system operation while preventing damage from ground faults.

Basic Info

Key Specifications

Model: JDS-100/20
Capacity: 100kVA
Voltage: 20kV
Frequency: 50/60Hz
Winding: Copper two-winding design
Core: Ring-shaped silicon steel
Cooling: ONAN (Oil Natural Air Natural)
Impedance: Low zero-sequence impedance (<10Ω)
Certification: ISO 9001, CTQC tested

Technical Advantages

Superior Grounding Performance
- Specially designed winding configuration for optimal neutral point stability
- Withstands 100A short-circuit current for 10 seconds
- Low zero-sequence impedance ensures effective fault current diversion
Advanced Oil-Cooled Design
- Hermetically sealed corrugated tank prevents oil contamination
- Mineral oil insulation with -30°C to +40°C operating range
- Optional Midel 7131 ester fluid for enhanced fire safety
Robust Construction
- Heavy-gauge steel tank with anti-corrosion treatment
- Precision-engineered core with reduced magnetic losses
- Vibration-resistant mounting system
Smart Protection Features
- Standard Buchholz relay for internal fault detection
- Pressure relief device for overload conditions
- Oil level indicator with alarm contacts

Application Scenarios

Industrial Power Systems
- Ideal for manufacturing plants with sensitive equipment
- Protects against ground faults in 20kV distribution networks
- Suitable for harsh industrial environments
Renewable Energy Installations
- Wind farm collector substations
- Solar park step-up stations
- Biomass power generation facilities
Infrastructure Projects
- Metro power supply systems
- Airport electrical networks
- Hospital backup power systems

Why Choose Rockwill?

20+ years of transformer manufacturing expertise
Custom engineering support available
Complete type test reports provided
Global service network with 24/7 technical support
Environmentally conscious production processes

Know your supplier

ROCKWILL

Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001

Main Categories

High voltage

Business Type

Design/Manufacture/Sales

Highest Annual Export (USD)

$150,000,000

Professional Experience

16 years

Workplace

108000m²m²

占位

占位

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