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75 KVA Dry Type Isolation Transformer
Instrava Curated Transformer — Reliable Power Isolation and Protection for Modern Electrical Systems
At Instrava, we go beyond simply supplying transformers. Through our Curated Transformer approach, we carefully evaluate and select proven power distribution technologies from trusted manufacturers, ensuring dependable performance, enhanced power quality, and long-term operational confidence.
The 75 KVA Dry Type Isolation Transformer is designed to provide safe electrical isolation and efficient voltage transformation from 480V Delta to 208Y/120V Wye, making it an ideal solution for commercial, industrial, institutional, and mission-critical power systems.
Featuring a dry-type, oil-free design and harmonic mitigating capabilities, this transformer helps improve power quality, reduce harmonic distortion, protect sensitive equipment, and enhance overall system reliability. Manufactured to ANSI, IEEE, CSA, and DOE standards and available with UL, cUL, CSA, SGS, and CE certifications, it delivers a trusted solution for modern facilities requiring clean and stable power distribution.
Transformer Description
Why Choose a Dry Type Isolation Transformer?
Complete Electrical Isolation for Enhanced Safety
The transformer provides galvanic isolation between the primary and secondary windings, helping protect equipment and personnel from electrical disturbances, ground faults, and unwanted voltage transients.
Electrical isolation helps:
- Improve system safety
- Reduce electrical noise
- Minimize ground loop problems
- Protect sensitive electronic equipment
- Enhance overall power quality
Harmonic Mitigating Design
Modern facilities often contain nonlinear loads such as:
- Variable Frequency Drives (VFDs)
- UPS Systems
- Data Center Equipment
- LED Lighting Systems
- Automation Equipment
- Computer Networks
These loads generate harmonics that can negatively impact electrical systems.
The Harmonic Mitigating Isolation Transformer (HMT) is specifically designed to reduce harmonic currents and improve power quality, helping increase equipment reliability and reduce premature failures.
Ideal 480V to 208Y/120V Voltage Conversion
The transformer converts 480V Delta power to a 208Y/120V Wye system with neutral, providing flexible power distribution for:
- Three-phase equipment
- Single-phase loads
- Office systems
- Lighting circuits
- IT infrastructure
- Commercial appliances
Dry-Type Oil-Free Construction
Unlike liquid-filled transformers, dry-type transformers eliminate the risks associated with insulating oil, including:
- Fire hazards
- Oil leaks
- Environmental contamination
- Additional maintenance requirements
This makes them especially suitable for occupied buildings and environmentally sensitive installations.
High Reliability and Low Maintenance
Built using premium electrical steel cores and precision winding technology, the transformer delivers dependable long-term operation with minimal maintenance requirements.
Compliance with North American Standards
Designed to meet ANSI, IEEE, CSA/CAN, and DOE requirements, the transformer provides confidence for engineers, contractors, utilities, and facility operators throughout North America.
Engineered for Critical Applications
The 75 KVA Dry Type Isolation Transformer is widely used wherever clean power, electrical isolation, and harmonic mitigation are required.
Data Centers
Provides isolated and conditioned power for servers, network switches, UPS systems, and mission-critical IT infrastructure.
Commercial Buildings
Supports offices, retail facilities, hotels, and mixed-use developments requiring reliable 208Y/120V distribution systems.
Healthcare Facilities
Ensures safe power distribution for medical equipment, laboratories, imaging systems, and critical patient care environments.
Educational Institutions
Provides dependable power for classrooms, research laboratories, computer centers, and campus infrastructure.
Industrial Automation Systems
Protects PLCs, automation controllers, VFDs, process control systems, and sensitive manufacturing equipment.
Renewable Energy Installations
Suitable for battery energy storage systems (BESS), solar energy projects, and distributed generation systems requiring electrical isolation and voltage conversion.
Optimized Solutions for Every Facility
At Instrava, we do more than supply transformers.
Our Optimized Solutions approach helps customers:
- Select the proper transformer size
- Reduce harmonic distortion
- Improve power quality
- Enhance system reliability
- Meet electrical code requirements
- Lower long-term operating costs
The result is a transformer solution tailored to real-world operating conditions.
Transformer Parameter
| Parameter | Specification |
|---|---|
| Product Name | Dry Type Isolation Transformer |
| Transformer Type | Harmonic Mitigating Isolation Transformer |
| Rated Power | 75 KVA (Custom Capacities Available) |
| Primary Voltage | 480V Delta |
| Secondary Voltage | 208Y/120V Wye with Neutral |
| Connection Type | Dyn11 or Customized |
| Phase Configuration | Three Phase |
| Frequency | 50Hz / 60Hz |
| Electrical Isolation | Full Galvanic Isolation |
| Harmonic Mitigation | Yes |
| Cooling Method | Natural Air Cooling |
| Insulation Type | Dry Type, Oil-Free |
| Application Voltage Class | 600V and Below |
| Standards | ANSI, IEEE, CSA/CAN, DOE |
| Certifications | UL, cUL, CSA, SGS, CE |
| Installation Environment | Indoor Industrial and Commercial Applications |
| Available Capacity Range | Customizable |
Instrava OEM/ODM
Reliable Instruments & Power Infrastructure. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven measurement instruments and heavy-duty power transformers from trusted China manufacturers to ensure consistent quality. By thoroughly evaluating engineering topologies against real working conditions, we solve practical grid and process challenges, providing tailored configurations to meet specific application needs.
By combining selection expertise with deep application understanding, Instrava helps customers reduce operational risk, improve energy efficiency, and achieve dependable results across complex industrial and power distribution environments.
What is the difference between an isolation transformer and a standard transformer?
The primary difference is electrical isolation.
An isolation transformer completely separates the primary and secondary circuits, helping reduce electrical noise, protect equipment, and improve safety. Standard autotransformers or voltage transformers may not provide this level of isolation.
Why is harmonic mitigation important?
Harmonics generated by nonlinear electrical loads can cause:
- Equipment overheating
- Reduced energy efficiency
- Nuisance breaker trips
- Premature equipment failure
- Poor power quality
A harmonic mitigating isolation transformer helps reduce these effects, improving overall system reliability and performance.
Is a dry type isolation transformer safer than an oil-filled transformer?
For indoor applications, dry type transformers are often preferred because they contain no flammable insulating oil. This reduces fire risks, eliminates oil leakage concerns, and simplifies installation in occupied buildings.
Why convert 480V to 208Y/120V?
The 480V to 208Y/120V configuration is one of the most common power distribution arrangements in commercial and institutional facilities because it supports both:
- 208V three-phase equipment
- 120V single-phase loads
This flexibility allows a single transformer to serve diverse electrical requirements.
What industries commonly use dry type isolation transformers?
These transformers are widely used in:
- Data centers
- Hospitals
- Schools and universities
- Commercial buildings
- Manufacturing facilities
- Airports
- Renewable energy systems
- Government facilities
Any application requiring clean, reliable, and isolated power can benefit from this transformer type.
How do I select the correct transformer size?
Transformer sizing should consider:
- Total connected load
- Future capacity expansion
- Harmonic content
- Continuous operating load
- Equipment startup currents
Proper sizing improves efficiency, reliability, and equipment lifespan.
Why Choose Instrava
Built on Consistency, Not Claims
Focused on Industrial Applications
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Strict Product Selection Criteria
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
Reliable Supply & Quality Consistency
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Practical, Experience-Based Support
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.
