On-line Oil Filtration Unit
Why Oil Filtration Matters
- OVERALL BENEFITS
- Conventional vs EMR Solution
- Key Features
- Support & After-Sales
OVERALL BENEFITS
Maintains oil quality and dielectric strength.
Extends life of OLTC & transformer.
Reduces maintenance downtime and costs.
Provides uninterrupted filtration while transformer is in service.
Eliminates frequent oil replacement.
Conventional vs EMR Solution
Conventional Oil Maintenance
Manual oil replacement.
High cost and downtime.
Environmental disposal issues.
On-line Oil Filtration Unit
Continuous filtration during operation.
Cost-effective, safe, and eco-friendly.
Zero downtime for filtration.
Comparison Table
Parameter | Conventional Oil Change | On-line Oil Filtration Unit |
Oil Quality | Restored temporarily | Maintained continuously |
Transformer Downtime | Required | Not required |
Operating Cost | High (oil + labour) | Low |
Environmental Impact | Disposal problems | Eco-friendly |
OLTC Life | Reduced | Extended |
Key Features
On-line filtration without stopping transformer.
Removes carbon, moisture, and sludge.
Compact skid-mounted design.
User-friendly controls.
Designed for different OLTC models.
Long service life with minimal maintenance.
Support & After-Sales
Spares and replacement filters available.
Retrofit solutions for existing OLTCs.
Training programs for operators.
Dedicated technical support.
Oil Filtration Unit - frequently asked questions
What is an On-line Oil Filtration Unit for OLTC?
An On-line Oil Filtration Unit is a system designed to continuously filter OLTC oil while the transformer remains in operation. It maintains oil cleanliness and supports stable OLTC performance without service interruption.
Why is Oil Filtration for OLTC important for transformer reliability?
Oil Filtration for OLTC removes contaminants that degrade dielectric strength. This protects switching components, prevents insulation stress, and enhances overall transformer reliability.
How does an On-line Oil Filtration Unit improve OLTC service life?
By maintaining oil quality and dielectric strength, the filtration unit reduces wear on OLTC contacts and insulation. This extends the operational life of both the OLTC and transformer.
What maintenance benefits does an On-line Oil Filtration Unit provide?
On-line filtration enables continuous oil treatment while the transformer is in service. This reduces maintenance downtime, lowers servicing costs, and eliminates frequent oil replacement activities.
When should utilities specify Oil Filtration for OLTC in transformer projects?
Oil Filtration for OLTC is specified when reliable, uninterrupted transformer operation and long-term oil quality are critical. It becomes essential when the OLTC performs over 40–60 tap‑changing operations per day, due to faster oil degradation
