Paid on pickup
Transformer Oil Testing: What Each Test Tells You
A working guide for Ohio sellers: what decides the number and how the unit leaves.
What we buy
What we buy here
Transformer Oil Testing: What Each Test Tells You is a subject where Ohio practice and the national rulebook agree most of the time and differ in ways that matter. A seller with four units on one site gets a better number per unit than a seller with one. A unit with elevated gas that has been stable for a decade is a different proposition from one where the figure doubled.
If you do only one thing, photograph the nameplate and the cabinet in good light. A quick decision is a kindness when the unit is standing in the way of a project. The best outcome is a unit that leaves the site and turns up somewhere useful, and that happens more often than people expect.
Who we buy from
Six kinds of seller, one desk
- Recyclers
- Electrical contractors
- Equipment dealers
- End users
- Demo contractors
- Distributors
Fast offers
A nameplate photo is usually enough to price a unit the same day.
Dedicated logistics
We arrange the crane, the permits and the flatbed, not you.
No broker fees
You are dealing with the buyer, so nothing is shaved off the offer.
How it works
Six steps from your yard to the money
- 01
Take pictures
The nameplate, the cabinet interior and the tank in daylight. Three photographs are usually enough to place a unit in the right class and the right price band.
- 02
Send them to us
The form on this page, a text or an email all reach the same desk. Include the city, the access and any deadline the site is working to.
- 03
Review the offer
A buyer reads the photographs, asks one or two questions and sends a written offer with the assumptions stated, so nothing changes on the day.
- 04
We schedule freight
Crane, flatbed and permits are booked around your access. You get a date and a window, and we carry the cost of getting it right.
- 05
Testing on arrival
Winding resistance, megger and turns ratio, plus oil analysis where the unit is liquid filled. The results decide the final number, and you see them.
- 06
Get paid
Payment is released on the agreed terms once the unit is received and tested, by check or ACH. No retention, no sixty-day terms.
What we handle for you
The parts sellers dread, done for you
Rigging
Crane and forklift arranged around your access, not the other way round.
Oil containment
Bunds, absorbent and disposal handled before the unit moves.
Bill of sale
A clean title document for your records, signed on collection.
PCB paperwork
Pre-1979 units get the testing and the manifest they need.
Guide
The core panel
A standard oil panel covers dielectric strength, moisture, acidity, interfacial tension and dissolved gas, and together they describe the oil and the insulation. Dielectric strength measures the oil's ability to resist voltage, and a low figure usually means water or particulate. Acidity rises as oil oxidises, and a high acid number means the oil is breaking down rather than simply dirty.
A short drive within one county costs less than a long drive across three, and the number shows it. Nothing about a transformer improves by waiting, and the oil in particular gets worse rather than better.
Moisture is the quiet killer
Water in oil reduces dielectric strength and attacks the paper insulation, and paper damage is permanent. A unit that has been stored outdoors without a breather will usually show moisture above the acceptable range. Moisture can sometimes be removed by processing, which is much cheaper than a rewind.
A unit that has been looked after is obvious within a minute, and so is one that has not. A plant engineer who knows the fault history is worth more than a file of invoices.
PCB screening
Using the result
Checklist for transformer oil testing: what each test tells you
Questions about transformer oil testing: what each test tells you
Related guides
Get started
Get an offer in minutes
Five fields and a phone number is all we need to start. We reply the same business day, and a firm number follows the nameplate photo.
(614) 715-3047or send the form and we will call you.
Questions
What sellers ask before they call
Equipment types
Does transformer oil testing: what each test tells you change what a transformer is worth?
Any unit built before 1979 should be screened for PCBs before it moves, and the screen is a separate test from the standard panel. The cost of the screen is trivial compared with the cost of moving a contaminated unit as though it were clean.
Service area
Where does a seller start with transformer oil testing: what each test tells you?
Dielectric strength measures the oil's ability to resist voltage, and a low figure usually means water or particulate. A buyer who has seen the site will always beat a buyer who has only seen a form, which is why the visit is free.
Payment
Is transformer oil testing: what each test tells you part of what a buyer checks on site?
A clean panel supports a firm offer, while a marginal panel supports a conditional offer with a stated repair allowance. The test sheet belongs with the unit, and a seller who keeps it makes the purchase faster and better.
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