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Cheryong Electric padmount transformers
Cheryong Electric is a South Korean transformer maker with its head office in Seoul and two factories in Daejeon. It builds single and three phase padmount transformers to IEEE and NEMA standards with North American voltages up to 34,500GrdY/19,920 V, along with pole mounted, oil immersed power and cast resin dry type transformers. It is listed on the KOSDAQ market.
What they build
- Three phase padmount transformers, 45 to 7,500 kVA, primary up to 34,500GrdY/19,920 V, secondary 600 V and below, up to 150 kV BIL
- Single phase padmount transformers, 10 to 250 kVA, primary up to 34,500GrdY/19,920 V
- Pole mounted transformers, 10 to 500 kVA, primary up to 34,500GrdY/19,920 V
- Oil immersed power transformers, 100 to 30,000 kVA, up to 72,000 V and 350 kV BIL
- Cast resin dry type transformers, 50 to 10,000 kVA, up to 36,000 V and 170 kV BIL, with a seismic withstand option to IEEE 693
- Mineral oil or natural ester fluid, silicon steel or amorphous cores, mild steel or stainless steel tanks
Company facts
- Head office in Seoul, with factories 1 and 2 in Daejeon. The Daejeon plant was expanded with the second factory.
- States that it obtained UL and cUL certification for three phase padmount transformers up to 3,750 kVA.
- Reports annual exports above US$100 million.
- Delivered what it describes as the world's largest amorphous metal core transformer, rated 15 MVA.
- Developed a solid insulation underground transformer and a 170 kV gas insulated switchgear.
- Holds ISO 9001 and ISO 14001 certification and is listed on the KOSDAQ market.
How they sell
Builds to order, so a purchase order buys a production slot rather than a unit on a shelf.
In practice that means a purchase order is a place in a queue. Ask for the lead time from purchase order in writing, and ask whether the quoted date is a ship date or a production start. Those are not the same thing and quotes rarely say which.
Where they fit on a job
KR origin makes this a candidate for federal and Buy American work, where TAA eligibility is a hard gate rather than a preference.
Common ratings
If the lead time does not work
These hold stock, so they are where to look when the date will not move.
Common questions
Is Cheryong Electric UL listed for padmount transformers
Cheryong Electric Co., Ltd. appears in the UL XPLH list for liquid filled pad mounted transformers under file E547761, in the copy of the list we track. The company states its UL and cUL certification covers three phase padmounts up to 3,750 kVA, so confirm the listing for larger units before you order.
What sizes of padmount does Cheryong make
Three phase padmounts from 45 to 7,500 kVA and single phase from 10 to 250 kVA, with primaries up to 34,500GrdY/19,920 V and secondaries of 600 V and below.
Where are Cheryong transformers made
In Daejeon, South Korea, at two factories. The head office is in Seoul.
Are Cheryong transformers TAA eligible
South Korea is a designated country under the Trade Agreements Act, so units built there are generally TAA eligible. Confirm the country of manufacture on the specific unit.
Sources
- Cheryong Electric, History
- Cheryong Electric, Padmount transformers
- Cheryong Electric, Polemount transformers
- Cheryong Electric, Oil immersed transformers
- Cheryong Electric, Cast resin transformers
- Cheryong Electric, Locations
We are a distributor, not Cheryong Electric, and we have no exclusive arrangement with them. If they are the right answer for your job we will say so, and if they are not we will say that too. Send us the spec or call 786 220 2801.