Brand

Used Daewoo Diesel Generators

Daewoo machines are the practical choice in the larger ratings: Korean-built, mechanically straightforward, and common enough in Asia that parts and experienced fitters are not a problem. Most of our stock is in the 500 kVA and above classes.

Our Daewoo stock sits in the larger commercial and industrial ratings, in open and container builds, which is where the brand is most often specified. The machines are bought by projects that want a straightforward large set rather than a premium European badge.

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Available units

Used Daewoo generators listed on this site

8 individual used sets are listed below. Each one is photographed where it stands and carries its own parameter table. Ratings are prime power in kVA at 0.8 power factor.

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In stock

Daewoo sets we hold

Current used stock carrying Daewoo. Each set is listed individually with its own photographs and parameter table.
Item Detail
Sets in stock A small line of large sets
Rating range 500 to 1500 kVA
Build forms Open frame and containerized
Rating basis Prime power in kVA at 0.8 power factor, with the standby figure given where the documentation supports it
Price Quoted on request. Send the rating, the site voltage and frequency, the destination port and the duty

Brand notes

Daewoo in a used set

What the brand means on a used machine, and what it does not.
Item Detail
Origin Daewoo, Korea, with the engine line continued under Doosan
Engine families seen in this stock Daewoo and Doosan heavy-duty industrial engines in the large ratings
Alternator pairings Usually Stamford or a Korean-built alternator; quoted from the nameplate
Parts Available through the Doosan network and through the independent diesel parts trade in the region, which is a practical advantage on an older machine
What the brand does not tell you Which generation of the engine the set carries, because the Daewoo and Doosan lines overlap and the parts differ between them. The engine serial number is the answer, and it should be read from the block

Requirements

What to check on a used Daewoo set

Inspection points that matter on a used Daewoo machine, in the order we check them.
Item What we check Why it matters
Engine hours and the hour meter itself The reading, and whether it agrees with the service records An hour meter is the easiest thing on a set to replace, and the hardest to verify afterwards
Engine make and model The plate on the block, not the badge on the canopy On a used set the engine is the value; the canopy is sheet metal
Serial number and build year Read from the block and checked against the documentation It fixes which revision of the engine you are buying parts for
Oil pressure and blow-by Hot idle oil pressure, and the crankcase breather with the engine running Together they say more about bore and ring condition than any other two checks
Coolant and oil condition Colour, level, and whether there is fuel or combustion gas in the coolant Contamination is a sign of a head gasket or a liner problem rather than routine wear
Alternator Make and model, insulation resistance, and a visual check of the windings The alternator is the second most valuable item, and moisture damage hides until it is loaded
Control panel Model, firmware, and whether the protection settings can be read and changed A panel that cannot be configured is a panel that will be replaced
Load test Load bank run at 100%, 75% and 50%, with the figures recorded A set that starts and idles proves very little about a set that has to carry a load
Corrosion and enclosure Seams, fasteners, base frame and the radiator core On a coastal or island site this is the difference between a repaint and a rebuild

Questions

Questions we are asked about Daewoo sets

Why does the badge on the canopy not settle which engine is inside?

Because used sets are re-canopied, re-badged and re-painted as they move between owners and markets. Two machines that both read Daewoo on the side can carry different engine families, different alternators and control panels from different decades. The plate on the engine block and the alternator nameplate are what the quotation is actually about.

How are these sets rated?

Ratings are quoted as prime power in kVA at 0.8 power factor, with the standby figure given where the set and its documentation support one. Prime and standby are two different ratings of the same machine, and a set that has run for years as prime power should not be re-labelled as standby without an inspection.

What is included with a set bought here?

The set as photographed, its parameter table, the load test figures where they exist, and the documentation we hold

Can the set be re-wound or re-configured for another voltage or frequency?

Voltage changes are usually a reconnection of the alternator and are quoted per machine. Frequency is not: a 50 Hz set runs at 1500 rpm and a 60 Hz set at 1800 rpm, and the engine, the radiator and the alternator rating all differ. If a project needs the other frequency, the right answer is another machine rather than a conversion.

Who services a used Daewoo set in Southeast Asia?

Through the Doosan network or the independent diesel trade, or by the buyer’s own maintenance team

Related

Related pages

Looking for a large set in the 500 kVA class and above?

Send the rating, the duty and the destination port, and we will come back with what is in stock.

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