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4000 KVA 3-Phase Oil Filled OLTC Power Transformer


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SZ11 series of products in the S9 series of the basic, the average reduction of air loss of 30%, the average temperature rise reduced by 10K, product life expectancy increased by more than twice.
Even under the condition of overloading by 20%, it can still run for a long time, and the running noise of the product is reduced by 2-4 dB on average.

Product Description

Performance Characteristics

Type of unit: Outdoor Normal

Ambient operating conditions: Altitude not exceeding 1000m.

Ambient temperature: Maximum +40℃, minimum -25℃.

Special ambient operating conditions: Altitude over 1000m.

Ambient temperature max +40℃, min -45℃. (Specify in detail when ordering) Installation place: Area without corrosive gas, without obvious dirt, etc.

Product Standards：

GB1094.1~2-2013 Power Transformer
GB1094.3,5-2003 Power Transformer
GB1094.4-2005 Power Transformers
GB/T6451-2015 Three-phase oil-immersed power transformer technical parameters and requirements

Model meaning:

SZ11-□/□

S	Three phase oil immersed transformer
Z	Performance level code
11	Sealed construction
□	Rated capacity(KVA)
□	Voltage level(KV)

Technical parameters

Rated capacity(KVA)	Voltage combination			Connection group label	No-load loss(W)	Load loss(W)	Short circuit resistance(%)	No-load current(%)	Weight(Kg)			External dimensions	Gauge(mm)
Rated capacity(KVA)	High tension (KV)	Tapoff (%)	Low pressure (KV)	Connection group label	No-load loss(W)	Load loss(W)	Short circuit resistance(%)	No-load current(%)	Body weight	Oil weight	Total weight	L×W×H	Gauge(mm)
200	11 10 6.3 6	±4×2.5%	0.433 0.422 0.415 0.4	Yyn0 or Dyn11	385	2910	4.0	1.2	595	210	1065	1400×755×1210	550×550
250					450	3420		1.1	690	220	1200	1430×800×1220	550×550
315					535	4100		1.0	825	270	1400	1470×835×1350	550×550
400					640	4960		0.9	1010	280	1670	1530×900×1400	660×660
500					770	5900		0.9	1205	330	1980	1550×930×1440	660×660
630					960	7270	4.5	0.8	1365	395	2305	1760×890×1460	660×660
800					1120	8890		0.7	1630	470	2740	1810×935×1810	820×820
1000					1360	10430		0.6	1820	550	3160	1920×1090×1860	820×820
1250					1560	12400			2120	635	3595	2035×1210×1930	820×820
1600					1920	14800			2540	735	4220	2085×1380×2070	820×820
2000					2020	18200		0.5	3030	930	4700	2115×1490×2200	820×820
3150					3160	25300	5.0	0.4	Please contact us for detailed data.
4000					3900	30000	5.0	0.4
5000					4970	34430	5.0	0.4