11KV 30KVA Oil Filled Three phase Power Transformers

.Low no-load loss&energy conservation 2.Low noise&environmental protection 3.Power Transformers 4.IP20 IP23 5.IEC ISO

11 KV Power Transformers

Normal Operation Conditions

1.Installation site: outdoors or indoors

2.Altitude: less than 1000M

3.Ambient temperature: -25oC~+40oC

4.Maximum relative humidity: 95%(25oC)

5.Earthquake-resistant capability: the horizontal acceleration of ground surface is 0.3g, and the vertical acceleration of ground surface is 0.15g

concurrently acting continuous three sine waves, safety factor ≥1.67

6.All-weather working capability in outdoor environment

7.The equipment has certain capability in dustproof, antifouling, waterproof, earthquake resistance and shock resistance

Note: Transformers operating in special environment are available upon the demand of customers.

Standard of Products

GB1094.1-1996, GB1094.2-1996, GB1094.3-2003, GB1094.5-2008, GB1094.7-2008, GB/T6451-2008, etc

Performance Parameter List

Rated capacity (kVA)	Voltage combination and tap range			Connection Group	No-load loss (W)	75oC load loss   (W)	No-load current (%)	Impedance voltage (%)
	High voltage (kV)	Tap (%)	Low voltage (kV)
10	6 6.3 6.6 10 10.5 11	±5 ±2×2.5	0.4 0.69	Yyn0 Dyn11 Yzn11	55	310/325	2.80	4.0
20					70	480/500	2.50
30					100	600/630	2.30
50					130	870/910	2.00
63					150	1040/1090	1.90
80					180	1250/1310	1.90
100					200	1500/1580	1.80
125					240	1800/1890	1.70
160					280	2200/2310	1.60
200					340	2600/2730	1.50
250					400	3050/3200	1.40
315					480	3650/3830	1.40
400					570	4300/4520	1.30
500					680	5150/5410	1.20
630					810	6200	1.10	4.5
800					980	7500	1.00
1000					1150	10300	1.00
1250					1360	12000	0.90
1600					1640	14500	0.80
2000					2000	17400	0.70	5.0
2500					2400	20200	0.60
3150					2800	24000	0.50

Note: 1. Load loss values above the oblique line in the table are applicable to the Yyn0 connection group, and the values below the oblique line are applicable to the Dyn11 or Yzn11 connection group. 

  

2. The list shows main performance parameters of a three-phase duplex winding off-circuit-tap-changing distribution transformer. Customized transformers of different specification are available upon the demand of users.

11KV 30KVA Oil Filled Three phase Power Transformers