66kv 110kv 220kv 330kv 100mva Outdoor Transformer Oil Immersed, Onaf Ynd11 on Tap Changer Customized

• Application: Power, Electronic, Lighting, Rectifier, Audio
• Phase: Three
• Core: Core-type Transformer
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: MK-TM2966
• Cooling Method: Dry-type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: Ring
• Brand: China
• Transport Package: Wooden Case
• Specification: Customized
• Trademark: Markevina or OEM
• Origin: China
• Production Capacity: 100, 000, 000/Year
• Package Size: 200.00cm * 300.00cm * 200.00cm
• Package Gross Weight: 200000.000kg

Product Description

100MVA Outdoor Transformer Oil immersed, High Voltage 13.8KV to 138KV ONAF YNd11 On Tap Changer
 

1.Product introduction

Three-phase high-voltage power  transformers can be widely used in industry, such as start spot welding machine, automatic welding machine, butt welding machine, straightening machine, steel wire rolling machine, diffusion welding machine, seam welding, roll welding, touch welding, row welding machine etc.

 

 

2. Normal operating conditions

Three-phase high-voltage power transformer should be able to work normally under the following conditions:

a) Altitude: not more than 1000m;

b) Ambient temperature: -15 ºC ~ + 40 ºC

c) The relative humidity of the air does not exceed 95% (at + 25 ºC);

d) In a gas or steam environment without damage to insulation;

e) Used in explosive environment without methane coal dust.

3. Product parameters
 

Item	Descirption	Offered
1	General information
1.1	Supplier	Markevina China
1.2	Place of manufacture	China
2	Type of transformer	Core, Outdoor, Oil immersed
3	Continuous ratings Capacitor	33.333MVA
4	Phase	1
5	Cooling  Type	ONAF
6	Rated voltage on principal tapping	138/13.8kV
7	Rated frequency	60Hz
8	Vector Group(After three single-phase transformers are connected externally)	YNd11
9	Tap-changers
9.1	Type	OLTC
9.2	Maker	Guizhou Changzheng
9.3	Model	ZM Model
9.4	Preclse electrical location of tappings	HV
9.5	Tapping range of HV/LV ratio % of the ratio on the principal tapping
9.5.1	Max	10%
9.5.2	Min	10%
9.6	Number of steps	17 steps
9.7	Size of steps	1.25%
10	Ohmic impedance at 75ºC and rated frequency based on maximum rated power of HV winding
10.1	On principal tapping	10.50%
10.2	On extreme plus tapping	11%
10.3	On extreme minus tapping	10%
11	Temperature rises
11.1	Top oil (thermometer)	55K
11.2	Winding(by resistance)	65K
12	No-load loss on principal tapping at ratings	32kW
13	load loss at ratings	108kW
14	Impulse withstand test voltage for(1.2/50us)
14.1	HV	650kV(peak)
14.2	LV	95kV(peak)
14.3	HV of Netural point	325kV
15	Sixty-second, power-frequency withstand test voltage
15.1	HV	275kV(rms)
15.2	LV	28kV(rms)
15.3	HV of Netural point	140kV
16	Main terminal bushings
16.1	Impulse withstand test voltage at sea level(1.2/50us)
16.1.1	HV	650(peak)
16.1.2	LV	125(peak)
16.1.3	HV of Netural point	325kV
16.2	Sixty-second,power-frequency withstand test voltage to earth
16.2.1	HV	275kV(rms)
16.2.2	LV	50kV(rms)
16.2.3	HV of Netural point	140kV
17	Approx. Mass
17.1	Core &coils	21700kg
17.2	Mass of oil	10400kg
17.3	Total mass	48600kg
17.4	Shipping mass for heaviest part	39500kg
18	Filling medium for transport	Oil
19	Overall dimensions of heaviest part
	Length*Width*Height	4500*2200*3200
20	Overall dimensions of complete transformer
	Length*Width*Height	4700*5300*5700

 

Product Description: