250 kVA 10kv Resin Cast Dry Type Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier
• Phase: Three
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: EE
• Brand: Vouchinvan
• Type: Resin Cast Dry Type Transformer
• Standard: IEC60076
• Cooling Type: an/Af
• Winding Material: Aluminum
• Vector Group: Dyn11
• Impedance: 4%
• Tap Changer: Nltc
• Tapping Range: ±2*2.5%
• Accessories: Temperature Controller, Cooling Fans
• Transport Package: Wooden Case
• Specification: 250kva
• Trademark: Vouchivan
• Origin: Xuzhou, China
• HS Code: 85042100

Product Description

Product Description

The 250 kVA epoxy resin cast dry type transformer was delivered to Georgia in 2022 for a national project. Transformers are used on the highway.
 
The rated power of the dry type transformer is 250 kVA with AN cooling, the primary voltage is 10 kV with ±2*2.5% tapping range(NLTC), the secondary voltage is 0.4kV with delta star connection.
 
Cast resin technology provides excellent insulation and environmental protection, this together with the foil winding technology inside the resin offers the ultimate dry type transformer in terms of dielectric performance and short circuit withstand ability and ensures long term reliability for both distribution and special applications. cast resin transformers can be supplied with either aluminum or copper windings together with possibility of class F or class H insulation system, they can be designed to in-door or out-door installation with different enclosures.
 
We ensure that each one of our delivered units has undergone rigorous full acceptance testing. We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, our products are now operating in more than 50 counties in the world. We aim to be your most reliable supplier as well as your best partner in business!
 

What is the difference between dry type transformer and oil?

Dry-type transformers use air as the cooling medium, while oil-filled transformers use oil instead of air. Some public places do not use oil-filled transformers because they are a big fire hazard and, instead, use dry-type transformers. This is because the liquid being used is flammable.

Temperature control system

Built-in PT100 probes in 3 phase windings to detect the real-time temperature of windings and cycle display them in the digital screen.

Open circuit alarm and fault self-check alarm display and signal output.

3 stages automatically actions while the temperature reached to the set value, 1st stage the cooling fans start automatically, 2nd stage high temperature alarm,3rd stage over temperature trip.

Fans manual/auto control switch, timing start/stop, history data output.

4-20mA current output

RS485 Modbus communication protocol

Environment temperature measurement

Core temperature measurement

Dry Type Transformer Advantages:

1. No Fire Hazard

2. Safety for people and property

3. Outage customer costs

4. Ecological and Environmentally Friendly

5. Maintenance & Pollution Free

6. Suited for damp and/or contaminated

7. Excellent resistance to short circuit effect

8. Excellent capacity to support overload

9. Excellent performance toward seismic phenome

10. Saving Costs give lower installation related costs

11. Easy Installation

 
Scope of Supply
 

Product: resin cast dry type transformer

Voltage level: up to 35KV

Rating level: up to 20MVA

The transformer can be designed according to customer's requirements

 
Technical Specification

 

SCB 10
Rated capacity (KVA)	Voltage Combination andTap range			Vector group Symbol	No-load loss                        (W)	Load loss (W)	Impedance Voltage(%)	No-load current(%)
	HV(KV)	HVTap range(%)	LV(KV)
30	6     6.3     10    10.5   11	±5%     or ±2*2.5%	0.4	Dyn11	190	710	4.0	2.0
50					270	1000		2.0
80					370	1380		1.5
100					400	1570		1.5
125					470	1850		1.3
160					540	2130		1.3
200					620	2530		1.1
250					720	2760		1.1
315					880	3470		1.0
400					980	3990		1.0
500					1160	4880		1.0
630					1300	5960	6.0	0.85
800					1520	6960		0.85
1000					1770	8130		0.85
1250					2090	9690		0.85
1600					2450	11700		0.85
2000					3050	14400		0.70
2500					3600	17100		0.70

 

SCB 11
Rated capacity (KVA)	Voltage Combination andTap range			Vector group Symbol	No-load loss                        (W)	Load loss (W)	Impedance Voltage(%)	No-load current(%)
	HV(KV)	HVTap range(%)	LV(KV)
30	6     6.3     10    10.5   11	±5%     or ±2*2.5%	0.4	Dyn11	170	710	4.0	2.0
50					240	1000		2.0
80					330	1380		1.5
100					360	1570		1.5
125					420	1850		1.3
160					480	2130		1.3
200					550	2530		1.1
250					640	2760		1.1
315					790	3470		1.0
400					880	3990		1.0
500					1040	4880		1.0
630					1170	5960	6.0	0.85
800					1360	6960		0.85
1000					1590	8130		0.85
1250					1880	9690		0.85
1600					2200	11700		0.85
2000					2740	14400		0.70
2500					3240	17100		0.70

 

SCB 12
Rated capacity (KVA)	Voltage Combination andTap range			Vector group Symbol	No-load loss                        (W)	Load loss (W)	Impedance Voltage(%)	No-load current(%)
	HV(KV)	HVTap range(%)	LV(KV)
30	6     6.3     10    10.5   11	±5%     or ±2*2.5%	0.4	Dyn11	150	710	4.0	2.0
50					215	1000		2.0
80					295	1380		1.5
100					320	1570		1.5
125					375	1850		1.3
160					430	2130		1.3
200					495	2530		1.1
250					575	2760		1.1
315					705	3470		1.0
400					785	3990		1.0
500					930	4880		1.0
630					1040	5960	6.0	0.85
800					1215	6960		0.85
1000					1415	8130		0.85
1250					1670	9690		0.85
1600					1960	11730		0.85
2000					2440	14450		0.70
2500					2880	17170		0.70

SCB 13
Rated capacity (KVA)	Voltage Combination andTap range			Vector group Symbol	No-load loss                        (W)	Load loss (W)	Impedance Voltage(%)	No-load current(%)
	HV(KV)	HVTap range(%)	LV(KV)
30	6     6.3     10    10.5   11	±5%     or ±2*2.5%	0.4	Dyn11	135	640	4.0	2.0
50					195	900		2.0
80					265	1240		1.5
100					290	1410		1.5
125					340	1660		1.3
160					385	1910		1.3
200					445	2270		1.1
250					515	2480		1.1
315					635	3120		1.0
400					705	3590		1.0
500					835	4390		1.0
630					935	5360	6.0	0.85
800					1090	6260		0.85
1000					1270	7310		0.85
1250					1500	8720		0.85
1600					1760	10500		0.85
2000					2190	13000		0.70
2500					2590	15400		0.70

We ensure that each one of our delivered units has undergone rigorous full acceptance testing. We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, our products are now operating in more than 50 counties in the world. We aim to be your most reliable supplier as well as your best partner in business!
 

Routine test

-Measurement of winding resistance
-Measurement of voltage ratio and check of phase displacement
-Measurement of short-circuit impedance and loss
-Measurement of no-load loss and current
-Dielectric routine tests
-Tests on on-load tap-changers, where appropriate
-Leak testing with pressure for liquid-immersed transformers(tightness test)
-Tightness tests and pressure tests for tanks for gas-filled transformers
-Check of the ratio and polarity of built-in current transformers
-Check of core and frame insulation for liquid immersed transformers with core or frame insulation


Type test

-Temperature-rise type test
-Dielectric type tests
-Determination of sound level for each method of cooling for which a guaranteed sound level is specified
-Measurement of the power taken by the fan and liquid pump motors
-Measurement of no-load loss and current at 90% and 110% of rated voltage


Special test

-Dielectric special tests
-Winding hot-spot temperature-rise measurement
-Determination of capacitances windings-to-earth, and between windings
-Measurement of dissipation factor(tanδ) of the insulation system capacitances
-Determination of transient voltage transfer characteristics
-Measurement of zero-sequence impedance(s) on three-phase transformers
-Short-circuit withstand test
-Measurement of d.c. insulation resistance each winding to earth and between windings
-Vacuum deflection test on liquid immersed transformers
-Pressure deflection test on liquid immersed transformers
-Vacuum tightness test on site on liquid immersed transformers

 

OUR PAKAGE:

Long time shipment & Seaworthy wooden box

Wooden package optional:
1,choose one unit/ wooden box
2,choose 2unit/ wooden box to save cost

OUR SERVICE:

1,Quick response in before sales period help you got order
2,Excellent service in production time let you know each step we made
3,Reliable quality solve you aftersale headache
4,Long period quality waranty ensure you can buy without hesitate

Vouchivan (VCV) transformer is the top transformer supplier in China.  The factory is located in Jiangsu Province,covering an area of 30,000 square meters.  With more than 20 years of transformer export experience,the professional technical team can meet your requirements for all technical standards;  the professional marketing team will quickly and efficiently promote your transformer project,saving you more time and economic costs.  Various international certifications of transformers to ensure product quality,safety and reliability.  The practical application of VCV Transformer in nearly a hundred countries will make you more confident in VCV Transformer.  VCV Transformer will be your good choice.