20kv, 35kv, 400kVA on Load Voltage Regulation Sz11 Oil-Immersed Transformer with

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Three
• Model NO.: SZ11
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: Ring
• Coil Number: Autotransformer
• Type: Oil-Immersed
• Coil Structure: Toroidal
• Frequence: 50Hz/60Hz
• Rated Capacity: 30-2500kVA
• Input Voltage: 10kv,11kv,15kv,22kv,30kv
• Rated H.V.: 35kv
• Rated L.V.: 0.415kv
• Insulation Level: as Per IEC Standard
• Temperature Rise (W): 60-65K
• Core Material: Silicon Steel
• Transport Package: Wooden Case
• Specification: copper, epoxy resin
• Trademark: Xianghu
• Origin: Zhejiang, China
• HS Code: 8504231200
• Production Capacity: 200 Piece/Pieces Per Month
• Package Size: 1400.00cm * 1160.00cm * 1720.00cm
• Package Gross Weight: 2680.000kg

Product Description

 

Product Description

On load tap changer transformer plays an important role in power system.It can not only stabilize the load center voltage, but also connect the power grid, adjust load current, improve reactive power distribution etc.Its basic principle is to lead out several taps from the coil on one side of the transformer, and switch from one tap to another through OLTC, without cutting off the load current.So as to change the effective number of turns and achieve the purpose of voltage regulation.

On load voltage regulation technology of transformer is widely used in distribution system, and also in step-up transformer of power plant. At present, almost all the large capacity transformers in the power system adopt on load voltage regulators,It is also equipped with a perfect low-voltage distribution network structure and sufficient reactive power compensation capacity to ensure  the safe operation of the power grid and meet the requirements of customers for power quality.

Product features
1.No load voltage regulating transformer need to adjust the tap of high-voltage side only when the power is cut off, 
so as to change the ratio of the transformer to regulate the voltage at the low-voltage side.Its regulation range is small, generally within ± 5%, It can only be adjusted once or twice a year.Most transformers in power system are no-load tap transformers.

2.The on load tap changing transformer has a special switch, which can change the tap position without power off (with load).Its voltage regulation range is large, generally more than 15% or even up to 30%, and it can be adjusted  automatically for several times a day.

3.No excitation voltage regulation refers to no-load voltage regulation,which can be adjusted only when the transformer is off.On load tap chaning transformer can change the voltage by changing the tap position when it is on running.

4.OLTC switch has the advantages of frequent on-off, no spark and long service life.The traditional trigger circuit of power electronic switch has the 
problem of electrical isolation.The application of optical fiber communication technology to the medium and high voltage trigger control system
 can effectively solve the problem of high and low voltage electrical isolation.

sz11 three phase oil immersed transformer series parameters

 

Rated capacity(kVA)	High voltage(kV)	High voltage  tapping range(%)	Low voltage(kV)	Vector Group symbol	No-load Loss (kW)	On-load Loss (kW)	No-load Loss (kW)	On-load Loss (kW)	Short-circuit resistance (%)	No-load Current (%)
					Model 11		Model 18
3150	35 38.5	±2 × 2.5 ±3 × 2.5 ±4 × 2.5	6.3 10.5	Yd11	3.04	23.08	2.4	21.9	7	0.72
4000					3.62	27.36	2.9	25.9		0.72
5000					4.32	31.35	3.5	29.7		0.68
6300					5.25	35.06	4.2	33.3	8	0.68
8000					7.2	38.48	5.8	36.5		0.6
10000					8.7	45.32	7.0	43		0.6
12500					10.08	53.87	8.0	51.1		0.56
16000					12.16	65.84	9.7	62.5		0.54
20000					14.4	79.52	11.5	75.5		0.54
25000					17.02	94.05	13.6	89.6	10	0.45
31500					20.22	112.86	16.2	106.4		0.4

 

The digital transformer is based on intelligent sensors and the Internet of Things technology to achieve a full range of real-time and accurate perception of transformer operation status. At the same time, it has perfect protection, measurement, control and monitoring functions, realizing the integration of "management, control and operation" of transformers with "high efficiency, energy conservation, safety and environmental protection". In the future, it will provide reliable digital basic support for the realization of 3D model reproduction, fault expert diagnosis and early warning, energy Internet, big data and other business applications of transformers operating on the network.

 

When placing an order, please furnish us with the essential technical parameters as detailed below

1. kV Rated Voltage:

2. Rated Voltage:

3. Combination of three meticulous levels, providing precise phase alignment and accuracy;

4. Rated Output and the associated precise level (VA).

Company Profile

 

     Zhejiang Xianghu Technology Co., Ltd.is a company specializing in the production of high and low voltage switch power transmission and distribution equipment and high, low voltage electrical components, one of the professional production enterprises, the production of all fully insulated and fully sealed inflatable cabinet, intelligent solid insulation ring main unit, outdoor high voltage cable branch box, box-type substation, etc. Product quality is stable, reliable, It is deeply trusted and approved by the customers. 

     Manufacturing of the main products are 10kv High tension Mutual inductor,10 kv transformer, YBW box-type substation, KYN61-40.5, KYN28A - 24, KYN28A - 12, XGN2-10, HXGN-10 high voltage switchgear, XGN ring net cabinet, SHSRM inflatable ring main unit, SHSG solid ring main unit, MNS, GCS, GCS, GGD, XL and other transmission and distribution equipment. 

     For a long time also for all kinds of metallurgy, shipbuilding, electric power, mining, and intelligent buildings, high-rise buildings, hospitals, schools and other industries to provide high quality power transmission and distribution of complete sets of equipment and electrical control equipment. The company has a strong technical force, sophisticated technology and sophisticated testing methods, and the products sell well across the country. Deeply appreciated and praised by the broad masses of users.

PRODUCT WORKSHOP

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Packaging & Shipping

Contact Us

Q1: Are you a trading company or manufacturer?

A1: We are a distinguished manufacturer with 7 years of expertise in producing high and low voltage power transformers, substations,vacuum circuit breakers, and various power equipment.

Q2: Do you accept customized service?
A2: Absolutely! We offer OEM/ODM services, allowing us to customize products with your logo. Our expert technical and quotation teams are dedicated to crafting a project that perfectly aligns with your drawings and specifications.

A3: What is your MOQ?
A3: Our minimum order quantity is just 1 piece.

Q4: How long is your delivery lead time?
A4: Delivery time varies based on your specific product requirements and quantity. Generally, we can fulfill orders within 5 to 10 working days.

Q5: How do you solve quality problems?
A5: Please provide detailed photos of any quality issues. Our dedicated technical and quality inspection teams will thoroughly analyze the situation to offer a satisfactory resolution within 2 days.

 

Q6: What is the price of shipping?
A6: Shipping costs depend on the delivery port, resulting in price variations.

Q7: What are your payment terms?
A7: We require a 30% T/T payment in advance, with the remaining 70% due before shipment. We also accept West Union and L/C.