Top Sell Good Thermal Stability 3 Phase Dry Type Transformer

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: SDB
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000
• Usage: Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Rockwell
• Structure: Epoxy Casting Type
• Grade of Insulation for Heat Resistance: Grade F or Above
• Vector Group: Dyn11, Yyn0
• Low Voltage: 0.4kv\6kv
• High Voltage: 10/11kv/22kv/35kv
• Warranty: 12 Month
• Transport Package: Wooden
• Specification: IEC/ANSI/IEEE. BS
• Trademark: Rockwell
• Origin: China
• HS Code: 8504220000
• Production Capacity: 1000set/Month

Product Description

Product Description

 

Product description

The dry-type transformer is without oil, so it is no danger of burning and can be installed indoor as well as be entered into load center to meet the needs of high-density load development in modern metropolises.

Product Parameters

 

Rated capacity (kVA)	Voltage			Vector group	No-load Loss (W)	On-load Loss (W)	No-load Current (%)	Impedance Voltage (%)
	High voltage (kV)	HV tap range (%)	Low voltage (kV)
30	6 6.3 6.6 10 10.5 11	±5±2×2.5%	0.4	Dyn11	70	710	1.6	4
50					90	1000	1.4
80					120	1380	1.3
10					130	1570	1.2
125					150	1850	1.1
170					160	2130	1.1
200					200	2530	1.0
250					230	2760	1.0
315					280	3470	0.9	6
400					310	3990	0.8
500					360	4880	0.8
420					630	5880	0.7
410					630	5960	0.7
480					800	6960	0.7
550					1000	8130	0.6
650					1250	9690	0.6
760					1600	11730	0.6
2000					1000	14450	0.5
1200					2500	17170	0.5
760					1600	12960	0.6	8
1000					2000	15960	0.5
1200					2500	18890	0.5

 

Feature

This product possess such advantages as low no-load loss, no oil, flame retardation and self-extinguishing, moisture resistance, crack resistance, maintenance-free etc. can be used to replace all common dry-type transformers which now are used in many places. They can used in high buildings, commerce centers, subways, airports, train stations, enterprises and power plants, they are especially suitable for installing and using in such places where strict fireproof requirements, including anti-combustible and anti-explosive, must be meet.

Power-Cast transformers are available with specification as follows :
1. Rated capacity : 30~16000kVA
2. Rated HV : 6kV to 35 kV
3. Frequency : 50Hz or 60Hz
4. Cooling methods : ONAN or ONAF
5. Tapping Range : ±5%   ±2x2.5%   ±4x2.5%
6. Regulator way : off-circuit-tap-changing or on-load-tap-changing
7. Phase : Single Phase or Three Phases
8. Connection Symbol : Yyn0 or Dyn11 or others
9. The altitude of installation could not be over 1000m;environment temperature should be less than 40
10. Coil temperature rise : 1000K
11. Cooling methods : AN or AF
12. Crust prevention class : IP00, IP20, IP23
13. Insulation class : F class
14. Insulation level:
     10KV,power frequency withstand voltage 35KV,thunder impact voltage 75KV
     20KV,power frequency withstand voltage 50KV,thunder impact voltage 125KV
     35KV,power frequency withstand voltage 70KV,thunder impact voltage 170KV
15. Product Standard : GB1094    GB6450     GB/T10228     DIN42523        IEC726
16. Can run in 100% relative humidity or other harsh environment.
 

Company Profile

ROCKWILL GROUP is a high-tech enterprise invested by Rockwill Group Co. Ltdoriginally founded in 1980s and covers an area of 250,000sqm,specializes in developing,manufacturing and marketing power transmission and distribution products: power transformer, switchgears and its components,As well as new energy solution including EV chargers,energy storage.
ROCKWILL enjoys a worldwide reputation for its superior quality and service.In addition to the domestic market, the company's products so far have been exported to America,Australia,Central Europe, Eastern Europe, Southeast Asia,Middle East, Africa and other regions.
Besides a great variety of products, we also provide you with professional technical solutions and services.lf you have any problems, please feel free to contact us, and our technicians will tailor a complete solution for you.
We have always embraced the idea of developing together with customers and have always endeavored to provide users with safer, easier, greener and more energy-saving high and medium voltage electric equipments and components.

FAQ

Q1:Can l obtain samples?
A:Sure,the sampleis paid for

Q2:Can l use my own logo or design on the product?
A:Yes,we provide OEM/ODM A:services; Your logo and design can be made on theproduct.

Q3:Do you have a factory?
A:Yes,we have factories in both Lishui and Wenzhou.Welcome to visit our company and factory.We are a professional manufacturer that provides  OEM/ODM services to our customers.

Q4:What is the production capacity of your factory?
A:Our production capacity
Transformers 400~500 units/month
Switch cabinet Swichgear 300-500 units/month
Auto recloser 300 units/month

Q5:When will the shipment be made?
A:All of our products are out of stock and will be shipped within 30-60 days.