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ZGS9-10 model (American model) combinated transformer:
 
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characteristics of products:
 
small dimension, compact structure: about one third of the combined transformer substation of the same volume; whole insulation, whole airproof structure; needless of insulation distance, guaranteeing personal safety; holding characteristics of insulating switch: high voltage wire adopts cable tie-in, able to operate 200A current; complete protection; adopts double-fuse (plug-in fuse and in support protective fuse) protection, plug-in fusing thread holds double-agility; adopts ¡÷/Yo tieing method and three-phase & five-column structure: high quality of voltage, neutral point no drifting, heatless transformer body, low noise, good thunder resistance capability; both used in ring net and teminal with convenient conversion; strong overloading capability: 2 hours for allowable overloading 2 times, 7 hours for overloading 1.6 times; defending grade is IP33: the transformer body adopts advanced antisepsis technology, used in various abominable environment.
sequence number
items
parameters
1
rated voltage£¨kV£©
10/0.4
2
rated frequency£¨Hz£©
50
3
rated volume£¨kVA£©
100,125,160,200,250,315,400,
500,630,800,1000,1250,1600
4
working frequency compression resistance high voltage load switch
42/48
(kV/lmin) high voltage side
35
  low voltage side
2.5
5
thunder impact compression resistance£¨kV£©
75
6
rated short time tolerant current£¨kA/2s£©
16
7
max. fusing current of in support protection fuse£¨kA£©
50
8
tapping scope of non-load regulating tapping switch
¡À5%(¡À2*2.5%)
9
allowable rising temperature£¨K£©
65
10
level of noise£¨dB£©
¡Ü50
 
ZBW combined transformer substation:
 
characteristics of structure:

1. The main structure adopted cold pricking board with special treatment or double deck airproof structure of materials of aluminum & zinc-sprending board of anti-corrosive capability, or nonmetal materials, simulated indoors operation environment, provided guarantee for the liable operation of the first and second system, and this structure makes the transformer realize dampproof, dustproof and dewproof capabilities;

2. adapted both in cable turnover wire and turnover wire built on stilts;

3. The transformer body adopted Mu or Pin layout method of three rooms: high voltage room, transformer room, and low voltage room with compact structure to save space in maximum; among the rooms of the transformer substation there are small seperate rooms insulated by insulating board;

4. The accessory of high voltage mainly adopted versatility air compression load switch, vacuum load switch, SF6 load switch, plus structure of fuse combination electric appliances as the main switch protecting transformer;

5. The low voltage room is able to adopt screen-type, drawing out type, faceplate type, standard switch tank or adopted non-standard structure according to customers' requirements; compensate according to 10-20% of volume of the transformer or according to customers' requirements;

6. Generally the transformer chooses oil-immersing low loss electric power transformer or epoxy dry transformer. According to customers' requirements;

7. Adopted two methods: national aeration and forced aeration to make the aeration and cooling perfect. The fan has temperature control device, automatically starting and closing according to the set temperature to make sure of fully load operation of transformer.
parameters of technical capability:
sequence number
name
unit
high voltage side
low voltage side
transformer
1
rated frequency
Hz
50
50
50
2
rated voltage
KV
10
0.4
10/0.4
3
rated volume
KVA
   
50-1250
4
rated current
A
400-630
100-2000
 
5
rated short opening current
KA
31.5
   
6
rated short closing current
KA
50
   
7
rated stable current
KA
50
   
8
lmin working frequency compression resistance
KV
to ground42£»fracture48
2.5

28(dry)/30£¨oil£©

9
thunder impact compression resistance
KV
to ground75£»fracture85
 
75
10
protection grade of transformer shell  
IP43
11
level of noise
dB
55£¨oil£©/65£¨dry£©
 
cable branch transformer:
characteristics of functions:

outdoors whole insulated, whole airproof, free of maintenance; dustproof, dampproof, preventing flood, antisepsis; agile combination, methods of connection can reach 8 circuits; able to connect with short fault indicator and quikly find out the fault of circuitry;

small dimension, compact structure, convenient to be installed; save cable, reduce wire loss, improve the liability of supplying power; painting green according to Munse 6G standard with beautiful surface; according with ANSI C57.12.28 standard.
parameters of technical capability:
specifications
200A£¨branch net£©
600A(branch net)
rated voltage
15kV
15kV
rated current
200A
600A
rated short time tolerant current
16kA
40kA
1 minute working frequency compression resistance
42kV
42kV
15 minutes direct current compression resistance
53kV
78kV
thunder impact compression resistance£¨BIL£©
95kV
125kV
min. corona starting voltage
11kV
19kV
 
 
 
ADD:East End,Zhengyang Road,Chengyang District,QingDao
Tel:(86 532)7731888 7731645 ¡¡Fax:(86 532)7731139 ¡¡Email:Sales@qdhuadong.com