Isolation transformer is used for low-voltage distribution system, isolate load from power, reject stray common mode and dc voltages, ground loop potentials, electromagnetic interference (emi) and radio frequency interference (rfi) from
Dielectric strength: l-l, l-g 4000vac/50hz/60s. Free of arcing breakage
I se is less than 65db (to be measured at the point 1 meter away from the reactor horizontally) .
Protection class: ip00 or as customer required.
Insulation class: h
Environment exists without gas, steam, chemical deposition, dust or dirt that will affect transformer¡¡¥s insulation seriously, explosive or corrosive medium is not allowed.
Standard: iec726:1982 dry power transformer , gb6450-86(equivalent to iec726:1982)
Standard carton or wooden case to the custom made transformer
Our products got certificate of ISO9001,ISO14001 and OHSAS18001. And 18 low voltage products get national certificate of CCC. Also our products get quality testing report from China Quality Certification Center(CQC). Our customers include urban distribution network, power station, transformer substation, oil, chemical, railway and big construction companies. And products export to America, Brazil, Peru, Kenya, Ethiopia, India, Myanmar, Vietnam etc. We sincerely welcome all friends from domestic and overseas to come to cooperate and develop together.
Dry-type transformer.Power range is:100-20000-30000 kVA.
Durable to instantenous temperature changes and also to short-circuit.
100% protected from moisture.It cant get fired has an ability to extinguish the fire.
Does not contain any Halogen or Nitrogen.Price changes due to power range.
Introduce:
This product has advantages of low no-load losses, oil-free, flame self-extinguishing, moisture, crack-resistant and maintenance free. Now the entire place which used the ordinary dry type transformer can be replaced by amorphous one. It can be used for high-rise buildings, commercial centers, subways, airports, railway stations, factories and power plants, especially suitable for flammable, explosive high-demand places.
Performance:
- low-energy saving
- high corrosion resistance
- strong ability to withstand short circuit
- low noise
- low temperature and long service life
Application area:
- altitudeâ?¤1000m
- environmental temperature -25+40
- indoor use
USA-type Transformer Substation
Box-Type Transformer Substation
ZG(F)S series prefabricated substation, also called USA-type transformer substation, is an new-mode complete set of power distribution equipments that absorbs foreign advanced technology and design concept. It is also can be used in our national power girds, including these distribution systems of industrial and mining enterprises, high-rise buildings, residential areas, stations, port terminals, especially suitable for alteration of urban and rural power grids, not only reduces engineering investment and occupying area, but also shortens the installation period.
Products features
Novel design, innovative structure, smaller volume
The high voltage overload switch, plug-in fuse and backup protection fuses are placed in transformer insulating oil tank, thus substations volume becomes smaller whose occupying area is only 1/3-1/5 of normal products.
Fully enclosed, fully insulating, safe and reliable
Transformer oil tank is fully enclosed structure without conservator. The high voltage inlet wire adopts connections of elbow-type cable plug and high voltage bushing, live parts sealed within the insulator, shape a fully insulating structure. Terminal surface is zero potential which can guarantee human safety.
Advanced protection principle, economic and reliable, easy to operate
Using full range protection mode of double fuse in high voltage side and supplemented by low voltage undervoltage protection to make operation reliable and easy. The body of transformer is used with S11,S13 series, its winding adopts Dyn11,with characteristics of neutral point not drifting, good lightning performance, low loss, low noise, etc.
European-type Transformer Substation
Box-Type Transformer Substation
Product introduction:
XBF1,YBM series combination substation, is a complete set of equipment making the optimal combination for high voltage switch, power transformer and low voltage switch.
European-type transformer substation is with such advantages complete sets of strong, small footprint, low investment, easy installation and maintenance, attractive appearance, strong weather resistance, etc. Our company can design semi-submerged or buried whole type substation based on special conditions, so as to avoid blocking the line of sight, electromagnetic interference.
Normal operational conditions
a, environment temperature:-25C - +40
b, altitude less than 1000 meters;
c, relative humidity less than 90% (+ 25 ), to allow short-term up to 100%;
d, installation place without risk of fire, explosion, chemical corrosion and severe shock
e ,discuss with us for special operational conditions
Product structure and appearance
Three-phase transformers are used to convert the available 3-phase mains voltage into any load voltage.
To cater for the wide range of application areas involved,these transformers are essentially available in
the same kinds of designs as the single-phase transformers, e.g.
Three-phase dry-type transformer:
separate winding version
Three-phase series transformer:
autotransformer winding version
Three-phase safety, isolating, mains or
insulating transformer: separate winding version
In terms of how the 3 coils are connected, there are various options available and each of these provides
the transformers with specific properties. The vector group code is composed of the following elements:
The upper-case letter indicates the higher-voltage winding
(the highest voltage in terms of operation).
The lower-case letter indicates the lower-voltage winding.
The brought-out neutral is indicated by means of N or n
(depending on voltage level).
â?¢ The distinctive number indicates the phase angle of the lower voltage
in relation to the higher voltage (distinctive number multiplied by 30).
The following winding connection options are available
Delta: D, d
Wye (or star): Y, y
Zigzag: Z, z
Example: Dyn5
Higher-voltage winding is delta-connected.
Lower-voltage winding is star-connected with a brought-out neutral.
The lower voltage lags behind the higher voltage by 150�° (5 x 30�°).
Unless specifically requested otherwise, the transformers are configured with a double-star connection
and a brought-out neutral (vector group Yyn0); for autotransformers the vector group is YNa0.
Our three-phase transformer range includes all our standardised types for the 25 30.0 kVA performance range and a frequency of 50/60 Hz
