ZBW(YB)17-10 Series HV/LV Prefabricated (American type)Substation
Applications
The combined American box change is a transformer body, high
voltage load switch, fuse and other components.
It is placed in the transformer oil tank. Because it is immersed in
oil, the volume of the components is greatly reduced, the structure
is more compact, and the installation is convenient and flexible.
Fully insulated, fully sealed structure, safe and reliable, easy to
operate, maintenance free. Widely used in residential quarters,
high-tech centers, factories and mines, airports, stations,
schools.
YB series Pre-Installing Cabinet Subsation:
The covering material are: colored steel plate, cold rolled plate,
stainless steel, glass-fabric special cement, aluminum alloy and
cop per aluminum zinc plate. The insulating medium of medium
voltage switch device: can be SF 6, air and vacuum. Transformer can
be oil and dry type. Low voltage compartment main switch can be
universal breaker, intelligent breaker type.
Ambient Condition:
1. Ambient temperature: -25℃ ~+40℃ ;
2. Altitude: ≤1000 m;
3. Wind pressure: ≤700 Pa;
4. Humidity: daily average ≤95%, monthly average ≤90%;
5. Pollution degree: IV;
6. Earthquake intensity: 8 degree.
Tests
Below are the tests conducted by Varelen before delivery. Other
tests required by clients can also be done accordingly.
Insulation resistance
Resistance of all windings
Check voltage ratio and vector group
No-load test at rated frequency and rated voltage
Impedance test
Withstand voltage test
Induced over-voltage withstand test
Partial discharge measurement
Product Features
1.Compact structure, small size, convenient installation and
flexibility;
2.Fully insulated, fully sealed structure, safe and reliable,
maintenance-free, and reliable protection of personal safety;
3.The high-voltage side is protected by a double fuse, wherein the
fuse of the plug-in fuse is a double-sensitive fuse (temperature,
current), and the backup fuse is a current-limiting fuse, which
reduces the running cost;
4.high-voltage incoming line adopts cable connector structure,
fully insulated, safe and reliable, and easy to operate;
5.can be used for both ring and terminal, conversion is very
convenient, and the reliability of power supply is improved.
6.The transformer is a three-phase three-column or three-phase
five-column structure. The iron core adopts a step joint process or
a coil core process, which has low noise, low loss, short circuit
resistance and strong overload capability.
7Using the special process of vacuum drying and vacuum oiling, our
company will extend this process to 110kV products to 10kV
products, which provides a strong guarantee for improving product
quality.
8. The cabinet can be treated with anti-corrosion design and
special paint treatment according to the requirements of the
operating environment. It has the functions of “three preventions”,
namely anti-condensation, anti-salt spray and anti-fungal, and can
meet the anti-corrosion requirements under high temperature and
high humidity environment.
| Technical parameters |
| Rated voltage | 10/0.4kv(HV/LV) |
| Maximum working voltage | 12(HV) |
| Rated frequency | 50Hz |
| Rated capacity | 50-1600kVA |
| Withstand voltage(1 min working) | 35kV |
| Lightning impulse voltage | 75kV |
| Cooling method | oil immersion self-cooling |
| High voltage | 50kA |
| backup fuse switching on current |
| on-off current of the plug fuse | 2.5 |
| environment temperature | -35℃ to 40℃ |
| Coil temperature | 62 ℃ |
| No load voltage | ±5% ±2x2.5% |
| Noise level | 50db |
| Protection level | IP43 |
WHY Hengfengyou
1. One of the drafters of the National Standard Mine Flameproof Mobile Substations (GB/T 8286-xxxx ), which will replace the existing national standard (GB/T 8286-2005
) and it was submitted for trial in Beijing.
2. +20 years experience R&D team, derived from a 60 years of history
transformer manufacturer in Changsha, Hunan, China since 1956.
3. Full range of transformer types with customized functions are available.
4. CE & ISO certificated.
Sales Manager Sasha/shicheng Whatsapp :+8615898873365
