35 KV oil immersed transformer
·Product introduction
Compared with S9 series, the no-load loss of S11 series products is
reduced by 30% on average, and no-load current is 70-80% lower. The
iron core is made of import high magnetic conductivity, low loss,
cold-rolled high-quality silicon steel sheet, which reduces the
no-load loss and saves energy significantly. It shows
characteristics of high safety and reliability, advanced structure,
small dimension, light weight, low noise, low temperature rise,
anti-corrosion and reliable anti-leakage measures to prevent oil
leakage.
·Service conditions
1. The maximum ambient air temperature shall not exceed 40℃, and
the minimum shall not below - 25℃;
2. The altitude shall not exceed 1000m. If special customized
transformers and low-voltage components are used, the altitude can
reach 4000m;
3. The vertical inclination is no more than 5°, and no violent
vibration and impact;
4. The air humidity is not more than 90% (+ 25℃);
5. No gas and conductive dust that will seriously affect the
insulation of transformer, no explosion hazard and corrosion of
electrical components;
6. Outdoor wind speed shall not exceed 35m /s.
7. If service conditions beyond the above, specially customized
product is available.
·Structural features:
1. The low-voltage winding is made of full-section copper foil and
by special low-voltage winding machine with f-grade insulation.
2. The winding end is sealed and casted with resin, and then shaped
by curing to prevent moisture and fouling.
3. Temperature control device: the transformer is equipped with
BWDK series signal thermometer, which is embedded in the upper part
of the low-voltage coil. The temperature-measuring components can
automatically detect and display the working temperature of the
corresponding phase coil, and alarm and trip at over temperature .
4. Insulation grade: the insulation grade of transformer can be
divided into grades.
Note: Due to continuous product improvement, the dimensions provided in
this sample are for reference only. If necessary, our company can
design and produce according to user requirements. Please contact
the company in time.
| Main technical parameters |
| Main circuit rated voltage(V) | .......................... | Ac 400 (600) |
| Rated voltage of auxiliary circuit (V) | .......................... | Ac 220/380 (400) dc 110/220 |
| Rated frequency (Hz) | .......................... | 50(60) |
| Rated insulation voltage(V) | .......................... | 690(1000) |
| Rated current(A) | The level of bus | ≤6000 |
| Rated short-time bus withstand current (kA/1s) | .......................... | 50,80 |
| Rated peak withstand current of bus (kA/0.1s) | .......................... | 105,176 |
Power frequency test voltage (V/1min) | main circuit | 2500 |
| Auxiliary circuit | 1760 |
bus | Three-phase four-wire system | A,B,C,PEN |
| Three-phase five-wire system | A,B,C,PE,N |
| Protection grade | .......................... | IP30 |
·Order instructions:
1. The customer needs provide main parameters of the transformer
(input and output voltage, capacity, loss, etc.)
2. Other customer requirements
Package Details:
