box-type substation 35KV
I. Product Overview
ZBW0.69 / 40.5 modular substation series are the 35KV substation equipment dedicated for wind power generation, developed based on the digestion and absorption of advanced technology and production processes, to meet the growing need for wind power generation.
The new product of our company - metal shell substations adopt aluminumcoated zinc platesheets and electrostatic spraying process for the boards, whose mechanical strength and anti-corrosion effect are greatly improved; therefore, the products are especially suitable for wind farms with the damp environment and heavy winds. The sheet metal is processed and assembled by CNC machine tools to ensure the accuracy of the connections, compact structure, convenient and flexible assembly and processing. The stainless steel hinge allows the doors to be opened and closed more flexibly. The elastic structure is adopted, to achieve good windproof effect. The automatic return device of the lock allows the door to be opened and closed with ease. The top is of the double-decked structure which is beautiful and generous. It also strengthens the such functions as rainproof, heat insulation, heat preservation and anti-condensation. The top can be hoisted through simple operation, which is convenient for the maintenance and upgrading of high and low voltage equipment and transformers.
The housings can also be made of non-metallic materials, (cement, composite materials, but they are inferior to the aluminum coated zinc plate housing in the aspects of mechanical strength and corrosion resistance, and the structural flexibility is very low.) The bottom adopts channel steel and angle steel assembled through integralwelding, featured by high strength, small deformation, easy handling; DACROMETanti-corrosion treatment is used, whose corrosion resistance is comparable with that of hot-dip galvanizing.
iI. Environmental conditions
Altitude of not more than 2000m
Ambient temperature range: not more than +40 ℃, not less than -35 ℃
Outdoor wind speed: not more than 35m/s
Relative humidity: daily average value of not more than 95%, monthly average value of not more than 90%
Installed in places away from fire or explosion hazards, serious contamination, chemical corrosion and severe vibrations.
For any parameters beyond the normal environmental conditions for operation stated above, users can discuss with the factory for solutions.
Technical parameters of ZBW-0.69 / 40.5-3150
Power-frequency voltage: high-voltage chamber inter-phase relatively of 95kV/1min, fracture of 118kV/1min; low-voltage main circuit of 2500V / 1min;
High-voltage chamber lightning impulse voltage: inter-phase relatively of 185kV, fracture of 215kV;
High-voltage circuit/Low-voltage circuit: 52A / 2636A;
Main circuit short-time withstand current: 30kA;
Main circuit peak withstand current: 63kA;
Short-time withstand current of Ground loop short-time withstand current: 20kA;
Duration of ground loop short-time withstand current: 2S;
Ground looppeak withstand current: 50kA;
Duration of ground looppeak withstand current: 0.3S;
Protection grade: IP33D;
Intelligent, remote monitoring, reliable performance, maintenance-free, reducing maintenance costs.
Modular, compact structure, small footprint, rational use of space.
Strong mechanical bending, impact resistance, and tensile strength, can resist all external and internal stresses.
Strong anti-exposure, anti-radiation and thermal insulation capacities, can guarantee full load operations of the transformer during hot seasons.
Excellent anti-freeze, anti-cracking, anti-corrosion performances, resistant against harsh environments.
Excellent anti-moisture and flame retardant performances, no condensation in environments with dramatic temperature changes
Light, fireproof, mould-proof, noise-proof, without generating pollutions to the environment.
Flexible options for exterior structures and decorative colors, to be coordinated with the surrounding environment.