HYB(W)-12/0.4 Outdoor box     type transformer substation    (steel)
Product Details


General

HYB(W)-12/0.4 box type transformer substation is the compact distributing equipment comprising high voltage switchgear, distributing transformer, low voltage distributing equipment and electric energy measurement equipment, etc, which are arranged into an organic whole according to the certain circuit scheme. This equipment is the complete transformer substation used for receiving and distributing electric energy at three-phase AC system of rated voltage 10/0.4kV in the following fields such as urban public distributing, tall building, residual area, industrial and mining enterprise, oil fields, temporary construction for project. Its technical performance completely meets the requirements stipulated in the standards ZBK 4001-89 and SD 320-89.

Basic technical parmeters

Item

On the side of

high voltage

Transformer

On the side

of voltage

Rated working capability
50-1250kvA
Rated working voltage10kV10/0.4kV0.4kV
Rated working current400-630A
630-2500A
Rated short-circuit breaking current50kA
25-4kA
Rated marking current40 kA

Rated thermal stability current(virtual

value)

16kA/2S
15、30kA/1S
1 min power frequency withstand voltageTo earth 42kVDry type 28kV2.0kV,2.5kV

Between open

contacts 48kV

Oil immersed

35kV


Liqhtning impulse withstand voltageTo earth 75kV75kV

Between open

contacts 85kV



Protection levelIP3XIP2XIP3X
NoiseOil immersed transformer 55dB

Dry type transformer 65dB