Prefabricated Transformer Substation YBM27-40.5/12kV

Prefabricated Substation, desgined and manufactured by ZHEBAO Electrical.

● Model: YBM27-40.5/12kV

● Name: intelligent prefabricated transformer substation

● Technical Parameters
Serial number Performance target Unit Primary electrical appliances Transformer Secondary appliances
1 Rated voltage KV 40.5 35/10 12
2 Rated capacity KVA 1600/25000
3 Rated current A 50-500 100-1200
4 Rated break current KA 25 50
5 Icw (short time endurance current) KA/ seconds 25/2 20/3
6 Rated peak tolerable current KA (peak) 66 66
7 Rated closing current KA 50 50
8 Power frequency withstand voltage KV/ minute Phase to ground/interphase 80/1 85/1 42/1
Isolated fracture 88/1 48/1
9 Lightning Impulse Voltage Resistance KA (peak) Phase to ground/interphase 170 200
Isolated fracture 195
10 DC withstanding voltage of 10kV connecting cable KV/ minute One phase/other phase+ ground 25/5
11 Protection Level of Shell Open type Open type IP33
12 noise level DB Less than 55