I. Overview
YDS type withdrawable low-voltage distribution cabinet is suitable for power distribution, conversion and motor control in distribution systems with the AC 50Hz, rated working voltage of 380 V, rated current up to 4000A and below in power plants, petrochemical, metallurgy, textile, high-rise building supply industry and large-scale automated power plants, petrochemical plants requiring computer interface.
II. Features:
a) by utilization category, it can be divided into: incoming cabinet, the feed cabinet (PC), motor control cabinet (MCC) and reactive power compensation cabinet.
b) according to the system capacity and the size of switches, basic dimensions of the cabinet: four sizes of widths: 300mm、400mm、600mm、800mm two sizes of depths: 800mm、1000mm; height:2200mm。
c) horizontal bus laid out on the roof, this series has a rated current: 1000A、1250A、1600A、2000A和2500A。
d) vertical bus of feed cabinet or motor control cabinet has a rated current: 630A、1000A和1250A。
e) The bus capacity and the corresponding specifications of this product series:
Current rating: 630A 800A 1000A 1250A 1600A 2000A 2500A
Busbar specifications: TMY 40×1050×10 50×1060×10 2(40×10)60×1080×10 2(50×10)80×10100×10 2(60×10)100×10120×10 2(60×10)2(80×10) 2(100×10)2(120×10)
f) horizontal busbars rated short-time withstand current capability ：50kA
g) vertical bus short-time withstand current capability of feed cabinet and control cabinet ：50kA。
h) main switch breaking capacity of the incoming cabinet ：50kA。
i) breaking capacity of feed cabinet and control cabinet protection switch ：50kA。
j) feed cabinet and control cabinet loop number : 1～24
k) functional unit types: Plug-in, movable, and drawer-type
l) functional unit specifications :240mm、400mm、420mm、900mm、960mm、1200mm。
m) enclosure protection class ：IP3X
n) product service environment :3
o) circuit breakers that can be installed:
frame-type circuit breaker/ACB: AE、CW1、HSW1、F1S, etc.
MCCB (Moulded Case Circuit Breaker):D、NS、CM1、HSM1, etc.
MCB (miniature circuit breaker) : DZ47、NC100LS,etc
p) contactors that can be installed with: LC、B、A、CJX1,etc
q) isolation switches that can be installed with: QSA、QP、GL,etc