校验42357100042152二分路总馈DW80350083
5
f1总负荷∑PN4454KW2最大负荷Pmax75KW3整定电流值IZIQeKx∑Ie51751×425969435A4短路电流计算1U1000已知L50m查井下低压电网短路保护装置的整定细则附录三表5得RO0315ΩKMX00078ΩKM3×701×16型电缆的电阻电抗取1000A
R10315×005001575ΩX10078×005000375Ω∑R0021600157500374Ω∑X0068600037500724Ω2短路电流值Id
2
6902√003740072442357A
2
2
3校验42357100042153联络开关DW80350084
1总负荷∑PN4454KW2最大负荷Pmax75KW3整定电流值IZIQeKx∑Ie
6
f51751×425969435A4短路电流计算1U1000已知L50m查井下低压电网短路保护装置的整定细则附录三表5得RO0448ΩKMX00081ΩKM3×501×10型电缆的电阻电抗取1000A
R10448×00500224ΩX10081×005000405Ω∑R00216002240044Ω∑X0068600040500727Ω2短路电流值Id
2
6902√00440072740732A
2
2
3校验40732100040154联络开关DW80350086
1总负荷∑PN4454KW2最大负荷Pmax75KW3整定电流值IZIQeKx∑Ie51751×425969435A4短路电流计算
7
取1000A
f1U1000已知L50m
3×501×10型电缆的电阻电抗
查井下低压电网短路保护装置的整定细则附录三表5得RO0448ΩKMX00081ΩKM
R10448×00500224ΩX10081×005000405Ω∑R00216002240044Ω∑X0068600040500727Ω2短路电流值Id
2
6902√00440072740732A
2
2
3校验40732100040155耙车器分馈DW803501总负荷∑PN134KW2最大负荷Pmax114KW3整定电流值IZIQeKx∑Ie78661×238096A4短路电流计算1U1000已知L40m查井下低压电网短路保护装置的整定细则附录三表5
8
085
取400A
3×161×10型电缆的电阻电抗
f得RO137ΩKM
X0009ΩKM
R1137×00400548ΩX1009×00900036Ω∑R002160054800764Ω∑X006860003600722Ω2短路电流值Id
2
6902√00764007223287A
2
2
3校验328740082156DW80350C516掘进水泵
1总负荷∑PN75KW2最大负荷Pmax75KW3整定电流值IZIQeKx∑Ie600A4短路电流计算1U1000已知L350m查井下低压电网短路保护装置的整定细则附录三表5得RO0448ΩKMX00081ΩKM3×501×10型电缆的电阻电抗
R10448×03501558ΩX10081×035002835Ω∑R002160155801774Ω
9
f∑X006860028350097Ω2短路电流值Id
2
6902√01774009716995A
2
2
3校验169956002815
10
fC16下山变电所供电整定电流及短路开关计算
一变电所总开关BGP406计算进线一回路GZ141电流互感器比20052总功率∑Pe12177KW3最大负荷P
r