3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch...
Transcript of 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch...
![Page 1: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/1.jpg)
![Page 2: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/2.jpg)
![Page 3: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/3.jpg)
![Page 4: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/4.jpg)
![Page 5: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/5.jpg)
11
Intelligent LRS (GZYQ) introduction
![Page 6: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/6.jpg)
22Power ≤2000kWPower ≤2000kW Power Power >> 2000kW2000kW
GZYQ series: GZYQ series: used for soft starting of 3.3kV~ 15kV used for soft starting of 3.3kV~ 15kV synchronous or squirrel cage motorssynchronous or squirrel cage motors
Intelligent LRS (GZYQ) brief
![Page 7: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/7.jpg)
33
M
QS1
QF1
QF2
PC
M
PLC
VFD
A/D
RS
P I D
Work principle of LRS (GZYQ)
H.V. H.V. switch panelswitch panel
H.V. H.V. Neutral panelNeutral panel
Intelligent LRSIntelligent LRS
Take an example of GZYQ-3000/11-Y Take an example of GZYQ-3000/11-Y for 11kV,3000kW squirrel cage motor (neutral point can be open)for 11kV,3000kW squirrel cage motor (neutral point can be open)
![Page 8: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/8.jpg)
44
Resistance principle:
R=ρlS
Animation of intelligent LRS(GZYQ)
![Page 9: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/9.jpg)
55
Change in distance between fixed electrode and moving electrode leads to the change of liquid resistance
Animation of intelligent LRS(GZYQ)
![Page 10: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/10.jpg)
66
Single line diagram of GZYQ- (line side)△
H.V. switch Panel
LRS
Switch panel
M
QS1
QF1
QF2
Rs
![Page 11: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/11.jpg)
77
M
H.V. switch Panel
LRSH.V.
neutral panel
QS1
QF1
QF2
Rs
Single line diagram of GZYQ-Y (neutral side)
![Page 12: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/12.jpg)
88
M
Other load
B1
11kV
S d min=188 MVA
Sbe=16 MVA
S fh=5 MVAcos φ fh=0 . 9sin φfh=0 . 436
Ud%=7.5
load
power network diagram
Parameters required for calculation:
1、 network parameter
2、motor parameter
3、 load parameter
![Page 13: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/13.jpg)
990 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.82
n/nN
T/TN
U/UN=0.6
U/UN=0.7
U/UN=0.8
U/UN=0.9
U/UN=1
Torque and speed curve
T U∝ 2GZYQ torque & speed curveGZYQ torque & speed curve
![Page 14: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/14.jpg)
1010
1500
I( A )
10 20 30 40 500 t (s)
750
5 15 25 35 45
D.O.L. starting current curve
GZYQ starting current curve
Starting current: GZYQ vs D.O.L.
Comparison between GZYQ and D.O.L. start
![Page 15: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/15.jpg)
1111
Original torque & speed curveOriginal torque & speed curveRR11>R>R22>R>R33>R>R44ss
00
nn11
11
nnmm ssmm
Torque & speedTorque & speed curve: GZYQ vs reactor
Comparison between GZYQ and reactor
GZYQ torque & speed curveGZYQ torque & speed curve
![Page 16: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/16.jpg)
1212
Reference: Oxygen plant of Goyal Gases Reference: Oxygen plant of Goyal Gases
![Page 17: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/17.jpg)
1313
Reference: Oxygen plant of Goyal GasesReference: Oxygen plant of Goyal Gases
![Page 18: 3.imimg.com file3 M QS1 QF1 QF2 PC M PLC VFD A/D RS P I D Work principle of LRS (GZYQ) H.V. switch panel H.V. Neutral panel Intelligent LRS Take an example of GZYQ-3000/11-Y](https://reader034.fdocuments.net/reader034/viewer/2022050717/5e1420c6eebcb446f8581392/html5/thumbnails/18.jpg)
1414
Thank you !Thank you !