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Arcing devices
7/1MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]
MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]/2
GENERAL Requirements for arcing devices:
Distribution of voltage • This protective device has the job of effecting an even distribution ofvoltage along the string, which can be accomplished by using a ring in-stead of a horn in some instances.
Stress distribution • Along with the tower and the cantilever, the device should produce a stressdistribution which will carry away the arc as fast as possible from the in-sulators.
Stability • Arcing devices are also responsible for keeping stable the burning arc soas to protect the insulators while at the same time preventing the arc frombeing deflected to the conductor.
Base point • The base point of the arc should be located in a manner that direct radia-tion onto the insulator is avoided thus preventing damage to the insulatorand the arc should also burn as far away from the insulator as possible.
Single path system • The arc should be fed on one side so that it may be safely displaced to thenominal burning point.
Contamination • Even dirt flash-over between the insulator discs must be handled by the arcing device.
Corona • The stress distribution caused by the protective device should be such that itor any other fitting may not form a corona at the voltage level at which it isused.
Interchangeability • The arcing device should be interchangeable without having to dismant-le the string.
Insulator types • The arcing device which is used must be suitable for use with the various insulator types.
Installation Contrary to the standard execution of the arcing accessories it is not possibleto state a firm rule for the installation arrangement of the accessories on the in-sulator string.The installation depends on the type of strings, single or double strings, in linedirection or perpendicular, suspension, tension strings or V-strings and also onthe shape of the tower and the possible movement of the strings in case of windloads.In each case a review of the installation arrangement of the accessories is use-ful and the decision should be made with special regard to the conditions ofdistribution system and line as well as to the type of tower construction.
Short circuit current The short circuit capability depends on the material section, but with forked ty-pes the short circuit current parts into two branches allowing for smaller sec-tions than normal.
Connection Connections to the hardware acc. to DIN 48068 and ÖNORM E4199. Other connections are available.
Fixing device Fixing device is included.
Hot dip galvanising Steel hardware is hot dip galvanised in Mosdorfer’s own plant.Galvanising can be done in accordance to national and international stan-dards.
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Arcing devices
7/3MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]
4725.014725.054725.07
4725.024725.064725.08
4726.054726.074726.214726.224726.14
4726.064726.08
Figure 1
Figure 2
Figure 3
Figure 4
DiscInsulators:Porcelainor Glass
Arcing horns for disc type insulatorsArcing horns fig. 1 and 3 are used for insulator strings up to 380 kV as the upper device.Arcing horns fig. 2 and 4 are used for insulator strings up to 110 kV as the lower device.
Also available with other dimensions and balls.
Figure forInsulator
a HeightHorn-
Ø
4710
Arcing horn for longrod insulators type Mwith fixing according DIN 48068 pin11
a Height
Shortcircuit
current kA
130 105
Horn-Ø
12 9 0,25
Other dimensions on request.
Dimensions in mm
Fig. 1
Fig. 2
Fig. 3
Fig. 4
460500550
460500550
250275440250250
250275
150200190
75105
82
190170365190200
10582
161616
161616
1616242022
1616
161616
161616
1616352530
1616
1,001,101,30
1,001,101,20
0,700,802,501,001,25
0,700,70
Shortcircuit
current kA
Dimensions in mm
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Arcing devices
MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]/4 1
Single path arcing rings for disc insulatorsArcing rings figure 1 are used for insulator strings upto 380 kV as the upper device.Arcing rings figure 2 are used for insulator strings upto 110 kV as the lower device.Arcing rings figure 3 are used for insulator strings upto 150 kV as thelower device.
Figure forInsulators
Outs.Ø
451455457459457527529532451455457459451455455459
185185185185230265265280100100100100100100100100
16202224222224281620222416202224
––––––––––––
40404040
b HeightMat.Ø
BallØ
Figure 2
Figure 3
16253035303035501625303516253035
Shortcircuit
current kA
Dimensions in mm
Other heights on request.Connecting straps for shunts on request.Special designs for double strings are available.
Single path arcing rings for disc insulatorsArcing rings with balls Ø-60 are used for insulator strings upto 220 kV, withball-Ø 80 upto 380 kV (500 kV)
forInsulators
270270270280280280310310310310310310
484848484848606060606060
100100100100100100100100100130130130
606060808080808080808080
222428222428222428222428
303550303550303550303550
Short cir-cuit cur-rent kA
Dimensions in mm
320 mm Ø and upto
H 195 mm
Disc-insulators upto
280 mm Ø and
H upto170 mm
Fig. 1
Fig. 2
Fig. 3
L.-Nr. Weightkg
Material: Steel, hot dip galvanised
L.-Nr.
Material: Steel, hot dip galvanised
Weightkg
Arcing devices
7/5MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]
Single path arcing rings for longrod insulatorsArcing rings figure 1 are used for insulator strings upto 380 kV as theupper device and upto 110 kV as lower device.Arcing rings figure 2 are used for insulator strings upto 150 kV as the lower device.
Single path intermediate arcing ringsfor longrod insulatorsarcing rings used as an intermediate device for insulator strings upto 380 kV.
forInsulators Inside
ØMat.Ø b
332360332410
368454368396
Height
16162222
50506060
Shortcircuit
current kA
Dimensions in mm
Dimensions in mm
Connecting straps for shunts on request.Other dimensions on request.
Other dimensions on request.
Fig. 1
Fig. 2
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Arcing devices
MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]/6 1
Dimensions in mm
Arcing ringsfor composite insulators.
Various types of arcing device are available for composite insulators. Accordingto requirements they will be adapted with regard to the voltage level, fixing possibilities, etc.In addition to the normal fixing at ball and socket eyes or double eyes a fixing on-to the end-fitting of the insulators is also possible in certain cases.
Fork type arcing ringsfor longrod and composite insulatorswith fixing according DIN 48 068Arcing rings are used for insulators strings upto 380 kV as the upper deviceand upto 110 kV as the lower device.
forinsulators Inside
Ø HeightArmØ
RingØ b
Short cir-cuit cur-rent kA
Other dimensions on request.
205205205205205205205205240240280
165175205165165205237250165315240
2020202228282828282828
1616162020202020202020
320320320320320320320320360360395
Dimensions in mm
40404040
4750.90104750.60/04750.91034750.52/30
LP60, LP75LG60, LG75, LP85LG85, LG95
LG105
3,853,904,254,40
Fork type intermediate arcing ringsfor longrod insulatorswith fixing according DIN 48 068Arcing rings are used for insulators strings upto 380 kV as an intermediate device.
forinsulators Inside
Ø HeightArmØ
RingØ b
Short cir-cuit cur-rent kA
Other dimensions on request.
205205280280
310330420480
20202020
16161616
320320395395
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Arcing devices
MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]/8
28282828282828
48484848484848
460460500500500500500
200250210240280340110
Dimensions in mm
254040
4750.90114750.52/7/24750.9012
LG60, LG75LG60, LG75LG85, LG95
2,423,954,15
Fork type arcing rings with ballsfor longrod insulatorswith fixing according DIN 48 068Arcing rings are used for insulator strings upto 220 kV as the lower device.
Fork type arcing ringsfor longrod and composite insulatorswith fixing according DIN 48 068Arcing rings are used for insulator strings upto 380 kV as the lower device.
forinsulators Outsi-
de Ø HeightArmØ
TubeØ b
Short cir-cuit cur-rent kA
Other dimensions on request.
400400440440440440440
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Arcing devices
7/9 1MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]
Fork type arcing ringsfor longrod and disc insulatorsfixing with 2 bolts M12 at 32 mm centresArcing rings are used for insulator strings upto 380 kV as the upper device andupto 110 kV as the lower device.
forinsulators Inside
Ø HeightArmØ
RingØ b
Short cir-cuit cur-rent kA
Other dimensions on request.
202820
162016
335335470
150150110
254025
2,504,003,17
205205340
Dimensions in mm
4750.90134750.90044750.9857
LP60, LP75, LP85LP60, LP75, LP85
K 230 – 290
Fork type arcing rings with ballsfor longrod and disc insulatorsfixing with 2 bolts M12 at 32 mm centresArcing rings are used for insulator strings upto 220 kV as the lower device.
forinsulators Inside
Ø HeightArmØ
RingØ b
Short cir-cuit cur-rent kA
Other dimensions on request.
280310390
161616
320320395
25/4025/4025/40
3,403,604,20
205205280
Dimensions in mm
4750.52/344750.52/354750.9104
LP60LP75, LP85
LP 95, LP 105
Fork type intermediate arcing ringsfixing with 2 bolts M12 at 32 mm centresArcing rings are used for insulator strings upto 380 kV as an intermediate device.
forinsulators Inside
Ø b HeightRingØ
202020
ArmØ
Short cir-cuit current
kA
Other dimensions on request.
Material: Steel, hot dip galvanised
L.-Nr. Weightkg
Arcing devices
MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]/10
Fork type arcing ringsFixing with 2 bolts M12 at 32 mm centresArcing rings are used for insulator strings upto 380 kV as the lower device.
2228222228
4848484848
500500500560560
210210110210210
3040303040
6,307,106,107,407,90
440440440500500
Dimensions in mm
4740.95514740.95524740.95534750.52/284740.9651
LG60,75/LP 60,75,85LG60,75/LP60,75,85
K 230 – 290LG/LPLG/LP
forInsulators Outsi-
de Ø HeightArmØ
TubeØ b
Short cir-cuit cur-rent kA
Other dimensions on request.
Arcing rings racket typemade from tubes single or double
Adjustable arcing deviceadjustable horns and rings for all purposes
Bundle ringsupto 380 kV
All arcing devices with connecting straps for shunts on request.