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   XM Series Fuse Cutout
 
 
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◆FUSE CUTOUT OUTLINE

  Drop-out fuse cutout and load switching fuse cutout are of outdoor used high voltage protective device,Tobe connected with incomin-g feeder of distribution transformer or distribution lines,it mainly protect transformer or lines from short circuit and overload,and on/off loading,current,Drop-out fuse cutout is composed of insulate insulator supports and fuse tube,static contacts is fixed on two sides of insulator support and moving contact is installed on two ends of fuse tube,Fuse tube is composed of inside arcexting tube.Outer phenolic compound paper tube or epoxy glasstube,Load switching fuse cutout provides enfored elastic auxiliry contacts and arc-extinguishing exclosure switching on-off loading current.
  At normally working via fuselink tightened the fuse tube is fixfed to form up of close position.In case system occure faults,fault current result result in fuse melt immediately and take piece electric are,which let arc-extinguishing tube being heated and fexplode a lot of gas,Th-os will produce high pressure and below of the are along with tube. After fuselink melt melt moving contact has no tightened strength again,mecganismis locked and fuse tube drop out, Cutout now is in open position,When it needs to switch off during cutout loading,operat-or shall via insulating operating bar pull the moving contact,atits beginning main contact and auxiliary static contactic contactedst-ill, Whiling pulling the auxiliary contact is separated between auxiliary contacts there occur electric arc and the arc will be lengthene-d in arc-extinguishing enclosure gap and meanwhile arc-exting explode gas to blow off the arc during current passing zero.
◆TECHNICAL PARAMETERS AND DIMENSIONS

No. Description
1 Nut
2 Long Bolts
3 Mounting BracketⅠ
4 Mounting Bracket Ⅱ
5 Porcelain Insulator
6 Spring Washer
7 One-piece channel
8 Fuse tube
9 Lower Socket
10 Lower contacts
11 Conneector
12 Upper Contacts
13 Attachment hooks
14 Operation Ring

  Extra-Heavy-Drty Overhead-Pole-Top Style,rated 25kv nominal,27kv maximum,125kvBIL,100amperes continuous, 12.000 amperes intrrepting RMSasymmetrical,11 inches(279mm)minimum leakage distance to ground.
  Catalig Number Suffix"-D" provides for the inclusion of parallel-groove connectors each accommodating No,6 solid through No,2st randed copper or aluminum in one groove;No,2 solid through 250kc mil stranded copper or ailminum,or 4/0ACSR in the other groove.

◆MAIN TECHICAL PARAMETERS
Type XM-1 XM-1
Rated Voltage(kV) 12-15 12-15
Rated current(A) 100 200
Breaking current(A) 6300 10000
Impulse voltage(kV) 110 110
Power-frequeny withstand voltage(kV) 42 42
Creepage distace(mm) 230 230
Weight(kg) 7.5 8
Dimensions(CM) 41×31×12.5 41×31×12.5
Type HXM-2 HXM-2
Rated Voltage(kV) 15-27 15-27
Rated current(A) 100 200
Breaking current(A) 6300 12500
Impulse voltage(kV) 125 125
Power-frequeny withstand voltage(kV) 45 45
Creepage distace(mm) 400 400
Weight(kg) 6.5 7
Dimensions(CM) 49×31×12 49×31×12
Type HXM-3 HXM-3
Rated Voltage(kV) 12-15 12-15
Rated current(A) 100 200
Breaking current(A) 6300 12500
Impulse voltage(kV) 125 125
Power-frequeny withstand voltage(kV) 45 45
Creepage distace(mm) 380 380
Weight(kg) 4.3 4.8
Dimensions(CM) 46×25×12 46×25×12
Type XM-4 XM-4
Rated Voltage(kV) 15-27 15-27
Rated current(A) 100 200
Breaking current(A) 6300 12500
Impulse voltage(kV) 125 125
Power-frequeny withstand voltage(kV) 45 45
Creepage distace(mm) 330 330
Weight(kg) 9 9.5
Dimensions(CM) 49×31×12.5 49×31×12.5

Main techical parameters
Type XM-5 XM-5
Rated Voltage(kV) 12-15 12-15
Rated current(A) 100 200
Breaking current(A) 6300 12500
Impulse voltage(kV) 125 125
Power-frequeny withstand voltage(kV) 45 45
Creepage distace(mm) 330 330
Weight(kg) 8.8 9.3
Dimensions(CM) 51×31×12.5 51×31×12.5
Type XM-6 XM-6
Rated Voltage(kV) 24-27 24-27
Rated current(A) 100 200
Breaking current(A) 6300 10000
Impulse voltage(kV) 150 150
Power-frequeny withstand voltage(kV) 65 65
Creepage distace(mm) 500 500
Weight(kg) 11 8.5
Dimensions(CM) 51×32×17 51×32×17
Type XM-7 XM-7
Rated Voltage(kV) 33-35 33-35
Rated current(A) 100 200
Breaking current(A) 6300 8000
Impulse voltage(kV) 170 170
Power-frequeny withstand voltage(kV) 70 70
Creepage distace(mm) 600 600
Weight(kg) 13.2 14
Dimensions(CM) 59.5×32×16 59.5×32×16
Type XM-8 XM-8
Rated Voltage(kV) 33-35 33-35
Rated current(A) 100 200
Breaking current(A) 6300 8000
Impulse voltage(kV)&, amp;, lt;, /FONT> 170 170
Power-frequeny withstand voltage(kV) 70 70
Creepage distace(mm) 750 750
Weight(kg) 17 18
Dimensions(CM) 72×20×17 72×20×17

Main techical parameters
Type XM-9 XM-9
Rated Voltage(kV) 15-27 15-27
Rated current(A) 100 200
Breaking current(A) 6300 12500
Impulse voltage(kV) 125 125
Power-frequeny withstand voltage(kV) 45 45
Creepage distace(mm) 355 355
Weight(kg) 8.8 8.8
Dimensions(CM) 45×34.5×12 45×34.5×12
Type XM-10 XM-10
Rated Voltage(kV) 12-15 12-15
Rated current(A) 100 200
Breaking current(A) 6300 12500
Impulse voltage(kV) 110 110
Power-frequeny withstand voltage(kV) 42 42
Creepage distace(mm) 230 230
Weight(kg) 7.5 8
Dimensions(CM) 41×31×12.5 41×31×12.5
Type XM-11 XM-11
Rated Voltage(kV) 33-35 33-35
Rated current(A) 100 200
Breaking current(A) 6300 8000
Impulse voltage(kV) 170 170
Power-frequeny withstand voltage(kV) 70 70
Creepage distace(mm) 870 870
Weight(kg) 8.5 9
Dimensions(CM) 63×31×15 63×31×15
Type XM-12 XM-12
Rated Voltage(kV) 33-36 33-36
Rated current(A) 100 200
Breaking current(A) 6300 8000
Impulse voltage(kV) 170 170
Power-frequeny withstand voltage(kV) 70 70
Creepage distace(mm) 820 820
Weight(kg) 26 28
Dimensions(CM) 66×33.5×17 66×33.5×17
Note:
*Add connector cuffix per table1.
*Dimension shown is for’C’suffix(name"B"bracket.)
Dimension is 53/16 for’B’suffix fuerte extended bracket.
'D’suffix only.
Table 1
  Connector suffix  
Type connector wire size Catalog no.suffix
Parallel groove Number solid cu.thru 250KC will standed cu. or4/0 acsr -D
Eye bolt No.6 solid cu.thru2/0 standed cu.or.al. -J
Eye bolt No.6 solid cu.thru 250KC will standed cu.or 4/0 acsr , -M
Table 2
Style Rat, ing Leakage distance to gro.Minum inches
Catalog KV.Nom BIL Amps
Extra heavy duty RTF 25 150 100 -D
uttra heavy duty RTF 25 150 100 -J
Heavy duty RTF 14.4 150 100 -M


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