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DROPOUT FUSES

description

Drop Out Fuse (D.O.F) are fuse carriers of fiber glass tube with heavily tinned non ferrous metal parts at both the ends. The brush type phosphorous bronze contacts provide high pressure multi-line connection, wiping and cleaning action. The drop out fuses are widely used for system protection as a secondary back-up against faults or troubles. Installed at high-voltage side, they are able to provide protection in case the trouble is persistent.


Sl.NoMake dropout fuses
16.11 KV DROPOUT Fuse 'D type
17.11 KV DROPOUT Fuse CHANNEL type
18.22 KV DROPOUT Fuse DOUBLE STACK CHANNEL type
19.22 KV DROPOUT Fuse DOUBLE STACK "D type
20.33 KV DROPOUT Fuse DOUBLE STACK CHANNEL type

Sl.NoMake horn gap fuse
21.11 KV HORN Gap Fuse
22.22 KV HORN Gap Fuse
23.33 KV HORN Gap Fuse




Sl.NoSpares for dropout fuses available from 22 KV to 33 KV
1.SRBP tube only
2.Fiber Glass tube only
3.SRBP tube with Metal fitting on both ends
4.Fix Top Contact/L Contact
5.Fix bottom Contact

Guaranteed Technical Particulars for 11 KV Drop out Fuse

S. NoParticularsTechnical Particulars
1.Manufacturer's type / Designation / InstallationJBEPL
2.Manufacturer's name and country of manufactureJaipuria Brothers Electricals Pvt. Ltd., Delhi
3.Standard (s) according to which the relevant standardIS 9385/ (Part I/II)
4.Operating Voltage11 KV
5.Rated Voltage12 KV
6.Continuous current100 A
7.Type of countingAs per drawing to be approved
8.Rated frequency50 Hz
9.Insulation levelsAs per relevant IS
10.1One minute Power frequency withstand across isolating distance of fuse base32 KV
10.2One minute Power frequency withstand voltage to earth and between poles28 KV
10.3Standard Impulse withstand (1.2/50 micro seconds) to earth and between poles (peak)85 KV
10.4Standard Impulse voltage across isolating distance of fuse base75 KV
11.Temperature rise limit (for copper contacts)(deg. C)25 deg.C
12.Temperature rise for terminals in (deg. C)40 deg. C
13.Type of fuse / ratingExpulsion type, 1.5 A
14.Material of fuse barrelFibre glass tube 25 mm OD
15.Fuse tube ID15mm
16.Rated breaking capacityAs per relevant IS
17.Fuse base top current carrying partBrass / GM
18.Environmental protection of current carrying partNA
19.Fuse base bottom assemblyBrass / GM
20.Fuse carrier top assemblyBrass / GM
21.Fuse Carrier bottom assemblyAs per drawing to be approved
22.Material of springPhosphor Bronze / SS
23.Material of contacts (incoming)Copper / Glass / Bronze / GM
24.Details of terminal connections (outgoing)Aluminium connector for ACSR Dog conductor
25.Anticorrosive Property (Fe parts)Hot dip Galvanized electroplated
26.Anticorrosive Property (non-ferrous parts)Silver / tin plated
27.Applicable standardIS 9385/ (Part I/II)

33 KV Drop out Fuse




1.MakeJBEPL
2.Drawing No.JB-1007
3.Rated Voltage33 KV
4.Highest System Voltage36 KV
5.Rated Current100/200A
6.Minimum Air Clearance between: 
a)Poles1300mm
b)Live parts and Earth500mm
7.Mounting positionVertical22KV
8.33KV Solid Core/22KV post Insulators shall be fitted & each insulator confirm to following specifications:33KV22KV
i)Make**
ii)No. of unit per insulator stack12
iii)P.C.D76mm76mm
iv)Maximum shed diameter108mm101 mm
v)Minimum total creepage distance860mm430mm
vi)Over all height of the insulator509mm254mm
vii)Highest system voltage36KV24KV
viii)Tensile strength5455 Kg3060 Kg
ix)Torsional strength115 mkg70 mkg
x)Compressive strength7000 Kg4600 Kg
xi)Flash over voltage (Dry)145 KV90 KV
xii)Flash over voltage (Wet)100KV60KV
xiii)Dry one minute power frequency withstand voltage95KV80KV
xiv)Wet one minute power frequency withstand voltage80KV55KV
xv)Weight of the insulator14.5 Kg6.1 Kg
xvi)1.2/50 microsecond wave Impulse voltage200KV125KV
9.Weight of D.OFuse110 Kg Approx

New Delhi, Delhi

Manufacturer

2 Produtcs

JAIPURIA BROTHERS ELECTRICALS PVT LTD

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