Drop Out Fuse,High Voltage Drop Out Fuse,High Voltage Fuse Manufacturer,Drop Out Fuse Manufacturer,India

Dropout Fuses

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.

S. NO	Make 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

S. NO	Make horn gap fuse
21.	11 KV HORN Gap Fuse
22.	22 KV HORN Gap Fuse
23.	33 KV HORN Gap Fuse

S. NO	Spares 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. No	Particulars	Technical Particulars
1.	Manufacturer's type / Designation / Installation	JBEPL
2.	Manufacturer's name and country of manufacture	Jaipuria Brothers Electricals Pvt. Ltd., Delhi
3.	Standard (s) according to which the relevant standard	IS 9385/ (Part I/II)
4.	Operating Voltage	11 KV
5.	Rated Voltage	12 KV
6.	Continuous current	100 A
7.	Type of counting	As per drawing to be approved
8.	Rated frequency	50 Hz
9.	Insulation levels	As per relevant IS
10.1	One minute Power frequency withstand across isolating distance of fuse base	32 KV
10.2	One minute Power frequency withstand voltage to earth and between poles	28 KV
10.3	Standard Impulse withstand (1.2/50 micro seconds) to earth and between poles (peak)	85 KV
10.4	Standard Impulse voltage across isolating distance of fuse base	75 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 / rating	Expulsion type, 1.5 A
14.	Material of fuse barrel	Fibre glass tube 25 mm OD
15.	Fuse tube ID	15mm
16.	Rated breaking capacity	As per relevant IS
17.	Fuse base top current carrying part	Brass / GM
18.	Environmental protection of current carrying part	NA
19.	Fuse base bottom assembly	Brass / GM
20.	Fuse carrier top assembly	Brass / GM
21.	Fuse Carrier bottom assembly	As per drawing to be approved
22.	Material of spring	Phosphor 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 standard	IS 9385/ (Part I/II)

33 KV Drop out Fuse
1.	Make	JBEPL
2.	Drawing No.	JB-1007
3.	Rated Voltage	33 KV
4.	Highest System Voltage	36 KV
5.	Rated Current	100/200A
6.	Minimum Air Clearance between:
a)	Poles	1300mm
b)	Live parts and Earth	500mm
7.	Mounting position	Vertical
8.	33KV Solid Core/22KV post Insulators shall be fitted & each insulator confirm to following specifications:	33KV	22KV
i)	Make	*	*
ii)	No. of unit per insulator stack	1	2
iii)	P.C.D	76mm	76mm
iv)	Maximum shed diameter	108mm	101 mm
v)	Minimum total creepage distance	860mm	430mm
vi)	Over all height of the insulator	509mm	254mm
vii)	Highest system voltage	36KV	24KV
viii)	Tensile strength	5455 Kg	3060 Kg
ix)	Torsional strength	115 mkg	70 mkg
x)	Compressive strength	7000 Kg	4600 Kg
xi)	Flash over voltage (Dry)	145 KV	90 KV
xii)	Flash over voltage (Wet)	100KV	60KV
xiii)	Dry one minute power frequency withstand voltage	95KV	80KV
xiv)	Wet one minute power frequency withstand voltage	80KV	55KV
xv)	Weight of the insulator	14.5 Kg	6.1 Kg
xvi)	1.2/50 microsecond wave Impulse voltage	200KV	125KV
9.	Weight of D.O. Fuse	110 Kg Approx

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