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Air Break Isolating Switches




Jaipuria Brothers Electricals Pvt. Ltd. manufacture gang operated air break off load, disconnecting switch with triple pole. Each pole consists of galvanized steel base, H.T. insulators as per B.S.S./I.S. non-ferrous knife and spring loaded contacts, arcing horns of adequate section to break magnetizing current of the transformers horizontal G.I. pipe 01 adequate length for phase separation, adequate length of G.I. pipes for operation from ground level and operating handle complete in both OFF and ON position. All ferrous parts are hot dipped galvanized and non ferrous parts are heavily tinned to withstand extreme weather. Manufactured in accordance with I.S.S., this product is suitable for horizontal vertical mounting.

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Sl. No. Air Break Isolating Switches available in Rocking Tilting Type & Rotating Type
1

11 KV 200 Amps 3 insulator

2

11 KV 200 Amps 2 insulator

3

11 KV 400 Amps 3 insulator

4

11 KV 630 Amps 3 insulator

5

11 KV 200 Amps 3 insulator rocking type air break switch with single action make and break (Horizontal Type)

6

11 KV 400 Amps 3 insulator rocking type air breaks switch with single action make and break "Horizontal Type"

7

11 KV 200 Amps air break switch with drop out fuse set 12 insulators

8

11 KV 400 Amps air break switch with dropout fuse set insulators

9

11 KV switch fuse unit 9 insulator with lighting arrestors

10

22 KV 200 Amps 3 insulator Vertical type DOUBLE STACK type

11

22 KV 400 Amps 3 insulator Vertical type DOUBLE STACK type

12

22 KV 200 Amps 3 insulator Vertical type DOUBLE STACK type

13

22 KV 400 Amps 3 insulator Vertical type DOUBLE STACK type

14

33 KV 200 Amps 3 insulator Vertical type DOUBLE STACK type

15

33 KV 400 Amps 3 insulator Vertical type DOUBLE STACK type


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Sl. No. Spare for Switches available from 11 KV to 33 KV
a

Male contact/moving contact blade

b

Female contact/Fix contact jaw

c

Tinned copper flexible jumper 200A/400A

d

MS jumper carrier

e

Back connector plate




Sl. No. Rotating Type Switch available from 22 KV to 33 KV
1

200 Amp. horizontal mounting

2

400 Amp. horizontal mounting

3

200 Amp./ 1400 Amp with earth switch


Guaranteed Technical Particulars for 11 KV Switch Air Break Type with Post Insulators




Sl. No. Particulars Technical Particulars
1

Manufacturer's type / Designation / Installation

11 KV 200, A Tilting type

2

a) Manufacturer's name and country of manufacture

M/s. Jaipuria Brothers Electricals Pvt. Ltd., Delhi

b) Works Address

F-16 -17, Ganga Vihar, Gokul Puri Shahdara Delhi

3

Standard (s) according to which the isolators are manufactured

IS 9921 / Part I to V

4

Maximum design voltage at which the isolators can operate

12 KV

5

Rated Frequency

50 Hz.

6

Rated Voltage

12 KV

7

Continuous current rating

200 A

8

Rated short time withstand current for one second

-

9

Voltage drop across terminals

As per relevant IS

10

Current density at the minimum cross section of

a) For copper parts ( Amp. /sq . Mm)

Less than 2.5

b) For aluminum parts (Amp. Sq/ mm)

Less than 1.0

11

Maximum temperature rise of following current carrying parts when carrying rated current continuously (deg. C) over an ambient of 50 deg . C Instead of 40 deg. C mentioned in relevant IS

25°C

12

Class (outdoor)

Outdoor

13 Insulation levels.
i) impulse withstand voltage (KV peak)
a) Across the isolating distance 85 KV
b) Phase to earth 75 KV
ii) Power Frequency withstand voltage (KV rms)
a) Phase to earth 28 KV
b) Across the isolating distance 32 KV
14 Minimum clearance in air (mm) center to center between phase to phase 600 mm
15 Minimum distance between insulators As per drawing to be approved
16 Minimum Isolating distance (in open position) 375 mm
17 Design & Construction :
i) Number of insulators Per Pole 3 nos.
ii) Number of breaks Per Pole Single
iii) Type of closing / opening mechanism Vertical
18 Height of contacts 110 mm
19 Cross section and number of fixed contact leafs 2 nos., 38 mm x 3.0 mm thick
20 Cross section of moving blade 32 mm x 5 mm
21 Size and numbers of spring used in fixed contact 4 nos, 16 SWG, 28 mm long, 15 mm OD & 6 turns
22 All Current carrying copper parts should be suitable to have current density less than 2.5 A/ sq. / mm
23 All Current carrying aluminum parts should be suitable to have current density less than 1.0 A/ sq/ mm
24 Operating pipe (handle & rod) 25 mm NB, 5.0 meter long med, class
25 Type of bearings Rocking type lever supported on side plates with self lubricated nylon rings
26 Base channels 75 mm x 10 mm x 100 mm long
27 Post Insulators
a) Type 11 KV, E-22, IS 2544
b) Name of manufactures Name of manufactures
c) Height of each insulator 245 mm
d) Tensile strength (Kg) 20 KN
e) Compressive strength 40 KN
f) Torsional strength in (Kg m) 340 MN
g) Cantilever strength upright 9 KN
h) Power frequency dry flash over voltage (KV) rms As per relevant IS
i) Power frequency we flash over voltage (KV) rms As per relevant IS
j) Impulse flash over voltage (positive wave ) (KV) peak As per relevant IS
k) Impulse with stand voltage (KV) peak 75
l) Power frequency puncture voltage (KV) rms As per relevant IS
m) Visible discharge voltage level (KV) rms 9
n) Cree page distance 300 mm (min)


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