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Three-Pole
Load Break Switches: |
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ABS Load Break Switches and Isolators for
voltages ranging from 3.3kv to 36 kv offers a high technical
standard and economy over the years for the switchgear manufacture
with dependability, reliabilty and versatility.
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Main
Features: |
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High Operating reliability
• Simple maintenance and inspection
• High dynamic & thermal strength
• Tested in CPRI as per IS-9920 (= IEC 265)
• Special tubular arc-chutes
• Current interruption without visible arcs.
• Simple driving
• mechanism |
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Triple
Pole Load Break Switch: |
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he salient feature of ABS Load Break
Switch is its ability to permit load connections even
under a short circuit condition without danger to the
operating personnel. It complies with IEC, VDE, &
IS standards. A high speed(snap action) make and break
ensures a fast switching action and the very special
design of arc chutes having excellent extinguishing
properties for both high and low currents, suitability
of mounting in horizontal or vertical plane etc. prove
the versatility of these switches.
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Off-Load
Isolator: |
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Due to the compact design of individual
cubicles, and the feasibility of mounting the switches
in different directions, economy in space is achieved
, with ample scope for future extension. The triple
pole load break switch can be used for switching of
transformer feeders, overhead lines, capacitor banks,
cable feeders, and ring mains. For protection against
circuits H.T.Fuses can be offered with the switch.
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| TECHNICAL
DATA: |
TKL
3 12/630 |
TKL
3 12/1250 |
TKL
3 24/630 |
| Rated Voltage |
12 kv |
12 kv |
24kv |
| Rated Frequency |
50Hz |
50Hz |
50Hz |
| Rated Current |
630 A |
1250A |
630A |
| Rated Peak Current |
80KA |
62.5KA |
36KA |
| Rated Short time current/sec. |
31.5KA |
26.2KA(3 sec) |
26KA |
| Rated Making Current |
80KA |
62.5KA |
36KA |
| Rated Breaking Current |
630A |
630A |
630A |
| Impulse Voltage,Wave
shape 1.2/50MS: |
| i.To Earth |
75KV |
75KV |
125KV |
| ii.Between Poles |
75KV |
75KV |
125Kv |
| iii.Between Open Contacts |
85Kv |
85kv |
145kv |
| Power Frequency
Test Volatage: |
| i.To Earth |
35kv |
35kv |
55kv |
| ii.Between Poles |
35kv |
35kv |
55Kv |
| iii.Between Poles |
45kv |
45kv |
75kv |
| Breaking of Capacitance
Load |
50A |
50A |
50A |
| Closed Loop breaking Cos=0.31ND |
630A |
630A |
630A |
| Rated Transformer off
load breaking capacity |
120A |
120A |
120A |
| Rated Line Charging breaking
capacity |
90A |
90A |
90A |
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| Dimensions:
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| i.Between Poles(Centres)mm |
150-210 |
150-210 |
175-250 |
| ii.Between open Contacts |
140 |
140 |
235 |
iii.Between live parts
and earth mm
Making Time 35 sec.
Arc Duration 5-20 M.sec |
130 |
130 |
210 |
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| Description:
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Type Reference |
TKL 3 load switches in
11 kv 400/630 A can be offered with pole distances of
150mm or 210mm in the following configuration.
1.Basic on/off switch(Quick make, Quick Break)
2.Switch with mechanical tripping and shunt trip assembly
3.Switch with fuse base
4.Switch with fuse base and mechanical tripping feature
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D
D-SA-AA
D-Uh
D-UH-SA
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Note: Any accessory
,if required should be specified in addition to the above
type reference.
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