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Bildal
Electricals Pvt. Ltd.
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Isolating
Transformer for Airport
Lighting System |
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APPLICATION |
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Isolating
transformers are used in Air Field Lighting system and provide
isolation between the primary high voltage series circuit and
low voltage secondary circuit. The primary of all transformers
are connected in series and fed by constant current regulator
. secondary feeds the individual Airport Runway light.
Isolating Transformers are used to maintain continuity of high
voltage primary circuit incase one or more lamps are not in working
order and to maintain the supply of 20 Amps. From the 6.6 amps.series
circuit or vice - versa alternatively to suppl 6.6 Amps. From
8.3Amps . in the series circuit .
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SPECIFICATION |
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IS: In compliance with IS- 12290- 1987
FAA : In
compliance with AC- 150 / 5345-47.
IAF : In
compliance with CRI/ Ale/ 107 of 1989
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CONSTRUCTION |
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The
Toroidal magnetic core made from cold rolled silicon steel, grain
orienred lamination of low loss quality . The core is insulated
by nylon cap or polyster paper .
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The
primary and secondary windings are of standard quality super enamailed
copper wire . |
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The
primary is a single core made from annealed, tinned , copper wire,
EPR insulated and PCP sheathed, suitable for 5000V operations
.One secondary, cable end is moulded with plug and other with
receptacle as per Customers ,s requirement
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The
secondary is two core made of annealed , tinned , copper wire,
ERP insulated and PCP sheathed . Theb secondary cable end is moulded
with receptacle as per reqirement of the customers .
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The
isolating transformer is epoxy casted and cured under vaccum. |
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The
Epoxy casted assembly is rubber moulded to with - stand outdoor
exposure , immersion in water or direct burial in earth containing
concentration of oil, acids and alkalies .
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QUALITY
CONTROL |
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Bidal
has complete in house facility to test incoming materials which
go in the manufacture of the isolating transformers. In the process
quality control is supervised by highly qualified and experienced
engineering staff . each and every isolating transformer leaving
the factory is thoroughly tested for routine and type tests .
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PERFOMANCE |
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Thousands
of Bidal make isolating transformers are satisfactorily working
in the field for years .
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PRIMARY
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SECONDARY
AMPERES
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SECONDARY
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WATT
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AMPERES
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POWER
FACTOR
PERCENT
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EFFICI-
ENCY
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FULL
LOAD
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SHORT
CIRCUITED
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LOAD
OHMS
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MAX
OPEN
CIRCURED
VOL-RMS
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TYPE
NO.
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(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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45
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6.6
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95
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80
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6.53-6.7
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6.6-7.1
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1.15
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25
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BE-1
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45
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20.0
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95
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80
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6.53-6.7
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6.6-7.1
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1.15
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25
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BE-2
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45
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8.3
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96
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81
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6.47-6.73
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6.66-
6.94
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1.03
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13
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BE-3
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65
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8.3
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96
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84
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6.47-6.73
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6.66-
6.94
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1.49
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19
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BE-4
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65
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6.6
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95
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80
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6.53-6.70
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6.6-7.1
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1.60
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30
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BE-5
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100
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6.6
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95
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85
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6.53-6.70
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6.6-7.1
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2.44
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70
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BE-6
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100
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20.0
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95
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85
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6.53-6.70
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6.6-7.1
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2.44
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70
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BE-7
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200
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8.3
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96
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88
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6.47-
6.73
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6.66-
6.94
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4.60
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60
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BE-8
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210
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6.6
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95
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90
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6.53-6.70
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6.6-7.1
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4.82
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100
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BE-9
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210
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20.0
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95
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90
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6.53-6.67
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6.6-7.1
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4.82
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100
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BE-10
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300
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6.6
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95
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90
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19.8-20.2
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20.0-22.0
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0.90
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70
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BE-11
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300
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20.0
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95
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90
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19.8-20.2
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20.0-22.0
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0.90
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70
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BE-12
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300
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6.6
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95
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90
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6.53-6.67
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6.6-7.1
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8.25
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135
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BE-13
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300
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20.0
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95
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90
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6.53-6.67
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6.6-7.1
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8.25
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135
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BE-14
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500
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6.6
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95
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90
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19.8-20.2
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20.0-22.0
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1.35
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70
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BE-15
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500
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20.0
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95
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90
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19.8-20.2
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20.0-22.0
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1.35
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70
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BE-16
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