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บริษัท
บางกอกพัฒนา หม้อแปลงไฟฟ้า จำกัด
BANGKOK PATTANA TRANSFORMER CO.,LTD.
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TRANSFORMER
SPECIFICATION
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TECHNICAL DATA
RATING
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Capacity kVA
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Phase
|
Hz
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System Voltage
|
Vector Group
|
Tapping off
circuit tap changer
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|
Primary (V)
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Secondary (V)
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|
1500
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3
|
50
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22000
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400/230
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Dyn11
|
±2x2.5%
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Type of transformer
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Oil Immersed (
Hermetically Sealed )
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|
Cooling system
|
ONAN
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Standard
|
IEC 60076
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Installation on
|
Platform /
Concrete Foundation
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IMPEDANCE VOLTAGE & NO LOAD CURRENT
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% Impedance voltage at 75°C & tolerance
|
6.0 ± 10%
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% No load current & tolerance
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0.85 &+30%
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EFFICIENCY
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%EFFICIENCY AT
P.F.= 1
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|
25% Rated power
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50% Rated power
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75% Rated power
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100% Rated
power
|
|
99.13
|
99.09
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98.88
|
98.61
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VOLTAGE REGULATION
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VOLTAGE
REGULATION AT 100% LOAD
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|
AT P.F.= 0.8
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AT P.F.= 0.9
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AT P.F.= 1.0
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4.61
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3.81
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1.44
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QF-EN-04 (Rev.00)
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|
บริษัท
บางกอกพัฒนา หม้อแปลงไฟฟ้า จำกัด
BANGKOK PATTANA TRANSFORMER CO.,LTD.
|
|
TRANSFORMER
SPECIFICATION
|
|
TEMPERATURE RISE
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Maximum ambient temperature (°C) 40
|
40
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Average temperature rise of winding (°C) 65
|
65
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Average temperature rise of top oil (°C)
|
60
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WINDING
|
WINDING
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Primary
|
Secondary
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Material
|
copper
|
copper
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Full wave impulse withstand voltage (BIL) (kV)
|
125
|
30
|
|
Power frequency test voltage, 1 min (kV)
|
50
|
3
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BUSHING
|
BUSHING
|
Primary
|
Secondary
|
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Applied standard
|
DIN 42531
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DIN 42530
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Rated current (A)
|
250
|
3150
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Full wave impulse withstand voltage (BIL) (kV)
|
125
|
30
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Stud size, Metric (Ømm.)
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12
|
48
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TERMINAL ARRANGEMENT
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TERMINAL
ARRANGEMENT
|
Primary
|
Secondary
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Terminal conductor (sq.mm.)
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35-95
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240-500
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Diameter (Ømm.)
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7.5-12.6
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18.4-29.2
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Number of circuit
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1
|
4
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Conductors type
|
cable
|
cable
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OIL
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Type of oil
|
mineral oil
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|
Oil dielectric strength (kV)
|
≥
35
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Insulation resistance test by 2500 Vdc MEGGER
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Pri-Sec
|
Pri-E
|
Sec-E
|
|
(Megohm)
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≥
1000
|
≥
1000
|
≥
1000
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QF-EN-04 (Rev.00)
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