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