500kVA Bank Distribution Transformer

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Description

Unit

Value

1

Country of Manufacture

China

2

Type

Oil immersed

3

Standards

IEC

IEC60076

4

Rated capacity

KVA

500

5

Number of Phases

Single phase

6

Frequency

Hz

60

7

Normal voltage between phase at no load

i) H.V

Volts

23000

ii) L.V

Volts

2300

8

Vector Group

Ii0

9

Off - load tapping of primary winding

%

±2*2.5% ( 5 steps)

10

Rated current

i ) H.V

A

21.7

ii) L.V

A

217.4

11

Losses

(a) No load loss

Watts

860+15%

(c) Load loss

Watts

7280+15%

12

Impedance

%

4

13

Maximum temperature rise at C.M.R

Deg.

i ) Top oil / Winding

K

60/ 65

14

Power Frequency Voltage Withstand, 1min

i) H.V / L.V

kV

50/5

15

Lightning impulse insulation level of H.V.

KV

125

16

Insulation class

A

17

Insulation fluid

Mineral oil (No PCB)

18

Winding material (primary/secondary)

Copper

19

Ambient temp. Min/max.

℃

-10 ~ +40

20

Method of cooling

ONAN

21

Installation type

Pad Mounted

22

Dimensions

i )   Width & Depth & Height

mm

1430*1220*1300

23

Color

gray

24

Total Weight

kg

1460

25

standard fittings:

-Nameplate                -Oil level gauge

-Earthing terminal      -Lifting lugs

-Off-load tap changer   -HV & LV bushings

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