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參數資料
| 型號： | 12KVOEFMA20 |
| 廠商： | COOPER INDUSTRIES |
| 元件分類： | 保險絲 |
| 英文描述： | ELECTRIC FUSE, 20A, 12000VAC, 12000VDC, 40000A (IR), INLINE/HOLDER |
| 文件頁數： | 1/1頁 |
| 文件大小： | 70K |
| 代理商： | 12KVOEFMA20 |
For product Data Sheets, visit www.cooperbussmann.com/products/datasheet.asp
84
Medium Voltage Fuses
British Standard IEC fuses for use in oil filled distribution
switchgear
OEFMA
Specifications
Description:
BS 2692-1 medium
voltage fuses for use on the primary
circuit of three-phase 50Hz trans-
formers in oil field switchgear. Fitted
with powerful pyrotechnic striker pin.
Ratings:
Volts: — 3.6-24kV
Amps: — 6.3-200A
IR: — 25-50kA (See Catalog Number table below)
Agency Information:
Fuses comply with IEC 60282-1,
BS2692-1 and ESI Standard 12-8. 7.2 and 12kV fuses tested
at highest system voltage and approved by the UK Electricity
Association approvals panel.
Featues and Benefits
Physically sized for replacement of British Standard fuse
links
Typical Applications
Medium Voltage BS designed equipment
Catalog Numbers
Transformer
Transformer Primary Voltage
kVA
3.3kV
6.6kV
11kV/ESI 12-8 Ref.
13.8kV
200
3.6kV OEFMA 63
12kV OEFMA 31.5
12kV OEFMA 25/01
15.5kV OEFMA 16
250
3.6kV OEFMA 80
12kV OEFMA 40
12kV OEFMA 25/—
15.5kV OEFMA 20
300/315
3.6kV OEFMA 100
12kV OEFMA 50
12kV OEFMA31.5/02
15.5kV OEFMA 25
400
3.6kV OEFMA 125
12kV OEFMA 63
12kV OEFMA 40/—
15.5kV OEFMA 31.5
500
3.6kV OEFMA 160
12kV OHFMA 71
12kV OEFMA 50/03
15.5kV OEFMA 40
630
3.6kV OEFMA 200
7.2kV OEFMA 100
12kV OEFMA 63/—
15.5kV OEFMA 50
750/800
3.6kV OLGMA 250
7.2kV OHGMA 125
12kV OHFMA 80/04
15.5kV OEFMA 63
1000
3.6kV OLGMA 250*
7.2kV OHGMA 140
12kV OHGMA 90**/05
15.5kV OHGMA 71
1250
—
7.2kV OHGMA 160*
12kV OHGMA 100/—
15.5kV OHGMA 90
1600
—
12kV OLGMA 125*/—
15.5kV OLGMA 100*
This Catalog Number selection table is based upon the following criteria:
1. Withstand against magnetizing inrush current taken as 12 times full-load current for 0.1 second.
2. Withstand against 150% permissible overload current. Recommendations marked with asterisks have the following significance:-
*Limited to permissible overloads of 130%.
**Permits use of a 12kV OHFMA 80A fuse with a 100kVA transformer where permissible overload does not exceed 130%.
3. For 6.6kV systems, 12kV fuses are recommended where possible in the interests of standardization.
4. Wherever possible, 10 inch long FO1 fuses are offered rather than equivalent 14 inch FO2 types.
5. The above recommendations are not generally applicable to transformers feeding motor circuits with starting currents in excess of the transformer full load current. In this event, please consult
Cooper Bussmann.
Catalog Numbers
Basic Cat.
Dimensional
Breaking
Number
Voltage
Ref. BS 2692
Amp Ratings
Capacity (kA)
OEFMA
3.6kV
FO1
6.3, 10, 16, 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200
50
OEGMA
3.6kV
FO2
100, 125, 160, 200
50
OLGMA
3.6kV
FO2
250
50
OEFMA
7.2kV
FO1
80, 100, 112
45
OHGMA
7.2kV
FO2
125, 140, 160
45
OEFMA
12.0kV
FO1
6.3, 10, 16, 20, 25, 31.5, 40, 50, 63
40
OHFMA
12.0kV
FO1
71, 80
40
OHGMA
12.0kV
FO2
6.3, 10, 16, 20, 25, 31.5, 40, 50, 63, 71, 80, 90, 100
40
OLGMA
12.0kV
FO2
125
40
OEFMA
15.5kV
FO1
6.3, 10, 16, 20, 25, 31.5, 40, 50, 63
40
OHGMA
15.5kV
FO2
71, 80, 90
40
OLGMA
15.5kV
FO2
100
40
OHGMA
17.5kV
FO2
6.3, 10, 16, 20, 25, 31.5, 40, 50, 63, 80
35
OEGMA
24.0kV
FO2
6.3, 10, 16, 20, 25, 31.5, 40, 50
25
Contact Cooper Bussmann for complete specifications on medium voltage fuses.
Code Number Reference
O
_
M
A
Type
O = Oil tight
Diameter
E = 63.5mm
H = 63.5mm
L = 63.5mm
Length
F = 254mm
G = 359mm
Striker
M = As specified in BS 2692 table 11
Tags
A = None (plain caps)
Catalog Number Build-A-Code
kV
Basic
Amps
Catalog Number
_ _ _
_ _ _ _ _
_ _ _
Current-limiting fuse for use in oil switchgear
Fuse types: OEF, OEG, OHF, OHG, OLG
10 Min — 16 Max striker travel after operation, if fitted.
63.5
68
Max
44
254mm (10 in) or 359mm (14 in)
Dimensions:
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