Description
1. Advantages: Dry-type insulation No
oilfilling, no gasfilling, no ceramic Antipollution Easy operation
and maintenance
2.
Type:
LGB- 1
L: CT, Current Transformer
G: dry type,no-filling
B: with protection winding
1: rated voltage, kV
3.
service conditions
Ambient air
temperature: –*0 centigrade ~ **0 centigrade
The altitude: ≤***0m,if higher,amend according to IEC
****4
The creepage ratio: *0mm/kV, *5mm/kV or *1mm/kV
4.
Technical indexes
Rated
voltage: *3kV
Partial discharge: ≤5pC
Dielectric dissipation factor: ≤0.**4
Ith: *0 kA, Idyn: **5 kA
Rated primary current: ≤***0A
Rated secondary current: 5A or 1A
Rated output capacity: ***0VA
Accuracy limit factor: 5, *0, *5, *0, *0, *0, *0
Accuracy classes for measuring core: 0.2, 0.2S, 0.5,
0.5S
Accuracy classes for protective core: 5P, *0P, 5PR,
*0PR, TPY
All parameters are in accordance with IEC ******1
1.Use
LGBJ**3 current transfromer can be applied to wet
or dry tropical zone and highland places.
2. Standards
IEC standard: IEC
******1,ISO***1
National Standard: GB***8 ,GB**1.1 Insulaiton
co-ordination for high voltage transmission and distribution
equipment
3. Service Condition
Ambient Temperature:
**0oC~**0oC
Altitude: ≤***0m,if higher,amended according to
IEC ****4
Creepage ratio: *0mm/kV, *5mm/kV or *1mm/kV
4. Earthing method
The neutral is solidly grounded
5. Advantages:
-
dry type isolation with the
silicone rubber skirt.
- no
oilfilling, no gasfilling, no ceramic
- high
ability of antipollution, easy operation, no
maintenance
-
the current ratio can be changed
easily by changing the connection method in shielding
enclosure to facilitate the realization of series or
parallel connection.
-
the grading cover is aluminum
alloy casting formed and the cabinet is stainless steel plate
drawing formed, use DACRAL(Zinc/Chromate coatings) for resistance
to corrosion, which has a good level of corrosion
resistance
-
the electric field is evenly
distributed, and the partial discharge is small amount and stable,
small dielectric loss.
