Energy meter CT’s made using Nano crystalline cores are Non DC immune current transformers for energy meters. The CT is small in size with customized casing and metal shield, (optional) for protection against external magnetic field. The wound CT is epoxy potted for durable and long life performance. Number of turns can be wound/adjusted as per customer requirements. CTs can be provided with or without metal shield in custom casings.
Electrical Specification:
Model
CT 80A
Inductance
100-220H
DC Resistance
90-110 ohms
No. of turns
2000
Operating temp.
-40° C ≈ 70° C
Storage Temp
-40° C ≈ 85° C
Core material
Nano crystalline
Accuracy
0.1 class
Error
<0.1%
Phase Shift
<15
Operating Frequency
50 Hz-10KHz
Load
10 Ώ max
Mechanical Specification:
Plastic Casing
PP / Nylon 6 (Black) /PBT
Secondary termination
PVC (Red/Black)
Epoxy material
Non- hygroscopic Transparent / black/Red/ White potting material
Dielectric Strength
4000V AC/60S
Insulation Resistance
>1000 MΏ (500V DC)
Mechanical Dimensions :
Application
For direct connected / whole current Energy Meters
Advantages
Many custom designs possible
Can be provided as full assembly, comprising of CT with primary conductor and welded brass terminals
Small size
Material Specification:
Min Initial Permeability
>84000 at 50Hz
H Coercivity
<0.8 mA / cm
Core Dimension
21 +/-0.2 X 14 +/-0.2 X 5 +/-0.1
Mechanical Specification:
No.
Item
Description
Material
1
Core
21 OD x 14 ID x 5.0 Th (10-80A)
Hybrid Core
2
Wire
41 SWG
Copper
3
Epoxy
Acrabond 774 /Dr Beck
Epoxy
4
Lead wire
PVC/PTFE Multi strand
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