Current transformer mainly used in all kinds of electricity meter such as energy meter, water meter or electricity meter. We have current transformers both with and without DC immune. We can offer through-hole type, PCB type, Busbar type and flying wir type in mounting. Product with high accruacy up to 0.5, small phase error etc. We can also design and manufacture all kinds of current transformer according strictly to customer's special requirements.
1), All enclosed design, good performance of mechanical and insulation.
2), Pin design, easy to installate in PCB.
3), This series of CTs have small size that can be used as separate.
4), Linear output with high accuracy current.
5), Smalll size, light weight, standard hole easy to installation, Normal specifications and parameters as follow.
|Single Turn Primary Mini Current Transformer(specifications)|
|Exterior Material||PBT Resin UL flame retardant rating 94-V0|
|Interior Insulation||Epoxy Encapsulated|
|Isolation Voltage||2500 Vrms for 1 minute|
|Dielectric Resistance||1000 M Ohms @ 500 Vdc|
|Surge Withstand||5000V(1.2/50μs standard shock wave)optional|
|Rated Load Resistance||100K Ohms|
|Operating Temperature||-25 to +55ºC,-40 to +85ºCoptional|
|Frequency||50 to 400 Hz|
|Accuracy Class||defined in IEC 60044-1 Part 1 Voltage Transformers Class 0.1 0.2|
|Certification||RoHS Compliant CE Approved|
|Single Turn Primary Mini Current Transformer(features)|
|More than 50 standard sizes|
|Non-symmetrical mounting pattern|
|Toroidal Silicon steel and Nickel Alloy available|
Current transformers for electronic watthour meters with DC-tolerance are designed for applications where AC current signals or
half wave rectified DC current signals must be
transformed accurately into a lower current signal
appropriate for micro-processor based circuits.
A new TA model can be designed and manufactured to meet the specific
design challenges of the client's specific application. The following models
are only a small sampling of the many different products which have been
and are currently being manufactured.
Electronic watthour meters according to IEC 62053 -21, -23 must
have a tolerance to DC current
Case Material: PBT Resin UL flame retardant rating 94-V0
Construction: Epoxy Encapsulated housing
Isolation Voltage: 2500 Vrms for 1 minute
Insulation Resistance: 1000 M Ohms @ 500 Vdc
Surge Withstand: 5000V(1.2/50μsstandard shock wave)
Operating Temperature:-25 to +55ºC,-40 to +85ºC
Optional Frequency: 50 to 400 Hz
Accuracy Class: Compliant IEC 60044-1, Class 0.1, 0.2
Tianjin Grewin Technology Co.,Ltd.