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Split Core Current Transformers KCT type

  • Rated Input: 5A-200A
  • Core: Silicon steel
  • Rated Output: 0.333V(AC)or 0-500mA
  • Class: 0.2s/0.2/0.5s/0.5/1.0
  • Frequency:50-2KHz
  • Bobbin: PBT

split core current transformers are usually installed on current intensive power lines or equipment, and output the measured current signals to users for monitor measurement or protection.

Introduce:

HEYI and ASCT brand of KCT type split core current transformers have been specifically designed to be small CT and easy to open and yet maintain the accuracy required for kwh meters. The benefit of a split core current transformers is that it can be placed into position easily and without disturbing or disconnecting the main cables it is monitoring. The KCT type of current transformers has two insulated terminal covers for connecting the S1 and S2 cables which lock down over the terminal screws fully insulating the connections. This makes it ideal to use Autometers cable hamesses which are colour coded and individually numbered on each conductor ensuring simple and easy connection from the current transformer to the electricity meter.

Features:

The structure of the self-locking, safe, easy to install, portable.
Wide range of sizes to accommodate all the existing installations.
Isolated plastic case recognized according to UL94-V0.
Wires plugs,Audio plugs,Power plugs and so on five kinds of plugs.

Applications:

Current measurement, monitoring and piotection for electrical wiring and equipment.
Current and power measurement for electric motors, lighting, air compressor, heating and ventilation system,air-condition equipment and automation-control system.
Current, power and energy monitoring device.
Relay protection device.
Charging pile
Data center

Current transformer (CT) is a widely used power measurement sensor in power systems, which is used to measure the current in high voltage (AC) circuits. Its main function is to convert a large current into a small current to facilitate measurement and protection of the circuit. It can provide the function of isolating and protecting the circuit

Before installing a CT, the measurement is performed directly on the circuit, but this often leads to circuit overload and damage, as well as potential safety hazards. To avoid this situation, CT is used to monitor the current.

There are many different types of current transformers, including split core current transformers, closed type current transformer, pole type current transformer, and window  type CTs, which have their respective advantages, disadvantages, and applicable conditions. However, they all work on the same principle

The winding of the CT is wrapped in an iron core and can be accessed by installing clips or perforations. When there is current flowing through the circuit, the current will generate electromagnetic induction inside the CT winding. This will cause a secondary current to be generated at the CT output, and the magnitude of the secondary current is proportional to the input current.

When using CT, close attention needs to be paid to accuracy and inductance. The accuracy of a CT depends on its scale and phase error. Inductance is also one of the factors that need to be considered, because CT not only consumes a certain amount of electrical power, but also produces magnetic interference.

Electrical Parameter Mechanical Parameter
Frequency 50-2KHz Case PA/UL94-V0
Rated Input 5A-200A Bobbin PBT
Measuring range 10%In-120%In Core Silicon steel
Rated Output 0.333V(AC)or 0-500mA Internal structure Epoxy
Ratio ≤ ± 1.0% Construction Tie
Phase angle ≤ ±60min Operation Temp -25oC~+75oC
Dielectric strangth 2.5KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection UL1015 20AWG Wire2.5m
MODEL KCT-6
Current Ratio 5A/2.5mA 10A/5mA 20A/10mA
Primary Current 5A 10A 20A
Max.Current 30A 30A 300A
Output 2.5mA 5mA 10mA
Load Resistance 200Ω 100Ω 50Ω
Class 0.5/1.0
Turns Ratio 2000:1 2000:1 2000:1
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃~+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃~+50℃,≤85%RH,No condensation
MODEL KCT-10
Current Ratio 5A/2.5mA 20A/10mA 60A/20mA 75A/25mA 1~75A/0.333V
Primary Current 5A 20A 60A 75A 1~75A
Max.Current 60A 60A 750A 75A 1~75A
Output 2.5mA 10mA 20mA 25mA 333mV
Load Resistance 400Ω 100Ω 50Ω 20Ω /
Class 0.5/1.0
Turns Ratio 2000:1 2000:1 3000:1 3000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃~+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃~+50℃,≤85%RH,No condensation
MODEL KCT-16
Current Ratio 100A/33.3mA 100A/40mA 120A/40mA 200A/66.7mA 100~200A/0.333V
Primary Current 100A 100A 120A 200A 100~200A
Max.Current 120A 120A 120A 240A 240A
Output 33.3mA 40mA 40mA 66.7mA 333mV
Load Resistance 50Ω /
Class 0.5/1.0
Turns Ratio 3000:1 2500:1 3000:1 3000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃~+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃~+50℃,≤85%RH,No condensation
MODEL KCT-24
Current Ratio 100A/40mA 200A/40mA 200A/66.7mA 400A/80mA 100~400A/0.333V
Primary Current 100A 200A 200A 400A 100~400A
Max.Current 150A 240A 240A 480A 4800A
Output 40mA 40mA 66.7mA 80mA 333mV
Load Resistance 50Ω /
Class 0.5/1.0
Turns Ratio 2500:1 5000:1 3000:1 5000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃~+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃~+50℃,≤85%RH,No condensation
MODEL KCT-36
Current Ratio 300A/100mA 400A/40mA 500A/50mA 600A/60mA 300~600A/0.333V
Primary Current 300A 400A 500A 600A 300~600A
Max.Current 360A 480A 600A 720A 720A
Output 100mA 40mA 50mA 60mA 333mV
Load Resistance 50Ω /
Class 0.5/1.0
Turns Ratio 3000:01:00 10000:1 10000:1 10000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃~+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃~+50℃,≤85%RH,No condensation

Diagram

KCT-16

Split Core Current Transformers KCT type-heyi

KCT-36

Split Core Current Transformers KCT type-heyi

KCT-10

Split Core Current Transformers KCT type-heyi

KCT-24

Split Core Current Transformers KCT type-heyi

KCT-50

Split Core Current Transformers KCT type-heyi

Accuracy Test

Split Core Current Transformers KCT type-heyi

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