Calidad

ISO 9001:2008

Servicio

ODM Y OEM

Certificado

CE、TUV、CB、RoHS

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Current Transformer Supplier

Willmall Current Transformer options support project procurement with configurable ratio, rated current, and output form, including split-core designs for retrofit.

Inner Size 300A Power Inverter Sensor Module Curre

Inner Size 300A Power Inverter Sensor Module Current Transformer

NSQ Series Inner Size 300A Power Inverter Sensor Module Current Transformer, IEC-185 Standard, 600V, 5A Secondary, ABS Enclosed Housing.
Split Core Instrument Split Core Zero Phase Se

Split Core Instrument Split Core Zero Phase/Sequence Low Voltage Potential Transformer for Current Measurement 0.66kv

Split Core Zero Phase Sequence Low Voltage Potential/Current Transformer CA45/14, 0.66kV (720V), 5A Secondary, 50/60Hz, Clamp-On Design.
DSC Series 660V Low Voltage AC Current Transformer for Multiple Cables and

DSC Series 660V Low Voltage AC Current Transformer for Multiple Cables and Busbar Measurement

DSC Series 660V Low Voltage Split Core AC Current Transformer for Multiple Cables and Busbars, 100–5000A, 0.72/3kV, IEC44-1 Compliant, Clamp-On Installation.
Dp Split Core Current Transformers 100 5A 6000 5A for Switchgear Manufac

Dp Split Core Current Transformers 100/5A – 6000/5A for Switchgear Manufacturer

DP Split Core Current Transformer 100/5A–6000/5A for Switchgear, 0.72/3kV, 50/60Hz, IEC44-1/BS7626/VDE0414 Compliant, Clamp-On Installation.
0 66 Split Core Current Transformer Window Type 60 40 Current Transformer Factor

0.66 Split Core Current Transformer Window Type 60*40 Current Transformer Factory Price OEM ODM

0.66 Split Core Current Transformer Window Type 60×40 CHK-0.66K Clamp-On CT, Openable Core, Easy Installation for Cables/Busbars.
0 5kv 0 66kv Electric Current Transformer Flexible Low Voltage CT for Energy Monitoring

0.5kv 0.66kv Electric Current Transformer Flexible Low Voltage CT for Energy Monitoring

0.5kV/0.66kV Flexible Split Low Voltage Current Transformer (CT) for Energy Monitoring, Openable Clamp-On Design, 50/60Hz, Easy Installation.
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Wilmall Current Transformer Manufacturer

Willmall provides Current Transformer configurations to support procurement review, including selectable ratio, rated current, and output form for panel and retrofit projects.
  • Optional transformer ratio, rated current, and output form to align with metering or protection secondary requirements
  • Temperature-resistant and flame-retardant material specification for installation in electrical enclosures
  • Safety isolation design characteristic of instrument transformer applications between primary and secondary circuits
  • Open/split type Current Transformer option for retrofit on energized conductors during uninterrupted power supply upgrades
  • Documentation-oriented configuration approach intended to facilitate project acceptance and procurement review
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What is a Current Transformer?

A Current Transformer is an instrument transformer that converts a primary AC current on a conductor into a scaled secondary current suitable for measurement or protection devices. The secondary circuit is intended for connection to meters, relays, or monitoring inputs based on the selected output form.

How does a Current Transformer ratio relate to the measured current?

Current Transformer ratio defines the relationship between primary current and secondary output. Selection of transformer ratio and rated current is based on expected operating current range and the input specification of the connected device to ensure correct scaling.

Which output form should be selected for meters or protection relays?

Output form selection depends on the secondary input requirement of the meter or relay. Engineering review typically confirms the required secondary signal type and the wiring interface so the Current Transformer output form matches the receiving terminal specification.

How is an open/split type Current Transformer used for retrofit work?

Open/split type Current Transformer designs allow installation around an existing conductor without disconnecting the conductor. Installation practice generally includes verifying conductor routing, ensuring mechanical closure of the split core, and connecting the secondary to the intended measurement or protection circuit.

When should temperature-resistant and flame-retardant construction be specified?

Temperature-resistant and flame-retardant construction is specified when Current Transformer installation occurs inside electrical enclosures or environments where elevated temperature and material performance requirements apply. Specification review typically aligns material characteristics with the project’s cabinet and site conditions.