0.5s High Precision Split Core Current Transformer
Product Description
Product Overview
A Split Core Current Transformer (CT) is a type of current transformer specifically designed for convenient installation and retrofitting in existing electrical systems. Unlike solid core CTs, which require disconnection of the primary conductor for installation, a split core CT can be opened, clamped around the conductor, and closed without interrupting service. This unique feature has made split core CTs highly popular in energy monitoring, power quality analysis, and load management applications.
Product features
Split-core design allows tool-free installation without disconnecting primary conductors.
High measurement accuracy ensures reliable data for monitoring and protection applications.
Compact structure enables flexible mounting in limited space of distribution panels and switchgear.
Applications
Split core current transformers are widely applied in low-voltage distribution systems for real-time current monitoring and overcurrent protection with easy installation that avoids disconnecting primary conductors.
They serve industrial automation and motor control scenarios by monitoring motor load current and detecting faults to support PLC and VFD-based adjustment and protection of production line machinery.
These transformers act as integral components in renewable energy systems to monitor inverter output current, ensuring grid connection compliance and enabling energy metering and grid synchronization.
They are deployed in building energy management systems to conduct energy consumption monitoring and sub-metering of electrical loads like lighting and air conditioning, facilitating energy optimization and cost reduction.
Product Parameters
| Type | TRFK-10C | TRFK-16C | TRSK-24C | TRSK-36C | TRSK-50C |
| Rated input | 1-50A | 1-100A | 200-300A | 200-600A | 400-1200A |
| Rated output | 0.5-50mA | 0.5-100mA | 1A, 5A | 1A, 5A | 1A, 5A |
| Ratio error @rated primary | ±0.5%、±1.0% | ±0.5% | |||
| Phase error @rated primary | ≤150′ | ≤90′ | ≤180′ | ≤60′ | ≤60′ |
| Secondary load | ≤20Ω | ≤50Ω | / | / | / |
| Rated capacity | / | / | 1VA,2.5VA | 1VA, 2.5VA, 3.75VA | 1VA, 2.5VA, 3.75VA, 5VA, 10 VA |
| Aperture | Φ8.5mm | Φ15mm | Φ24mm | Φ36mm | Φ50mm |
| Tolerance | ±1.0mm | ±1.5mm | |||
| Weight | Around 130g | Around 180g | Around 300g | Around 580g | Around 880g |
| Overload | 1.2 times | ||||
| Working frequency | 50/60Hz | ||||
| Power frequency withstand voltage | 3kV AC/10s | ||||
| Dot terminal | P1 and S1 | ||||
| Primary Input type | Busbar through-core | ||||
| Secondary Input type | Terminal output | ||||
| Shell | Flame-retardant PC plastic | ||||
| Application place | Indoor use | ||||
| Operating ambient temperature | -25℃-+75℃ | ||||
| Storage temperature | -40℃-+85℃ | ||||
| Relative humidity | ≤90% | ||||
| Barometric condition | 70kPa-106kPa | ||||
Typical Value and Dimension