Direct Factory Solutions
High-Reliability Split Core CTs & Industrial Timing Infrastructure
Purpose-engineered for Slovakian power distribution grids, automotive energy audits, and PV micro-inverter monitoring. Discover high-permeability silicon steel and permalloy sensor cores built to integrate without disconnecting primary conductors.
24+
Years Electrical Engineering
5,700m²
TÜV Verified Production Site
0.2S
Class Accuracy Capability
100%
Dielectric & Ratio Calibrated
Localized Integration
Engineering Applications Across Slovakia's Industrial Fabric
In accordance with Act No. 251/2012 Coll. on Energy and technical parameters enforced by Slovakian distribution system operators (ZSD, SSD, and VSD), instrumentation transformers must deliver zero-downtime integration without compromising phase stability.
Automotive Assembly & Heavy Machining Audits
Slovakia's automotive powerhouse status—centered around Bratislava, Trnava, Nitra, and Žilina—demands non-intrusive current monitoring. Split core CTs allow Tier-1 industrial suppliers to deploy ISO 50001 energy monitoring systems directly around heavy motor feeder cables without disconnecting high-voltage busbars, eliminating multimillion-euro plant shutdown costs.
Commercial Rooftop & Ground PV Inverters
Under the national renewable energy frameworks supported by the Ministry of Economy of the Slovak Republic, commercial solar plants are retrofitted with export-limiting CTs. Our split core transformers interface with hybrid string inverters to provide sub-second phase current measurement, ensuring grid anti-islanding parameters and dynamic export-power curtailment remain compliant.
Secondary Substation & EV Fast-Charger Nodes
As the high-power EV charging corridor expands along the D1 and D2 highways, distribution transformers encounter erratic peak loading. Split-core CTs fitted with transient voltage suppressors (TVS) allow rapid deployment within compact secondary distribution substations (TS) to monitor transformer thermal headroom without breaking the sealed cable terminal bushings.
Standards Compliance
Engineering Matrix: Split Core CT Parameters for European Grids
Compare standard electrical and mechanical specifications designed to meet IEC / EN 61869-2 performance criteria across varying installation windows.
| Series & Window Dia. | Primary Input (A) | Secondary Output | Accuracy Class | Burden Rating (VA) | Safety / Withstand |
|---|---|---|---|---|---|
| SCT-10 (10mm Aperture) | 5A – 80A AC | 333mV / 1A / 50mA | Class 0.5 | Internal Burdens | CAT III 600V, TVS Clamped |
| SCT-16 (16mm Aperture) | 50A – 150A AC | 333mV / 1A / 5A | Class 0.5S / Class 1.0 | 1.0 – 2.5 VA | 3000V AC / 1 min isolation |
| SCT-24 (24mm Aperture) | 100A – 300A AC | 1A / 5A / 0.333V | Class 0.5 | 2.5 – 5.0 VA | UL94-V0 Flame retardant |
| SCT-36 (36mm Aperture) | 200A – 600A AC | 1A / 5A | Class 0.5 / Class 0.2 | 3.75 – 10 VA | IEC 61869-2, CE Marked |
| SCT-50 (50mm Aperture) | 400A – 1000A AC | 1A / 5A | Class 0.5S | 5.0 – 15 VA | 660V Max Working Voltage |
Industry Intelligence
Slovakian Energy Modernization & Regulatory Drivers
Understanding the statutory, environmental, and technological catalysts revolutionizing current sensing architecture across Central Europe.
Grid Decarbonization & Act No. 251/2012
The Slovak Republic is accelerating its clean energy transition under the National Energy and Climate Plan (NECP). Tightening legal requirements mandate comprehensive power-quality audits and harmonic distortion analyses (up to the 50th harmonic), generating high demand for split core current transformers with flat phase-angle response curves and high-linearity silicon steel laminations.
Micro-Generation & Virtual Power Plants (VPP)
Small-scale installations of distributed PV units, coupled with industrial battery energy storage systems (BESS), require bi-directional current profiling. Split core current sensors serve as the non-disruptive backbone for intelligent aggregation platforms in Kosice, Presov, and Banská Bystrica, enabling accurate metering of both grid feed-in and localized consumption.
Stringent Industrial Safety Directives
Slovakian safety regulations enforce rigorous protections against electrical arcs during maintenance. Solid-core CT installations require breaking primary power cables, triggering high administrative, permit-to-work, and safety hazards. Split core transformers completely avoid cable disconnection, ensuring maintenance teams work in safe, isolated low-voltage conditions.
TÜV Rheinland Verified Manufacturing
Industrial Scale, Uncompromising Quality from Liushi
Headquartered in Huabei Village, Liushi Town, Zhejiang TMB Electric Co., Ltd. leverages China’s densest low-voltage electrical component ecosystem. Our facility has passed comprehensive on-site assessments by TÜV Rheinland, combining 24 years of manufacturing discipline with state-of-the-art testing equipment.
- Every CT core is calibrated for ratio error and phase displacement (IEC 61869-2).
- Internal TVS diode clamping prevents high-voltage open-circuit hazards.
- Precision grain-oriented silicon steel (CRGO) & Nanocrystalline cores.
- Flexible B2B logistics with direct customs cleared exports to Bratislava & Košice.
Technical Clarifications
Frequently Asked Questions: Procurement for Slovakia
Critical engineering considerations, secondary ratings, open-circuit protection, and importation compliance for electrical contractors and panel builders.
What are the key technical distinctions between 1A, 5A, and 333mV secondary outputs for Slovakian switchboards?
Traditionally, European distribution networks use 5A or 1A secondary outputs to drive mechanical meters and legacy protective relays over long lead lengths. However, modern digital energy meters, PLC systems, and IoT telemetry devices favor 333mV low-power instrument transformer (LPIT) outputs. The 333mV option eliminates secondary resistive thermal losses and eliminates the danger of high-voltage arcing if secondary leads are opened under full primary current.
How do your split-core current transformers prevent core saturation and open-circuit shock hazards?
All our split-core sensors feature precision-machined core mating faces ground to optical flatness, held under constant spring pressure to minimize the air gap. For safety, voltage-output models (e.g., 333mV) integrate internal precision burden resistors, while mA or standard current models incorporate bidirectional Transient Voltage Suppressor (TVS) diodes across the secondary terminals, clamping accidental open-circuit voltages below 22V peak.
Are your split-core current transformers compliant with Slovak distribution rules (ZSD, SSD, VSD)?
Yes. Our transformers are engineered and tested in accordance with standard EN 61869-1 and EN 61869-2 (which superseded IEC 60044-1 in the Slovak technical regulatory system under STN EN standards). They carry genuine CE markings, meet RoHS/REACH chemical safety directives, and can be supplied with accredited test certificates validating Class 0.5 or Class 0.2 accuracy across 1% to 120% of rated nominal current.
What core materials are used to ensure accurate phase angle performance during harmonic power analysis?
For standard 50Hz sub-metering, we utilize premium Cold-Rolled Grain-Oriented (CRGO) silicon steel laminations with exceptional magnetic permeability. For applications requiring Class 0.2S revenue metering or high-frequency harmonic distortion measurement (solar inverters and variable frequency drives), we employ permalloy or advanced nanocrystalline ribbon cores, which exhibit virtually flat phase error from 40Hz to 3kHz.
What are the lead times and shipping conditions for delivery into the Slovak Republic?
For standard catalog aperture sizes (10mm, 16mm, 24mm, 36mm, 50mm), sample quantities are stocked and dispatch within 48 to 72 hours via air express (DHL/FedEx) delivering directly to Slovakia within 4-7 business days. Bulk orders for commercial and substation projects are dispatched via multimodal rail freight (China-Europe Railway Express directly to terminal hubs in Dunajská Streda or Bratislava) or direct ocean freight via Koper/Hamburg.
Architect Your Measurement Infrastructure with Confidence
Whether you require standard 100A/5A split core transformers for residential submetering in Košice or 2000A high-accuracy nanocrystalline CTs for automotive plants in Bratislava, our engineering export desk is ready to review your single-line diagrams.