Solar Power Plant Step-Up Transformer 33kV 66kV
Multi-winding step-up grid transformer designed for utility-scale solar PV EPC installations. Features enhanced harmonic withstand, low partial discharge, and ONAN cooling efficiency.
Send an InquiryPrecision-engineered electrical current transformers, step-up/step-down power units, split-core CTs, and high-frequency ferrite components manufactured for global utilities, EPC projects, renewables, and smart metering networks.
Multi-winding step-up grid transformer designed for utility-scale solar PV EPC installations. Features enhanced harmonic withstand, low partial discharge, and ONAN cooling efficiency.
Send an Inquiry
High-frequency EE/EF flyback transformer for SMPS power supplies, LED drivers, and industrial electronics. Built with high-permeability MnZn ferrite cores and low leakage inductance.
Send an Inquiry
Non-invasive split-core current transformer engineered for smart sub-metering and energy management. Delivers 333mV safe output with precision Class 0.5 accuracy across dynamic loads.
Send an Inquiry
Heavy-duty oil-immersed distribution transformer with 6.6kV/10kV input and 690V/400V output options. Designed with copper foil windings and CRGO core for maximum thermal performance.
Send an Inquiry
IEC-compliant 660V single-phase split-core CT designed for rapid retrofit electrical panel monitoring. Offers snap-on installation without disconnecting primary busbars.
Send an Inquiry
Ultra-compact PCB and panel-mount current sensor featuring high-purity copper windings. Engineered for power transducers, relay protection, and digital energy meters.
Send an Inquiry
Step-down high-frequency transformer designed for constant current LED drivers and compact power converters. Built for high breakdown insulation and minimal temperature rise.
Send an Inquiry
High-voltage ONAN oil-immersed power transformer for main transmission substations and industrial plants. Outfitted with OLTC tap changers and total fault protection systems.
Send an InquiryAs China’s premier current transformer manufacturer and exporter, our engineering methodology integrates high-permeability magnetic core selection, precise coil transposition, and complete thermal modeling to deliver superior grid reliability.
Our distribution and step-up transformers utilize continuous electrolytic copper and aluminum foil winding technology. By eliminating axial short-circuit forces and reducing hot-spot temperature rise, foil windings ensure operational longevity under severe transient overload conditions and high-harmonic loads.
We process prime Cold-Rolled Grain-Oriented (CRGO) silicon steel and ultra-fine nanocrystalline alloys for our instrument current transformers. This results in extremely low excitation currents ($I_e$), minimal no-load core losses, and precise saturation knee-point voltages ($V_k$) compliant with IEC 61869-2.
Every current transformer, PT, and substation power unit undergoes strict Factory Acceptance Testing (FAT). Our internal lab is equipped for turns-ratio verification, phase angle error measurement, winding resistance testing, high-voltage dielectric withstand, and partial discharge (<5 pC) analysis.
In power system protection, current transformer core saturation during asymmetric short-circuit faults poses a catastrophic risk to distance and differential relays. Our custom protection CTs (5P20, 10P20, and Class PX/TPX/TPY/TPZ) are calculated with high Accuracy Limit Factors (ALF) and low secondary winding resistance ($R_ct$) to guarantee linear transformation even during maximum transient DC offset events.
An in-depth whitepaper analysis on how smart grid digitization, renewable energy scaling, and non-invasive energy auditing are reshaping the global procurement landscape for current transformers.
Modern electrical substations are rapidly migrating toward IEC 61869-9 and IEC 61869-13 digital architectures. Conventional analog 5A/1A secondary outputs are increasingly interfaced with Merging Units (MU) that convert analog current waveforms into Process Bus Sampled Values (SV). Industrial buyers are prioritizing suppliers who provide Rogowski coils and low-power stand-alone current sensors (LPITs) capable of seamless digital integration.
Solar PV plants and wind turbines introduce significant high-frequency harmonics and thermal stress into step-up transformers and measurement CTs. Sourcing strategies are shifting toward K-factor-rated transformers and current sensors with wide frequency bandwidths (DC up to 20 kHz) to ensure accurate power quality measurement and prevent thermal degradation caused by skin and proximity effects in copper conductors.
As commercial facilities and industrial plants retrofit energy management systems (EMS) to comply with ISO 50001 net-zero standards, power shutdowns become unacceptable. Procurement of split-core current transformers (SCTs) featuring millivolt (333mV) or milliamp outputs has surged. Modern SCTs leverage high-permeability nickel-iron (Mu-Metal) cores to achieve Class 0.5 revenue accuracy while maintaining a simple click-lock mechanical installation.
Global EPC firms and utility procurement officers are moving away from traditional localized procurement toward Tier-1 Chinese manufacturing partners capable of delivering massive scale, cost efficiency, and total transparency. Automated Factory Acceptance Testing (FAT) with live cloud-streamed impulse testing and material traceability dossiers (CRGO origin certificates, copper purity reports) are now standard requirements for overseas buyers.
Compare design parameters across key transformer topologies to select the correct specification for your application.
| Transformer Topology | Typical Accuracy Class | Primary Current Range | Insulation Level | Core Material | Target Application |
|---|---|---|---|---|---|
| Split-Core CT (SCT) | Class 0.5 / 1.0 (333mV) | 5A to 1000A | 0.66 kV / 3 kV BIL | Permalloy / Nanocrystalline | Energy Auditing & EMS Retrofit |
| Metering Ring/Bar CT | Class 0.2 / 0.2S / 0.5S | 100A to 5000A | 0.72 kV up to 36 kV | High-Permeability CRGO | Utility Revenue Metering Panels |
| Protection Current Transformer | 5P20 / 10P20 / Class PX | 50A to 4000A | Up to 69 kV Class | Grain-Oriented Silicon Steel | Breaker & Substation Relay Protection |
| High-Frequency SMPS Transformer | N/A (Switching Duty) | Fractional A to 50A | 1.5 kV to 4 kV AC | MnZn Ferrite (EE/EF/EFD) | LED Drivers & Telecom Rectifiers |
| Solar Step-Up Transformer | IEC 60076 Compliant | Up to 3500 kVA | 11kV / 33kV / 66kV | Foil-Wound CRGO Stack | Solar PV Inverter Grid Tie-in |
| Substation Power Transformer | Utility Standard | 10 MVA to 30 MVA | 33kV to 69kV Class | Low-Loss Silicon Steel | Main Substation Step-Down Feeder |
Answers to critical technical and commercial questions routinely posed by global EPC engineers, buyers, and utility managers.
Whether you require high-volume split-core current transformers for smart meter manufacturing, precision instrument CTs for utility switchgear, or robust 33kV/66kV step-up power transformers for renewable energy infrastructure, our engineering desk delivers custom solutions tailored to your technical specification.
Have a specific single-line diagram (SLD), burden requirement, or custom transformer design request? Speak directly with our senior Application Engineers today.