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JLSZV-10/16 Combined Voltage & Current Transformer Metering Box
Compact Metering Solution for 10kV Distribution Systems
The JLSZV-10/16 combined transformer is a fully integrated outdoor metering box, designed to measure both voltage and current in 10kV three-phase three-wire networks. It combines one voltage transformer and two current transformers into a single enclosure, ensuring space savings, easy installation, and precise revenue metering in power distribution systems.
The unit is epoxy resin cast and enclosed in a weatherproof stainless steel cabinet, fully compliant with IEC 61869 and GB/T 20840 standards.
🔧 Key Features
Rated system voltage: 10kV
CT secondary options: 5A / 1A
VT secondary: 100V / 110V
Accuracy class: 0.2S / 0.5 for metering, 5P for protection
Maintenance-free epoxy insulation
Pre-wired terminal box for easy integration
Fully sealed stainless steel housing for outdoor use
📐 Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | JLSZV-10/16 |
| System Voltage | 10kV |
| Frequency | 50Hz / 60Hz |
| Voltage Transformer Accuracy | 0.2 / 0.5 |
| Current Transformer Accuracy | 0.2S / 0.5 / 5P |
| Rated Secondary Current | 5A or 1A |
| Rated Secondary Voltage | 100V / 110V |
| Thermal Limit Current | 1.2×In continuous |
| Dielectric Strength | 42/75kV |
| Protection Grade | IP54 |
| Installation Type | Floor-mounted or pole-mounted |
🏗️ Typical Applications
10kV power distribution substations
Rural electrification projects
Industrial energy metering systems
Grid-interconnected renewable stations
Metering cubicles in compact switchgear
💡 Unique Benefits
Reduces on-site wiring by integrating CTs and VTs in one box
Minimizes installation footprint, ideal for space-limited substations
Protective steel cabinet extends lifespan in harsh environments
Customizable winding ratios to suit varied energy billing systems
Accurate even in load variation zones, with class 0.2S available
💬 Real Customer Reviews
🗣️ Johan M., Energy Metering Specialist – E.ON Sweden
“The compact JLSZV metering unit saved us over 40% space in modular switchgear. Its accuracy is consistent under fluctuating loads.”
📌 Source: E.ON Smart Distribution Equipment Audit, 2023
🗣️ Fiona B., Project Manager – Enel Green Power, Italy
“We installed it across multiple solar connection points. Easy to commission, no need for separate CT/VT housings.”
📌 Source: Enel EPC Site Commissioning Notes, 2022
🗣️ David K., Utility Inspector – Eskom, South Africa
“We appreciate the stainless housing—it handles dust and rain without issue. Wiring layout is intuitive.”
📌 Source: Eskom Distribution Inspection Report, 2023
🗣️ Michael S., Grid Modernization Team – BC Hydro, Canada
“It simplifies procurement and maintenance by combining two metering instruments in one. Helpful for remote substations.”
📌 Source: BC Hydro Smart Grid Deployment Feedback, 2022
🗣️ Luis R., Power Quality Analyst – Iberdrola, Spain
“The VT/CT accuracy exceeded expectations during calibration checks. Highly recommend for automated billing stations.”
📌 Source: Iberdrola Energy Efficiency Lab, 2023
❓ Frequently Asked Questions
• Is this suitable for both metering and relay protection?
Yes. Dual-core CTs are available with separate outputs for metering and protection.
• Can the cabinet be wall-mounted or pole-mounted?
Yes. Both mounting options are available with adjustable brackets.
• Is it compatible with smart meters?
Absolutely. The pre-wired terminals support RS-485 or analog signal interface for smart metering integration.
• What standards does this model meet?
It complies with IEC 61869-1/-2/-3 and GB/T 20840.2/3 standards for voltage and current transformers.
• Can we request specific ratio combinations?
Yes. Custom VT/CT primary and secondary ratios can be specified for project requirements.
📞 Technical Support
Thor – Electrical Engineer, Wei Shoe Elec
📞 Tel: +86-0577-62788197
📱 WhatsApp: +86 159 5777 0984
📧 Email: [email protected]
Choose JLSZV-10/16 for a robust, integrated metering solution trusted by top utilities across Europe and Africa.
