LZZBJ9-10C3B Current Transformer & JDZ10-10RA/C Voltage Transformer

10kV Handcart Cabinet Special Instrument Transformers
1. Product Overview
The LZZBJ9-10C3B current transformer and JDZ10-10RA/C voltage transformer are dedicated instrument transformers designed for 10kV indoor metal-clad handcart switchgears (GZS1-KYN type).
With optimized compact outline and standardized mounting dimensions, they can be directly installed on standard switchgear handcarts, perfectly integrating metering, monitoring and fault protection functions for medium voltage power distribution systems.
This full series covers primary current up to 1250A and mainstream 3kV/6kV/10kV voltage ratios, serving power grids, factories, mining and commercial building power stations.
2. Model Application Scope
Applicable cabinet: GZS1-KYN middle-put handcart switchgear
Rated system voltage: 10kV
Max rated primary current of CT: 1250A
Core usage: Energy billing metering, grid monitoring, short-circuit relay protection

3. Core Technical Parameters
LZZBJ9-10C3B Current Transformer
Rated primary current range: 5A ~ 1250A
Standard accuracy combinations: 0.2/10P, 0.5/10P (separate windings for measurement & protection)
Rated secondary output: 10VA / 15VA optional
Excellent short-circuit resistance: Short-time thermal current up to 80kA, dynamic current up to 130kA
Cast resin insulation, moisture-proof and dust-proof for long-term indoor operation
JDZ10-10RA/C Voltage Transformer
Standard voltage ratios: 3000/100, 6000/100, 10000/100, 10000/100/100V
Accuracy classes: 0.2 / 0.5 / 1 class for selection
Multiple rated output capacity: 15VA ~ 60VA, limit output 150VA
Matched insulation level: 3.6/23/40kV, 7.2/32/60kV, 12/42/75kV
4. Key Product Strengths
Handcart Special Compact Design
Customized size for GZS1-KYN handcart cabinets, simple installation without extra cabinet modification, saving switchgear internal layout space.
Dual-Function Winding Layout
CT integrates independent metering and protection windings, realizing accurate energy measurement and reliable fault signal output simultaneously.
Flexible Parameter Customization
Multiple current ratios, voltage ratios, accuracy grades and load capacity options to meet different project metering and protection requirements.
Durable Epoxy Cast Construction
Fully enclosed epoxy resin insulation structure features anti-aging, anti-humidity and anti-pollution performance, zero daily maintenance for indoor substation operation.
Full Standard Compliance
All transformers comply with national medium voltage transformer standards, with complete factory test reports, calibration certificates and COC documents for global export.
5. Main Application Scenarios
10kV KYN28/GZS1 indoor handcart switchgear rooms
Urban and county power grid distribution substations
Manufacturing plants, chemical factories, mining power supply systems
Commercial complexes, hospital and school public power stations
Government and state-owned enterprise power infrastructure projects
6. DSJ Supply Advantage
DSJ Electrical cooperates with Dalian No.2 Instrument Transformer Group, the professional transformer manufacturer with 45 years production experience. We supply full set LZZBJ9 and JDZ10 series transformers with complete certification documents.
We support factory inspection before shipment and on-site acceptance. Our technical team provides free parameter matching and cabinet layout drawing guidance for global clients across Africa, Australia, Middle East and Southeast Asia.
Call To Action
Contact DSJ Electrical to get datasheets, quotation and customized solutions for 10kV handcart CT & VT transformers.

LZZBJ9-10C3B CT & JDZ10-10RA/C VT 
DSJ Electrical offers LZZBJ9-10C3B current transformers and JDZ10-10RA/C voltage transformers exclusively designed for 10kV GZS1-KYN handcart switchgears, with a maximum rated primary current of 1250A. The CT adopts dual 0.2/10P or 0.5/10P accuracy windings for metering and protection, boasting strong short-circuit withstand capacity. The matching VT covers mainstream 3kV/6kV/10kV ratios with multiple output grades. Compact epoxy cast construction fits standard handcarts, wi