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35kV Indoor Current Transformer

1.Input voltage:35kV,Output voltage:10kV
2.Frequency:50/60Hz
3.Rated primary current:20~2500A
4.Rated secondary current:5 or 1A
5.Standard:GB 20840.2-2014/IEC 61869-1 & 61869-2
6.The transformer is epoxy resin cast fully-enclosed electromagnetic.It features high accuracy, large capacity, and stable performance.
  • Fast Delievery
  • Quality Assurance
  • 24/7 Customer Service

Product Introduction

1.35kV Indoor Current Transformer: Precision & Reliability for Modern Grids

When upgrading your power infrastructure, the 35kV Indoor Current Transformer stands as a critical component for accurate current measurement and system protection. Designed for indoor installations, this transformer combines epoxy resin insulation, high thermal stability, and compliance with IEC/GB standards to deliver unmatched performance in substations, industrial plants, and renewable energy systems.

35kV Indoor Current Transformer

2.Technical Specifications

  • Input Voltage: 35kV
  • Frequency: 50/60Hz (Dual-Rated)
  • Primary Current: 20–2500A (Customizable)
  • Secondary Output: 1A or 5A
  • Accuracy Class: 0.2/0.5 for Metering; 5P/10P for Protection
  • Standards: GB 20840.2-2014, IEC 61869-1 & 61869-2
  • Insulation: Epoxy-Silicone Composite (Partial Discharge <10pC)
Rated primary current(A) Rated secondary current(A) Class combination Rated secondary output (VA) Short-time themal current(KA/S) Rated dynamic current(KA)
20-400 5 or 1A 0.2/0.5/10P10 0.2S/0.5/10P15 0.2/0.5/10P10/10P10 0.2S/0.5/10P15/10P15 15/15/50 15/15/30 15/15/30/30 15/15/20/20 80l1n 200l1n
500 40 100
600 48  
800 50  
1000 63 130
1200
1500
2000
2500 80 140

3.Key Features & Benefits

1. Advanced Insulation Technology

The fully enclosed epoxy resin casting ensures resistance to humidity, dust, and chemical corrosion, making this 35kV current transformer ideal for harsh indoor environments.

2. High Accuracy & Wide Dynamic Range

With a 0.2 class accuracy for metering and 5P/10P for protection, it supports precise energy billing and fault detection across diverse loads.

3. Compact & Space-Saving Design

Optimized dimensions simplify integration into switchgear panels (e.g., Siemens, ABB) without retrofitting, reducing installation time by 30%.

4. Dual-Frequency Compatibility

Operates seamlessly in both 50Hz and 60Hz grids, perfect for global projects requiring cross-regional interoperability.

4.Applications

Be used in a wide range of industries.

 

Industrial Plants

Industrial Plants

Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.

Solar/Wind Farms

Substation

Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.

Commercial Buildings

Commercial Buildings

Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.

 

5.How It Works?

The 35kV Indoor Current Transformer steps down high-voltage currents to safer, measurable levels. Its primary winding connects in series with the circuit, while the secondary winding delivers a proportional current to meters or relays. The epoxy-encased core minimizes magnetic interference, ensuring signal integrity.

6.Manufacturing & Quality Assurance

  • Automated Casting: Robotic epoxy resin application guarantees uniform insulation.
  • Testing Protocols: 100% routine tests include partial discharge, ratio error, and dielectric strength checks.
  • Certifications: ISO 9001, ISO 14001

7.Why Choose Us?

  • 30+ Years of Expertise: Developed under China’s 863 Program for cutting-edge grid tech.
  • Custom Solutions: Modify ratios, secondary windings, or enclosures per your specs.
  • Lifetime Support: Installation guidance, 5-year warranty, and 24/7 technical assistance.

Certificate

Certificate

Certificate

8.FAQs

1. What certifications do your 35kV transformers have?

Our units meet CE, UL, IEC, and GB standards.

2. Can I request custom current ratios?

Yes! We offer ratios from 20/5A to 2500/1A, tailored to your grid’s needs.

3. How long is the lead time for European orders?

Standard orders ship in 4–6 weeks, including customs clearance.

4. Do you provide test reports?

Comprehensive reports (ratio, dielectric, PD tests) are included with every shipment.

5. What’s the lifespan of your transformers?

Designed for 25+ years of service with minimal maintenance.

9.Contact Us

Need a reliable 35kV Indoor Current Transformer supplier? Email our team at xaxd_electric@163.com for quotes, CAD drawings, or technical details.

Optimize your grid’s efficiency today with our ISO-certified products – engineered for precision, built for tomorrow.

10.Factory Show

Factory

Factory

11.Equipment Display

Equipment

12.Application Cases

State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors

Shanxi Yongchang Group Coal Chemical Project: 10kV Switchgear
Shanxi Yongchang Group Coal Chemical Project: 10kV Switchgear
Gansu Jinhui Mining Project: 40.5kV Switchgear
Gansu Jinhui Mining Project: 40.5kV Switchgear
AVIC Turkey Project: 10kV Reactive Power Compensation Capacitor Bank
AVIC Turkey Project: 10kV Reactive Power Compensation Capacitor Bank
Sekong Coal Mine (Phonesack Group), Laos: Capacitor Banks & Transformers for 22kV Line Compensation
Sekong Coal Mine (Phonesack Group), Laos: Capacitor Banks & Transformers for 22kV Line Compensation
Heilongjiang Project: Capacitor Banks (Tower-Type)
Heilongjiang Project: Capacitor Banks (Tower-Type)
Xinjiang Project: Capacitor Banks (Tower-Type)
Xinjiang Project: Capacitor Banks (Tower-Type)

13.Team and Exhibition

Team and Exhibition

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