35kV Indoor Voltage Transformer(Potential transformer)

1.35kV Indoor Voltage Transformer(Potential Transformer)

Your search for a reliable, high-performance solution to ensure precise voltage measurement and grid protection ends here. Our 35kV Indoor Voltage Transformer(Potential Transformer) is engineered to deliver unmatched accuracy (0.2/0.5 class), durability, and compliance with global standards like IEC 61869 and GB 20840.2-2014. Designed for indoor installations, it features epoxy resin insulation for thermal stability (-40°C to +70°C) and minimal partial discharge (<10pC), making it ideal for power utilities, industrial plants, and smart grid systems.

2.Technical Specifications

• Input Voltage: 35kV
• Output Voltage: 10kV
• Frequency: 50/60Hz
• Rated Primary Current: 600/800A
• Accuracy Class: 0.2/0.5 (metering), 3P/5P (protection)
• Standards: IEC 61869-1/2, GB 20840.2-2014
• Insulation: Flame-retardant epoxy resin, fully enclosed

• Type	Rated voltage ratio(V)	Class combination	Rated secondary output (VA)	Limited output(VA)	Rated insulation level ( kV)
  JDZ9-35	35000/100	0.2/0.5	75	800	40.5/95/185
  			150
  	35000/100/100	0.2/0.5	30/50	400
  JDZX9-35	35000/√3, 100/√3, 100/√3	0.2/6P	50/100	600
  		0.5/6P	80/100
  	35000/√3, 100/√3, 100/√3, 100/√3	0.2/0.5/6P	30/50/100	300
  JDZX11-35	35000/√3, 100/√3, 100/√3	0.2/6P	40/100	600
  		0.5/6P	80/100
  	35000/√3, 100/√3, 100/√3, 100/√3	0.2/0.5/6P	50/50/100	300

   

3.Key Features & Benefits

1. Precision & Reliability

• Achieves 0.2-class accuracy for critical metering applications.
• Stable performance under varying loads (1% to 120% rated voltage).

2. Robust Construction

• Epoxy resin cast design resists humidity, dust, and chemical corrosion.
• Withstands short-circuit currents up to 40kA for 1 second.

3. Smart Grid Ready

• Compatible with digital monitoring systems for real-time data integration.
• Supports dual-ratio configurations for flexible grid schemes.

4. Low Maintenance

• 30+ year operational lifespan with no routine servicing required.

4.Applications

Be used in a wide range of industries.

 

Industrial Plants

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

Substation

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

Commercial Buildings

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

 

5.Design & Construction

The 35kV Indoor Voltage Transformer(Potential transformer)’s fully enclosed epoxy resin insulation eliminates air gaps, reducing partial discharge risks. Its compact, wall-mountable design (typical dimensions: 400mm x 300mm x 200mm) saves space in indoor switchgear. The core uses grain-oriented silicon steel for low hysteresis loss, while dual-wound secondary coils ensure measurement and protection circuit isolation.

6.Manufacturing & Quality Control

• Material Selection: High-purity copper windings and vacuum-cast epoxy resin.
• Testing: 100% routine tests include power frequency withstand (70kV/1min), partial discharge, and accuracy verification.
• Certifications: ISO 9001, CE, UL, and RoHS compliance.

7.Why Choose Us?

• Expertise: State-level R&D team with 15+ patents in transformer technology.
• Certifications: ISO 9001, ISO 14001, and ISO 45001-certified production.
• Customization: Tailored designs for unique voltage ratios or environmental needs.
• Support: 24/7 technical assistance and ≤12-week lead times for standard units.

8.FAQs

Q: Does your product comply with ANSI standards?

A: Yes. It meets ANSI C57.13 for North American markets.

Q: How does the insulation prevent aging in high-heat environments?

A: The epoxy resin formulation has a CTI >600, ensuring long-term stability even at 70°C.

Q: Can it be installed in retrofitted substations?

A: Absolutely. The compact design fits most legacy switchgear with ≥500mm clearance.

Q: What surge protection is included?

A: Built-in varistors suppress surges up to 4kV.

Q: Do you offer custom secondary winding configurations?

A: Yes. Contact us for hybrid analog/digital outputs or multi-tap designs.

9.Contact Us

For 35kV Indoor Voltage Transformer(Potential transformer) quotes or technical queries, email xaxd_electric@163.com. Let’s optimize your grid’s performance today!

10.Factory Show

11.Equipment Display

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

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Shanxi Yongchang Group Coal Chemical Project: 10kV Switchgear

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Gansu Jinhui Mining Project: 40.5kV Switchgear

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AVIC Turkey Project: 10kV Reactive Power Compensation Capacitor Bank

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Sekong Coal Mine (Phonesack Group), Laos: Capacitor Banks & Transformers for 22kV Line Compensation

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Heilongjiang Project: Capacitor Banks (Tower-Type)

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Xinjiang Project: Capacitor Banks (Tower-Type)

13.Team and Exhibition