KEMA & ISO 9001/14001 Certified|Exporting to 50+ Countries (IEC 61869-3 / IEEE C57.13)
24/7 Global Engineering Hotline: 86 18852046268|sales@potentialtransformers.com
中文Mainland ChinaEnglishUnited StatesFrançaisFranceDeutschGermanyLietuviųLithuaniaCymraegUnited KingdomEestiEstoniaMagyarHungaryالعربيةSaudi Arabia한국어South KoreaSuomiFinlandNorskNorwayPolskiPolandEspañolLatinoaméricaCatalàEspaña (Cataluña)हिन्दीIndiaSvenskaSwedenMaltiMaltaOʻzbekUzbekistanاردوPakistanNederlandsNetherlandsБългарскиBulgariaLatviešuLatviaDanskDenmarkRomânăRomaniaไทยThailandÍslenskaIcelandTiếng ViệtVietnamSlovenčinaSlovakiaУкраїнськаUkraineעבריתIsrael日本語JapanItalianoItalyPortuguêsPortugalРусскийRussiaKreyòl ayisyenHaitiČeštinaCzechiaGaeilgeIrelandবাংলাBangladeshTürkçeTürkiyeفارسیIranΕλληνικάGreeceBosanskiBosnia and HerzegovinaMelayuMalaysiaSlovenščinaSloveniaSrpskiSerbiaBahasa IndonesiaIndonesiaHrvatskiCroatia

Potential Transformers
& Power VTs

B2B
HomeProductsAI SpecAboutBlogContact

International Accreditation & Testing

Certified by KEMA Labs (Netherlands), CESI, and CNAS National HV Testing Facility

IEC 61869-3IEEE C57.13KEMA TYPE TESTEDISO 9001:2015ISO 14001:2015CE CERTIFIED
PotentialTransformers.com

Global B2B Instrument Transformer Portal

PotentialTransformers.com is an international OEM & EPC supplier specializing in cast epoxy resin dry-type instrument transformers (0.5kV to 35kV) — voltage transformers (VT/PT), current transformers (CT) and combined CT+VT units — for power utilities, switchgear builders and heavy industry.

100% Factory Partial Discharge Tested

Follow Us & Social Channels

FacebookLinkedInYouTubeInstagramTikTok

Product Categories

  • Voltage Transformers
  • Current Transformers
  • Combined Instrument Transformers

Engineering Tools

  • AI Data Center Series
  • AI Spec & Selection Studio
  • AI Is Hungry for Power: How Many Instrument Transformers Does an AI Data Center Need?
  • From 110 kV to the GPU: CTs and PTs Across an AI Data Center Power Chain
  • High Voltage Faraday Lab Testing
  • Request Technical Datasheets

Global Support

  • Room 1602, 16/F, Wing On Centre, 111 Connaught Road Central, Sheung Wan, Central & Western District, Hong Kong
  • 86 18852046268
  • sales@potentialtransformers.com
  • Regional Hubs: Dubai, UAE | Frankfurt, Germany | Houston, USA

© 2026 PotentialTransformers.com. All Rights Reserved. Engineered for Global High-Voltage Grids.

IEC 61869-3 CompliantIEEE C57.13 CompliantKEMA Type Tested
High Voltage Equipment Directory

Voltage & Current Transformers

Filter through our complete catalog of IEC 61869-3 & IEEE C57.13 compliant instrument transformers (0.5kV to 35kV): Cast Epoxy Resin Dry-Type Voltage Transformers (VT/PT), Current Transformers (CT) and Combined CT+VT units.

Category3
Voltage
Showing 382 Potential Transformer models
JSZV29-10R Indoor Three-phase Epoxy Resin Casting Voltage Transformer
10kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JSZV29-10R

Indoor Three-phase Epoxy Resin Casting Voltage Transformer

JSZV29-10R Indoor Three-phase Epoxy Resin Casting Voltage Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 10kV. Design: insulation level 12/42/75kV, Dry Epoxy Resin, 50/60Hz operation.

Accuracy ClassOn request
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
View Specs
JDZ18-20R Indoor Single-phase Epoxy Resin Casting Voltage Transformer
20kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JDZ18-20R

Indoor Single-phase Epoxy Resin Casting Voltage Transformer

JDZ18-20R Indoor Single-phase Epoxy Resin Casting Voltage Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 20kV, accuracy class 0.2 / 0.5. Design: insulation level 24/65/125kV, Dry Epoxy Resin, 50/60Hz operation.

Accuracy Class0.2 / 0.5
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
View Specs
JSZV2-20R Indoor Three-phase Epoxy Resin Casting Voltage Transformer
20kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JSZV2-20R

Indoor Three-phase Epoxy Resin Casting Voltage Transformer

JSZV2-20R Indoor Three-phase Epoxy Resin Casting Voltage Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 20kV, accuracy class 0.2 / 0.5. Design: insulation level 24/65/125kV, Dry Epoxy Resin, 50/60Hz operation.

Accuracy Class0.2 / 0.5
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
View Specs
JSZW-6WFR Outdoor Three-phase Silicone Rubber Voltage Transformer 6kV with Fuse
6kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JSZW-6WFR

Outdoor Three-phase Silicone Rubber Voltage Transformer 6kV with Fuse

Outdoor three-phase silicone rubber composite insulation voltage transformer, 6kV rated, with primary fuse, for voltage measurement and protection in three-phase power distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Silicone rubber construction, excellent weather resistance, anti-UV, anti-pollution, suitable for harsh outdoor environments. Accuracy classes: 0.2, 0.5, 3P. Customizable ratios and specifications.

Accuracy Class0.2/0.5/3P
Insulation TypeSilicone Rubber
Rated BurdenOn request
ComplianceIEC 61869 / GB/T 20840
View Specs
JSZV18-20R Indoor Three-phase Epoxy Resin Casting Voltage Transformer
20kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JSZV18-20R

Indoor Three-phase Epoxy Resin Casting Voltage Transformer

JSZV18-20R Indoor Three-phase Epoxy Resin Casting Voltage Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 20kV, accuracy class 0.2 / 0.5. Design: insulation level 24/65/125kV, Dry Epoxy Resin, 50/60Hz operation.

Accuracy Class0.2 / 0.5
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
View Specs
JSZV18-10DR2 Indoor Three-phase Epoxy Resin Casting Voltage Transformer
10kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JSZV18-10DR2

Indoor Three-phase Epoxy Resin Casting Voltage Transformer

JSZV18-10DR2 Indoor Three-phase Epoxy Resin Casting Voltage Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 10kV. Design: insulation level 12/42/75kV, Dry Epoxy Resin, 50/60Hz operation.

Accuracy ClassOn request
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
View Specs
JSZV19-10R Indoor Three-phase Epoxy Resin Casting Voltage Transformer
10kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JSZV19-10R

Indoor Three-phase Epoxy Resin Casting Voltage Transformer

JSZV19-10R Indoor Three-phase Epoxy Resin Casting Voltage Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 10kV. Design: insulation level 12/42/75kV, Dry Epoxy Resin, 50/60Hz operation.

Accuracy ClassOn request
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
View Specs
ALH-0.66III Indoor Low Voltage Current Transformer 0.66kV Busbar Type
0.66kV
Current Transformer50/60Hz

ALH-0.66III

Indoor Low Voltage Current Transformer 0.66kV Busbar Type

Indoor low voltage current transformer, 0.66kV rated, type III, busbar fixed installation, for current measurement and metering in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Large capacity, high accuracy, suitable for three-phase vertical busbar arrangement. Easy installation, wide range of current ratios available. Customizable ratios and specifications.

Accuracy Class0.2/0.5
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
ComplianceIEC 61869 / GB/T 20840
View Specs
JDZ6-0.66 Indoor Single-phase Epoxy Resin Casting Low Voltage Transformer 0.66kV
0.66kV
Voltage Transformer (VT) / Potential Transformer (PT)50/60Hz

JDZ6-0.66

Indoor Single-phase Epoxy Resin Casting Low Voltage Transformer 0.66kV

Indoor single-phase epoxy resin casting low voltage transformer, 0.66kV rated, for voltage measurement and protection in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Epoxy resin construction, compact size, light weight, suitable for indoor installation. Accuracy classes: 0.5, 1.0, 3.0. Customizable ratios and specifications.

Accuracy Class0.5/1.0/3.0
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
ComplianceIEC 61869 / GB/T 20840
View Specs
LRZ-10 10kV Indoor Epoxy Cast Single-Phase Current Transformer for Switchgear Metering & Protection
0.72/3kV
Current Transformer50/60Hz

LRZ-10

10kV Indoor Epoxy Cast Single-Phase Current Transformer for Switchgear Metering & Protection

Low voltage indoor epoxy resin cast current transformer, rated 0.72/3kV. Suitable for low voltage distribution systems. Rated frequency 50/60Hz, secondary current 5A or 1A. Ambient temperature range -40°C to +40°C. Compliant with IEC 61869 and GB/T 20840 standards. Epoxy resin cast construction, reliable performance, easy installation. Customizable current ratio and accuracy class.

Accuracy ClassOn request
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
ComplianceIEC 61869
View Specs
LA-10Q Indoor Single-phase Epoxy Resin Casting Current Transformer
10kV
Current Transformer50/60Hz

LA-10Q

Indoor Single-phase Epoxy Resin Casting Current Transformer

LA-10Q Indoor Single-phase Epoxy Resin Casting Current Transformer is designed for metering and protection in power systems. Key ratings: primary voltage 10kV, secondary voltage 5A, accuracy class 0.2S/0.5S, rated burden 5VA. Design: Dry Epoxy Resin, 50/60Hz operation.

Accuracy Class0.2S/0.5S
Insulation TypeDry Epoxy Resin
Rated Burden5VA
View Specs
LZZB2-10 Indoor Single-phase Epoxy Cast Current Transformer 10kV
10kV
Current Transformer50/60Hz

LZZB2-10

Indoor Single-phase Epoxy Cast Current Transformer 10kV

LZZB2-10 Indoor Single-phase Epoxy Cast Current Transformer 10kV is designed for metering and protection in power systems. Key ratings: primary voltage 10kV, secondary voltage 5A/1A, accuracy class 0.2/0.5. Design: Dry Epoxy Resin, 50/60Hz operation. Conforms to IEC 61869 / GB/T 20840.

Accuracy Class0.2/0.5
Insulation TypeDry Epoxy Resin
Rated BurdenOn request
ComplianceIEC 61869 / GB/T 20840
View Specs
← Prev1…272829303132Next →