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Industry Information

Current Transformer Design

A current transformer (CT) is an essential instrument transformer widely applied in power generation, transmission, and distribution systems. Its primary function is to step down high alternating current in power lines to a standardized low current signal for accurate measurement, metering, and relay protection. Modern current transformer design focuses on high measurement accuracy, low electromagnetic loss, good linearity, and strong anti-interference capability to adapt to complex grid operating conditions.

2026-09-07

Current Transformer Vs Voltage Transformer

Current transformers (CT) and voltage transformers (VT, also known as potential transformers PT) are two core instrument transformers widely deployed within power‑grid systems. Both serve to step down high‑level electrical signals to safe, measurable values for meters, protection relays and monitoring devices, yet they differ fundamentally in working principles, connection modes, application purposes and handling requirements.

2026-09-04

Current Transformer Applications

Current transformers (CTs) are essential instrument transformers designed to step‑down high primary current into a standardized low‑value secondary current for measurement, metering and protection. They isolate high‑voltage power systems from low‑voltage control circuits, ensuring operator safety while converting large currents to levels compatible with common electrical devices.

2026-09-03

Differences Between Zero Sequence Current Transformer And Current Transformer

The zero‑sequence current transformer (core balance current transformer)is an important measuring instrument in power systems, which is used to measure zero‑sequence current. A power system consists of three phases: Phase A, Phase B and Phase C, and each phase can operate independently. Zero‑sequence current occurs simultaneously in all three phases. By adopting zero‑sequence current transformers, we can measure such current to guarantee the normal operation of power systems. Conventional current transformers are designed to measure load operating current, while zero‑sequence current transformers are specialized for zero‑sequence current measurement. Therefore, zero‑sequence current transformers require special structures and measuring capabilities to acquire accurate zero‑sequence current readings.

2026-09-01

Company News

Italian Clients Visit Tianrui Group's Nanjing Branch In-Depth Exchanges And Production Line Tour Pave The Way for New Cooperation

On September 17, 2025, Tianrui Group’s Nanjing Branch welcomed distinguished guests from Italy. The clients made a special trip to Nanjing with the aim of gaining a comprehensive understanding of Tianrui Group’s technological capabilities, product portfolio, and manufacturing strength

2025-09-17

Tianrui Electronic Nanjing Branch Organizes Spring Team-Building Activities

Nanjing, April 29, 2025 - To deepen team collaboration awareness, facilitate cross-departmental communication, relieve work pressure, stimulate team vitality, and enhance mutual understanding, Hubei Tianrui Electronics Co., Ltd.'s Nanjing Branch organized an outdoor team-building event for all emplo

2025-04-29

The residual current transformer of our company passed the third party inspection center test successfully

The residual current transformer developed by our company was commissioned by the National Fire Electronic Product Quality Supervision and Inspection Center for third-party inspection in May 2017

2020-08-19

Exhibition Information

Tianrui Electronic Co., Ltd. Was Invited To Participate in 2024 ELECTRIC & POWER VIETNAM

On September 3-6, 2024, Tianrui Electronics Co., Ltd. participated in 2024 ELECTRIC & POWER in Ho Chi Minh City, Vietnam, which was attended by more than 200 enterprises from all over the world.

2024-09-14

Tianrui Electronic Successfully Participated 2024 CWIEME

From May 14 to 16, 2024, Tianrui Electronics participated in 2024CWIEME "German Coil, insulation material, motor and transformer Manufacturing Exhibition" held in Berlin International Convention and Exhibition Center, there are totally over 600 enterprises from Germany, UK, India and other co

2024-06-04

Tianrui Electronics successfully concluded at CIRED2023 exhibition

On June 12, 2023, Tianrui Electronics participated in the CIRED2023 International Power Supply Conference and Exhibition and Power Grid Innovation and Sustainable Development Summit Forum in Rome, Italy. This conference will promote the high-quality development of future power distribution technolog

2024-03-20

Current Transformer Design

Current Transformer Vs Voltage Transformer

Current Transformer Applications

Differences Between Zero Sequence Current Transformer And Current Transformer

Italian Clients Visit Tianrui Group's Nanjing Branch In-Depth Exchanges And Production Line Tour Pave The Way for New Cooperation

Tianrui Electronic Nanjing Branch Organizes Spring Team-Building Activities

The residual current transformer of our company passed the third party inspection center test successfully

Tianrui Electronic Co., Ltd. Was Invited To Participate in 2024 ELECTRIC & POWER VIETNAM

Tianrui Electronic Successfully Participated 2024 CWIEME

Tianrui Electronics successfully concluded at CIRED2023 exhibition

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