Nanjing Zhuneng Electric Co., Ltd.

186-9497-0015

Feeder protection and control REF615 IEC

Siemens Siprotec 5 7SJ82 Overcurrent & Feeder Protection Relay

MiCOM Substation Applications

PSL691U Feeder protection relay

PRODUCT

Focus on protection relay

Proffesional in relay protection.

Technical team

We have a R&D personnel and highly trained team.

Best service

With new technology,the quality of products can be assured.

Outstanding quality

Commited to give you sincere and thoughtful service.

ADVANTAGE

APPLICATION AREA

Agriculture, forestry and water conservancy

Transformer substation

Urban and rural power grids

Industrial and mining enterprises

Industry

Real estate construction

Business Services

Public utility

Nanjing Zhuneng Electric Co., Ltd

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2008

year

Company Establishment

square

Factory Area Occupied

10

900

8000

people

On Duty Employees

strong

Industrial Enterprise

ABOUT US

Nanjing Zhuneng Electric Co., Ltd. is an innovative technology enterprise specializing in R&D, production, sales, and engineering technology consulting services for power system automation secondary equipment and power comprehensive automation systems. The company advocates the principles of "pragmatism, refinement, and collaboration." , innovation" as the core corporate culture, and strive to form a good atmosphere in which employee development, self-worth realization and corporate development are harmonious. The main products include: relay protection, SCADA, distribution environment monitoring system, energy management system, communication protocol converter, station communication management , and automation supporting products.

PARTNER

SERVICE

Pre sales and after-sales service

Our professional marketing and after-sales service team provides you with comprehensive pre-sales consultation, after-sales service and other services

Data Download

Download company product related documentation online. Such as product user manuals, various series of product information documents, etc.

Customization

We provide OEM and ODM services for automation products such as relay protectors and power instruments

Our needs

We need high-quality raw materials to serve our customers

按钮

Current differential protection relay testing procedure

NEWS

03 2025 / 04

LCD Digital Smart Power Meter Multi-Function Electric Energy Wattmeter Measures Current Voltage Khw Hz RS485 Modbus Usefully

03 2025 / 04

Current differential protection relay testing procedure

Current differential schemes

31 2025 / 03

Microprocessor Distance Relay Protection

Discriminating zones of protection can be achieved using distance relays, provided that fault distance is a simple funct

14 2025 / 03

Overcurrent Relay Testing Procedure

The article outlines a step-by-step procedure for testing an overcurrent relay, emphasizing visual inspection, verification of settings, and secondary injection tests to ensure proper operation during faults. It involves inspecting the relay for damage, checking its settings, connecting test equipment, gradually increasing current to determine pickup values, and verifying these against set parameters.