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Power Secondary Equipment

Your Professional Power Secondary Equipment Supplier

 

Baoding Tianwei Baogian Power Equipment Co., Ltd. is a professional manufacturer and solution provider for intelligent power equipment. We focus on high-voltage transformers, switchgear, box-type substations, and intelligent monitoring and fault early warning systems. Our products are widely used in power transmission and distribution networks, industrial manufacturing, commercial infrastructure, and renewable energy projects. With certified quality systems and strong engineering capability, we deliver safe, reliable, and cost-effective solutions to domestic and international customers.


Comprehensive Power Equipment Capability
We offer a complete range of transformers, switchgear, substations, and intelligent monitoring systems covering 0.4kV–220kV and up to 100,000kVA, supporting power grids, industry, infrastructure, and renewable energy projects.

 

Certified Quality
Our operations follow ISO9001, ISO14001, and ISO45001 systems. Full in-house production and testing equipment ensure stable performance, safety, and consistent compliance with international standards.

 

Custom Solutions
An experienced engineering team, supported by long-term cooperation with leading universities, provides project analysis, customized designs, and reliable solutions for complex and high-demand applications.

 

Full Lifecycle Service Support
From technical consultation and system design to installation guidance, maintenance, and upgrades, we deliver long-term support to ensure reliable operation and lower total ownership cost.

 

 
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Parameter
 

Measurement Range

5pC - 10,000pC

Detection Bandwidth

300MHz - 3GHz

Interface Type

BNC connector

Impedance Matching

50Ω

Sensitivity

5pC

Transfer Impedance

≥5mV/mA

Protection Rating

IP65

 

Types of Power Secondary Equipment
 

The power secondary equipments produced by our company mainly include the following types:

GIS Micro-water Density On-line Monitoring System

Transformer Fault Early Warning System
Transformer Fault Early Warning System (TFEWS) uses continuous monitoring of key parameters like dissolved gases (hydrogen, acetylene), temperature, vibrations, and oil quality to detect subtle signs of developing faults in power transformers before they cause catastrophic failure, preventing outages.

 

GIS On-Line Monitoring System
GIS (Geographic Information System) Online Monitoring System combines geographic data with real-time information, often through web services, to track, analyze, and visualize assets, performance, or environmental conditions across a location, enabling proactive management, alerts for issues (like partial discharge in electrical gear or system performance), and better decision-making using interactive, map-based dashboards

 

Switchgear Fault Early Warning System
Switchgear Fault Early Warning System (FEWS) uses integrated sensors and real-time data analytics to monitor electrical switchgear health, detecting subtle signs of deterioration like partial discharge, overheating, or humidity changes before they cause major failures, preventing costly outages and enabling predictive maintenance instead of reactive repairs.

 

Features of Power Secondary Equipment

Comprehensive Monitoring

Simultaneously tracks SF6 gas concentration, oxygen levels, temperature, and humidity in real-time.

01

Intelligent Multi-Level Alarms

Triggers sound, light, voice, and remote notifications, coupled with automatic forced ventilation upon gas leakage or oxygen deficiency.

02

Advanced Data Management

Enables historical data query, storage, and intuitive trend curve analysis for informed decision-making.

03

Scalable & Adaptable Design

Easily configurable to support multiple monitoring points across various zones and expanding facility needs.

04

Smart Human Interaction

Features integrated PIR motion sensing to activate specific functions when personnel are detected nearby.

05

 

Applications of Power Secondary Equipment
 
SF6 Gas Leakage Online Monitoring System
 

Monitoring & Control

Uses instruments, transducers, and control panels to provide real-time data (voltage, current, status) for operators to manage the grid and operate primary assets like breakers and switches.

 

Protection

Protective relays detect faults (overcurrent, undervoltage, etc.) and trigger circuit breakers to isolate faulty sections, preventing damage and outages, common in feeder, transformer, generator, and motor protection.

Online Partial Discharge Monitoring System For Transformer
GIS Micro-water Density On-line Monitoring System suppliers
 

Automation & Interlocking

Enables automated sequences, such as automatic reclosing after temporary faults, and interlocking schemes to prevent unsafe operations (e.g., preventing a breaker from opening under load when it shouldn't).

 

Data & Communication

Digital systems use Intelligent Electronic Devices (IEDs) and fiber optics for secure data collection, system visualization, and remote monitoring (SCADA), reducing copper wiring and improving situational awareness.

GIS Micro-water Density On-line Monitoring System best

 

Guidelines for Inspection of Power Secondary Equipment
Online Partial Discharge Monitoring System For Transformer suppliers
Online Partial Discharge Monitoring System For Transformer factory
Transformer Optical Fiber Winding Temperature Measurement System
Online Partial Discharge Monitoring System For Transformer suppliers

Environmental Requirements
Temperature and Humidity: Maintain an ambient temperature of 5°C to 45°C. Ensure relative humidity levels are within 5% to 90% to prevent condensation, which can cause short circuits or corrosion.
Dust and Harmful Gases: Dust particles can cause static electricity buildup and affect the connectivity of metal contacts, leading to equipment malfunction. In environments with low relative humidity, static electricity is more likely to occur. Ensure the air is free from corrosive gases such as salts, acids, or sulfides, which accelerate the aging of components and corrosion of metal parts.

 

Ventilation Requirements
Ensure adequate ventilation to dissipate heat generated during equipment operation. For example, devices like the MSR36-40 router rely on a left-in, rear-out airflow design for cooling.
Keep the intake and exhaust vents unobstructed, maintaining a clearance of at least 10 cm. Install equipment in well-ventilated areas with a functioning air circulation system to prevent overheating.

 

Static Electricity Protection
Static electricity can damage sensitive components within secondary equipment. Proper anti-static measures include:
Grounding: Ensure the equipment and flooring are well-grounded.
Dust Control: Keep the indoor environment clean and dust-free.
Humidity Control: Maintain an appropriate balance of temperature and humidity to reduce static buildup.

 

Equipment And Cabinet Requirements
Cabinet Design: Ensure the cabinet has an efficient ventilation and cooling system. The cabinet should be sturdy enough to support the weight of the equipment and accessories. Maintain enough space inside the cabinet to facilitate heat dissipation; allow a minimum clearance of 0.8 meters at the front and back for maintenance purposes.
Installation Space: The cabinet height should not be less than 3 meters in indoor environments to ensure proper air circulation and accessibility.

 

Maintenance Of Components
Routine Cleaning: Regularly clean equipment surfaces to prevent dust accumulation, which can interfere with performance.
Corrosion Checks: Inspect connectors and metallic parts for signs of rust or corrosion, particularly in humid environments.
Connection Integrity: Ensure all plugs, connectors, and cables are securely fastened.

 

 

Ordering Process

1. Contact Customer Service


2. Provide Custom Details


3. Free Design


4. Confirm Design Drawings


5. Payment Start Order


6. Arrange Start Production


7. Completed by Appointment Time


8. Arrangements for


9. Confim Receipt

Online Partial Discharge Monitoring System For Transformer factory

 

Packaging and Shipping
 

Packaging

Wooden Crate, Steel Frame with Shrink Wrap

Shipping

Shipping by sea, by air, by express are acceptable. According to your requirements.

 

 

Our Factory

 

Baoding is located in the middle of the North China Plain, more than 30 kilometers away from Xiong'an New Area.

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Our Certificates

 

Quality Management System certification GB/T19001-2016/IS09001:2015, Environmental Management System certification GB/T24001-2016/IS014001:2015, Occupational Health and Safety Management System certification GB/T45001-2020/IS045001:2018, Certified Quality Testing Accredited by CNAS

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FAQ

 

Q: How long is your delivery time?

A: We usually arrange shipment within 5-7 working days after checking the payment. However, for example, the delivery time of the complete set of test devices will be a little longer, which needs to be checked in real time.

Q: Do you provide samples? Is it free or extra?

A: Yes, we could offer the sample, but not for free; you need pay charge and the cost of freight.

Q: What is your term of payment?

A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 50% T/T in advance, balance before shipment.

Q: What is the payment method?

A: We can accept Bank Transfer, T/T, L/C.

Q: Will you provide OEM service?

A: OEM & ODM services available.

As one of the leading power secondary equipment manufacturers and suppliers in China, we also support customized service. With over 20 years' experience, we warmly welcome you to buy high quality power secondary equipment made in China here from our factory. For price consultation, contact us.