Primary Current Injection

The Best Primary Current Injection Manufacture!

Wuhan UHV Power Technology Co.,Ltd.located in Wuhan East Lake New Technology Development Zone and have convenient transportation access. We are professional OEM Manufacturer which is engaged in the research, development, sale and service of High Voltage Testing Equipment including: Resonant Test System, High Voltage Tester,Transformer Tester,Circuit Beaker Tester, Relay Protection Tester, Primary Current Injector, etc.

Why Choose Us?

Technology Certification

Obtained 6pc Computer Software Copyright Registration Certificates, 14 product patent certificates and 1 pc ISO 9001:2005 Quality Management System Certificate.

Production Capacity

Upgraded 5 products, added 4 production lines, added 2 AC resonance test system production lines, and sold a total of 3,000 sets of AC resonance test systems.

Guarantee Both Quality and Quantity

UHV implements the terms and conditions stipulated in the contract strictly, complies with product standard and multi-inspection.All products will be assembled and test strictly accord with our product process standard. All qualified products will be issued factory inspection reports and certificate labels.Defect products or non-qualified products won’t be allowed to make deliver.

Global Sales Market

Our products are not only selling well in mainland China, but also exported to the countries around the world including Malaysia, Indonesia, Vietnam, Philippines, Saudi Arabia, The United Arab Emirates,America, Australia, Argentina,Chile, Brazil etc.

Types of Primary Current Injection

Temperature Rise Test

A temperature rise tester is a test device used to measure the temperature changes of motors, transformers, cables, switches and other equipment during operation.

Primary Current Injection Test Kit

The primary current injection test kit is a professional test equipment used to detect the current carrying capacity of power equipment and the performance of protective devices.

Primary Injection Test Set

Our primary injection test set uses a 24-bit high-precision ADC, which is several times more accurate than the traditional 16-bit ADC. It can capture tiny voltage and current fluctuations and effectively prevent potential faults.

Product Parameters

Model	Capacity (KVA)	Junior Range		Secondary Range		Dimensions (mm) L×W×H	Weight (KG)	Structural Style
Model	Capacity (KVA)	V1	A1	V2	A2	Dimensions (mm) L×W×H	Weight (KG)	Structural Style
DDG-500	3	220	15	6	500	430×338×550	45	Integrated structure
DDG-1000	6	220	27	6	1000	500×380×600	65	Integrated structure
DDG- 2000	12	380	31.6	6	2000	580×400×750	105	Integrated structure
DDG- 2500	15	380	39.5	6	2500	600×430×790	145	Integrated structure
DDG- 3000	18	380	47	6	3000	630×440×810	170	Integrated structure
DDG- 4000	24	380	63	6	4000	640×450×820	180	Integrated structure/ split Structure
DDG- 5000	30	380	79	6	5000	600×430×900 300×500×500	145 135	Split Structure
DDG- 6000	36	380	95	6	6000	600×430×900 300×500×500	150 140	Split Structure
DDG- 8000	48	380	126	6	8000	600×450×950 350×550×550	180	Split Structure
DDG- 10000	60	380	158	6	10000	800×600×1100 380×550×600	200	Split Structure

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Advantages of Primary Current Injection

01/

High Accuracy

Our test sets feature a six-and-a-half digit LCD display for highly accurate readings. This ensures precise measurement of both primary current and secondary current, making your tests more reliable.

02/

Compact and Portable Design

Our primary current injection are designed to be compact and lightweight, making them easy to transport and use in various testing environments.

03/

Advanced Features

Unique features such as automatic transformer ratio detection and polar measurement make our test sets more efficient. These advanced functions save time and improve testing accuracy.

04/

Wide Range of Capacities

Whether you’re working with low-voltage systems or high-power applications, we have a solution for you.

05/

Durability

Built with high temperature resistant materials and designed for heavy-duty use, our test sets offer long-lasting performance even under demanding conditions.

06/

Improve work efficiency‌

By providing stable current output, Primary Current Injection Test Set simplify the testing process of electrical equipment and improve the accuracy and efficiency of testing.

Main Uses of Primary Current Injection

Verification of Protection Systems

Primary current injection is used to verify that protection systems, such as relays and circuit breakers, are operating properly to protect electrical equipment and ensure system safety.

Testing at Full Load

Primary current injection enables testing at full load conditions, providing a comprehensive assessment of the equipment's performance under maximum current levels.

Identifying Faults

The test helps identify any faults or weaknesses in the protection system or the equipment itself. It allows engineers to pinpoint potential issues that could compromise the reliability and safety of the electrical system.

Commissioning and Maintenance

Primary current injection are commonly performed during the commissioning of new installations and as part of routine maintenance procedures. This ensures that the protective devices are properly calibrated and functioning as intended.

Compliance with Standards

Many electrical standards and regulations mandate the testing of protection systems using primary current injection to ensure that the equipment meets safety and performance requirements.

Realistic Simulation

Primary current injection provides a realistic simulation of actual operating conditions, allowing for testing under full load and high-current scenarios. This helps assess how the system and protective devices will perform in real-world situations.

Key Differences Between Primary and Secondary Current Injection

The primary difference between primary and secondary current injection testing lies in their approach and scope. A primary current injection test set injects a multiple of the fault-rated current of the breaker through the breaker, measuring the trip time. This method tests the breaker in a scenario as close to real-world conditions as possible.

On the other hand, a secondary current injection test kit injects a ratio of the fault-rated current directly into the trip unit, measuring how long it takes for the breaker to trip. This method focuses on testing the timing and function of the trip unit rather than the entire breaker system.

Usage Requirements

Safe handling and staffing
As the equipment is heavy, it must be moved with care to ensure personal safety. At the same time, set up a clear warning area.

Equipment grounding
Ensure that the instrument is well grounded and that the step-up transformer and operating table are reliably grounded to ensure safe operation.

Power supply check
Before starting work, check whether the power supply has enough capacity to avoid overheating of the power cord or voltage reduction, which may affect the normal operation of the equipment.

Working environment
Ensure that the work site is free of flammable materials. When conducting the temperature rise test, there should be enough fire extinguishing equipment.

Abnormal handling
If any abnormality is found during the test, turn off the air switch power immediately and continue the test after the cause is identified. After the test, be sure to zero the regulator and cut off the power supply according to the air switch, then remove the test wiring to ensure safety.

Easy Online Customization

1. Please contact our online sales team via email at tina@hvtest.cc and provide the products, quantity and your customization requirements.
2. After receiving your customization requirements, our professional technicians will contact you by email to confirm your order requirements.
3. After everything is confirmed, we will send you a sample for your approval.
4. After getting your approval, we will send you a quotation for you to place an order and we will start processing your custom order.
5. After confirming and receiving 30% advance payment, we will start mass production.
6. Our technicians will control the quality during the production process.
7. According to the delivery time, we will arrange shipment after receiving the remaining payment.

Our Factory

If you have any requirements, pls feel free to contact us, and we will always right be here ready to serve for you.

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FAQ

Q: How long is the lead time?

A: UHV's lead time may vary depending on the model and customization requirements. Typically, standard models can be shipped quickly within 15-20 business days. For more accurate lead times, especially for customized models, please contact our sales team with your specific requirements.

Q: What are your payment terms?

A: Usually 30% deposit in advance, 70% balance against the copy of B/L. T/T, Trade Assurance, Paypal, Western Union, Credit Card, L/C, etc.

Q: What shipping options are available?

A: UHV products are typically shipped via express delivery to ensure timeliness and the integrity of the goods without damage. This shipping method is designed to provide customers with fast and secure delivery services, ensuring that you receive your products undamaged as quickly as possible. For specific shipping options, including costs and estimated delivery times, it is recommended to inquire during the purchase process or by contacting UHV customer service for detailed information.

Q: What is your after-sale service

A: We have 10 seasoned technical engineer as the after-sale service team.it is lead by our duty manager. We promise that our engineer can give answers within 1 hour and deal with equipment failure within 24 hours in time.

Q: What’s the warranty period?

A: UHV provides one year warranty and lifetime maintenance. Free repair for mechanical failure and parts damage (no human factors and force majeure factors) under warranty (replacement parts except wearing parts are provides by UHV free of charge). Charging at reasonable cost when out of warranty.

Q: How do I choose the right equipment for my needs?

A: Choosing the right equipment depends on several factors, including the specific tests you need to perform, the range of applications you’re dealing with, and your budget. UHV offers a wide range of electrical testing equipment suitable for various applications, from protection relay testing to power quality analysis. You can consult with UHV sales engineers, who can provide expert advice based on your specific requirements and help you select the most appropriate equipment.

Q: Do you provide training on how to use the equipment?

A: Yes. UHV provides comprehensive training on how to use their equipment effectively and safely. Training can be conducted in various formats, including online tutorials, and in some cases, hands-on training sessions (subject to location and availability). This ensures that customers can maximize the potential of their UHV equipment and perform tests with confidence. For more information on training options, you can contact UHV directly.

Q: Can WUHV relay protection testers be customized?

A: Yes, UHV offers customization services to meet specific testing needs and application scenarios. If you have special requirements, please contact our sales team to discuss the possibility of customized solutions.

As one of the leading primary current injection manufacturers and suppliers in China, we warmly welcome you to buy high-grade primary current injection made in China here from our factory. For price consultation, contact us.

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