Three-Phase Primary Current Injection System for Hv/Mv Switchgear Testing

1 / 5

Three-Phase Primary Current Injection System for Hv/Mv Switchgear Testing

Send Inquiry

Product Description

🔹 Product Description

Three-Phase Primary Current Injection System for HV/MV Switchgear Testing

The DDG Series Primary Current Injection Test Set is specifically engineered for current load tests and temperature rise tests on various circuit breakers, switch gears, CT/PT, and other electrical equipment. This system is widely utilized across power divisions and industrial mining enterprises for reliable equipment verification.

⚙️ Features

✔ Intuitive Reading: Adopts a digital meter head displaying current, voltage, and temperature factors directly for convenient observation.

✔ Accurate Measurement: High precision measurement ensuring reliable and accurate test values.

✔ Digital Protection: Fully digitized processing for overcurrent protection and timing settings.

✔ Operating Modes: Supports both manual and automatic operation.

✔ Intelligence: Capable of automatically generating performance curves and standard test reports.

✔ Current Recovery Tracking: Automatically adjusts and tracks current to set levels as circuit impedance changes during heating.

✔ Temperature Inspection: Supports up to 32 inspection channels to record and generate temperature rise curves automatically.

✔ Switch Protection: Measures action time for switchgear and thermal relays via contact or current on/off discrimination.

📊 Technical Specifications

◈ Input AC two-phase 380V 50Hz

◈ Output single-phase 0-20kA AC high current (Accuracy > 0.2 level)

◈ Standard sine wave output with ripple factor < 0.3%

◈ Output opening voltage: 10V / 15V / 20V

◈ Current Stability: 0.2% | THD: < 1%

◈ Protection Settings: Overcurrent, Overvoltage, Overheating

◈ Time Measurement: 0.01S - 99999.99S (Accuracy: 0.001S)

◈ Temperature Rise Range: 10-800 ℃ (12/24/48/64 channels)

Model	Rated Capacity (KVA)		Rated Input		Rated Output
Model	Regulator	Injector	Current (A)	Voltage (V)	Current (KA)	Voltage (V)
DDG-3/500	3	3	13.6	220	0.5	6
DDG-9/1500A	9	9	40.0	220	1.5	6
DDG-18/3000	18	18	45.0	400	3	6
DDG-24/4000	24	24	60.0	400	4	6
DDG-30/5000	30	30	75.0	400	5	6
DDG-90/15000	90	90	225.0	400	15	6
Custom designs available based on technical requirements.

🏢 Manufacturing & Quality

Established in 2005, the manufacturer possesses over 20 years of expertise in R&D, manufacturing, and marketing of power electrical testing products. These solutions are widely applied in railroad, energy conservation, petrochemical, and aerospace industries. With ISO9001 certification, all products conform strictly to international IEC and state standards.

📜 Certifications & Packing

🤝 Global Cooperation

❓ Frequently Asked Questions

Q1: Is the system capable of fully automatic testing?

Yes, the DDG Series supports both manual and automatic operating modes. The software can automatically track the set current and generate standard test reports without constant personnel monitoring.

Q2: Can the current output be customized for specific requirements?

Absolutely. While we offer standard models from 500A to 15000A, non-standard customization is available to meet your specific technical parameters for voltage and current.

Q3: How do you ensure the quality of the testing equipment?

We use high-quality imported components and perform three separate quality inspections before shipment. All products are manufactured in strict accordance with ISO9001 and IEC standards.

Q4: What is the lead time for a standard order?

Generally, the delivery time is within 10 working days after the order is confirmed, depending on the specific customization requirements and existing stock.

Q5: What kind of after-sales support do you provide?

We offer a one-year warranty and free lifelong consulting services. Support is provided through various channels, including video calls, email, and technical door-to-door assistance when necessary.

Q6: How are the products protected during international shipping?

For export, all goods are uniformly packed in robust, non-fumigation wooden boxes to ensure the equipment arrives safely and meets international shipping standards.