Three-Phase Primary Current Injection System for Switchgear Temperature Rise Testing

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Three-Phase Primary Current Injection System for Switchgear Temperature Rise Testing

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Product Description

Product Overview

The DDG Series Primary Current Injection Test Set is a high-performance solution designed for current load and temperature rise testing. It is essential for verifying the reliability of circuit breakers, switchgear, CT/PT, and other electrical apparatus in power divisions and industrial mining environments.

Key Features

Intuitive Digital Display: Real-time monitoring of current, voltage, and temperature factors via digital meter heads.

High Precision: Superior measurement accuracy for reliable experimental data.

Digital Protection: Fully digitized overcurrent and timing settings for precise equipment safety.

Dual Modes: Supports both manual and automatic operating modes for flexibility.

Intelligent Reporting: Automatically generates performance curves and standardized test reports.

Current Recovery Tracking: Automatically compensates for circuit impedance changes during heating.

Auto Temperature Rise: Set current and time for autonomous testing without constant monitoring.

Multi-Channel Inspection: Up to 32 inspection points with automatic temperature rise curve generation.

Technical Specifications

Input: AC two-phase 380V 50Hz
Output: 0-20kA AC high current (True RMS adjustable)
Output Waveform: Standard sine wave (THD < 1%)
Opening Voltage: 10V / 15V / 20V
Stability: 0.2%
Time Measurement: 0.01s - 99999.99s (Accuracy: 0.001s)
Temp Channels: 12/24/48/64 channels available
Temp Range: 10-800 ℃

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	40.00	220	1.5	6
DDG-18/3000	18	18	45.00	400	3	6
DDG-24/4000	24	24	60.00	400	4	6
DDG-30/5000	30	30	75.00	400	5	6
DDG-90/15000	90	90	225.00	400	15	6

* Non-standard customization is available based on technical requirements.

Manufacturing Expertise

Established with decades of experience in R&D and manufacturing of power electrical testing products. Our equipment is widely utilized in electric power, railways, petrochemical industries, and aerospace sectors.

Quality Control & Delivery

Frequently Asked Questions

Q1: What is the primary application of the DDG Series? A: It is primarily used for current load tests and temperature rise tests on circuit breakers, switchgear, CT/PT, and other high-current electrical equipment.

Q2: Can the system be customized for specific current requirements? A: Yes, we offer non-standard customization to meet specific output current, voltage, and multi-channel temperature monitoring needs.

Q3: How does the "Current Recovery Tracking" function work? A: As components heat up, impedance increases and current naturally drops. The software automatically tracks and adjusts the output to maintain the set current level throughout the test.

Q4: Is the temperature rise test fully automated? A: Yes. Once the temperature rise current and duration are set, the system performs the test autonomously, saves results, and generates curves without manual intervention.

Q5: What safety protections are included in the system? A: The system includes digital protection for overcurrent, overvoltage, and overheating, with synchronous recording of action times for tested components.

Q6: What is the typical lead time for an order? A: Standard delivery is usually within 10 working days. Custom configurations may vary based on the complexity of the technical requirements.