Product Overview
The SDDL-5000BS Primary Current Injection Test Set is a high-power electrical testing instrument designed to generate large primary currents for testing and commissioning of electrical protection systems. It is widely used for busbar protection testing, current transformer (CT) ratio testing, and protection relay verification in power utilities, railways, petrochemical plants, and industrial facilities. The system features high output power, stable current generation, compact structure, and high measurement accuracy, making it suitable for both laboratory and on-site electrical testing.
Key Features
- Continuous high-current output up to 5000A
- True RMS current output with sinusoidal waveform
- High measurement accuracy (up to 0.5 class)
- Automatic identification of normally open and normally closed contacts
- Synchronous action time measurement
- Multiple units can be connected in series to improve efficiency
- Compact size with strong load capacity
- Digital LCD display for clear reading and observation
- Over-current and over-voltage protection
Applications
- Primary busbar protection testing
- Current transformer (CT) ratio and polarity testing
- Protection relay commissioning
- Power utility substations
- Railway and petrochemical industries
- Metallurgical and mining enterprises
- Electrical testing laboratories
Technical Specifications
| Parameter | Specification |
| Model | SDDL-5000BS |
| Input Voltage | AC 380V, 50Hz |
| Rated Power | 25 kVA |
| Output Current Range | AC 0 – 5000A (stepless adjustable) |
| Output Current Accuracy | ±0.2 |
| Output Current Mode | True RMS, continuously adjustable |
| Output Waveform | Standard sinusoidal wave |
| Output Voltage | ≥ 5V |
| Current Measurement Accuracy | 0.5 class |
| Current Stability | ≤ 0.5% |
| Current Waveform Distortion | THD ≤ 1% |
| Display | 128 × 64 dot-matrix LCD |
| Display Parameters | Primary current, secondary current, time |
| Time Measurement Range | 0.01 s – 99999.999 s |
| Time Measurement Accuracy | 0.001 s |
| Protection Functions | Over-current and over-voltage protection |
| Polarity Measurement | Automatic CT polarity measurement |
Standard Accessories
- Primary current injection test unit
- High-current output cables
- Built-in digital display system
- Protective aluminum carrying case
- User manual
Benefits
- Accurate and reliable primary current testing
- Improves efficiency of protection system commissioning
- Reduces testing time with automated functions
- Portable and rugged design for field use
Compliance
Designed for electrical testing applications in accordance with industry standards for power system commissioning and protection testing.
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