Description
About this model
Megger HV DAC Series Test and Diagnostic System
The Megger HV DAC series represents a cutting-edge test and diagnostic system specifically engineered for high-voltage (HV) cables. This series is adept at conducting after-laying testing on newly installed HV cables, which forms a crucial part of quality control. Additionally, it is invaluable for condition assessments on repaired or service-aged HV cables, ensuring that they continue to meet safety and performance standards. For project managers and field technicians seeking reliable diagnostics, finding the best price on the Megger HV DAC series ensures an optimal return on investment for cable maintenance programs.
One of the standout features of the HV DAC series is its remarkable compactness relative to its testing capacity. This transportable unit can effectively test cables up to 32 kilometers in length, demonstrating significant technical prowess without the bulk typically associated with such capabilities. The compact nature of the device not only facilitates easy transportation but also simplifies setup within substations. Unlike resonance test sets that often require large trucks and roadblocks during setup, the HV DAC series eliminates these logistical challenges, offering a more streamlined and less intrusive testing process. When you buy the Megger HV DAC series, you are investing in a system designed to reduce downtime and operational complexity.
The portability of the HV DAC series also brings a high degree of operational flexibility. With its quick setup time, the system allows technicians to efficiently adapt to changing weather conditions—a critical advantage when working in outdoor environments. The system’s low weight further underscores its portability, eliminating the need for special road accommodations and making it suitable for air transport. This capability significantly reduces transport times, enhances the system’s overall efficiency, and ensures that testing and diagnostics can be carried out promptly and effectively, no matter the location.
Technical Features and Field Applications of the Megger HV DAC-200
The Megger HV DAC-200 is the flagship model within this series, designed to deliver precise voltage control and high sensitivity for partial discharge (PD) measurements. When evaluating the specifications of this unit, it becomes clear that the system is built for rigorous industrial environments. The price of the Megger HV DAC-200 reflects its advanced capability to handle complex cable diagnostics with ease. Below, we explore the specific technical features that define this model’s performance in the field.
The output voltage capabilities of the HV DAC-200 are central to its functionality. It provides a variable AC voltage that is essential for testing various cable lengths and insulation types. The precision and resolution of the output ensure that technicians can perform tests according to strict international standards without compromise. This level of control is critical for detecting subtle insulation defects that could lead to future failures.
- DAC Output: 18 … 141 kVRMS / 25 … 200 kV peak.
- Precision: ± 1 % accuracy for reliable measurement data.
- Resolution: 0.1 kV, allowing for fine-tuned testing parameters.
- Frequency Range: 20 Hz … 300 Hz, adaptable to different cable capacitances.
- Capacity Range: 0.035 μF … 8 μF at 200 kV peak, covering a wide variety of cable sizes.
- Charging Current: 20 mA, ensuring efficient charging cycles.
PD Sensitivity and Localization Capabilities
Partial discharge detection is a critical aspect of high-voltage cable testing, and the Megger HV DAC-200 excels in this area. The system’s ability to detect and localize PD events helps operators identify insulation degradation before it leads to catastrophic failure. When you buy the Megger HV DAC-200, you gain access to sophisticated filtering and localization technology that rivals larger, less portable test sets. The following specifications highlight the system's sensitivity and measurement accuracy.
- PD Sensitivity Range: 2 pc … 100 nC (acc. to IEC60270), ensuring the detection of even the smallest discharge events.
- System Noise Level: < 2 pc, providing a clean signal-to-noise ratio for accurate analysis.
- PD Pulse Repetition Rate: Coupling capacitor of 100 kHz with 20 nF capacity.
- Localization Measuring Range: 0 … 16,