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Megger SDRM201 Resistance Measurement Accessory For Egil
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Megger SDRM201
The Megger SDRM201 is a specialized accessory designed to enhance the functionality of the EGIL (Electrical Grounding and Insulation Logger) and other compatible circuit breaker analyzers, such as the TM1700 and TM1800 series. This device plays a crucial role in conducting both static and dynamic resistance measurements, which are essential for assessing the performance and reliability of high-voltage circuit breakers.
Key Features
- Versatile Resistance Measurement: The SDRM201 enables users to perform both Static Resistance Measurement (SRM) and Dynamic Resistance Measurement (DRM). This dual capability allows for comprehensive testing of circuit breakers and other low-resistance devices, providing insights into their operational integrity.
- Voltage Drop Analysis: When used with the EGIL, the SDRM201 measures the current and voltage drop across circuit breaker contacts. This data is critical for calculating resistance as a function of time, which helps in identifying potential issues that could affect circuit performance.
- Portable Design: The SDRM201 is designed to be compact and lightweight, making it easy to handle and transport. This portability is particularly beneficial for field testing in various environments, including substations and industrial settings.
- Efficient Testing: The device supports multiple operations with short waiting intervals, allowing technicians to perform tests quickly and efficiently. This feature is especially advantageous during routine maintenance checks or emergency assessments.
- Seamless Integration: The SDRM201 includes an integrated cable system that connects seamlessly with the EGIL unit. This integration simplifies the setup process, ensuring that users can quickly connect and start testing without extensive configuration.
Applications
The Megger SDRM201 is widely used for:
- Circuit Breaker Testing: It is primarily utilized for testing high-voltage circuit breakers, ensuring they operate within specified resistance limits for safety and reliability.
- Preventive Maintenance: Electrical maintenance teams employ the SDRM201 as part of their preventive maintenance programs to monitor the condition of circuit breakers over time, helping to prevent unexpected failures.
- Field Testing: Its portable design makes it ideal for field testing scenarios where quick assessments are necessary to maintain operational continuity in electrical systems.
In summary, the Megger SDRM201 Resistance Measurement Accessory is an essential tool for professionals involved in testing and maintaining high-voltage circuit breakers. Its versatility in performing static and dynamic measurements, combined with its user-friendly design, makes it a valuable asset in ensuring the reliability and safety of electrical installations.
Megger SDRM201 Specifications
| Measurement ranges | DRM / MOTION mode | 0 - 32 mΩ |
| SRM mode | 0 - 2 mΩ | |
| DRM mode | 0 - 32 mΩ | |
| SRM inaccuracy | 2% ±2 μΩ | |
| Environment | Application Field | The instrument is intended for use in high-voltage substations and industrial environments |
| Installation Category | CAT I | |
| Pollution Degree | 2 | |
| Operating Temperature | -20°C to +50°C (-4°F to +122°F) | |
| Storage & Transport Temperature | -40°C to +70°C (-40°F to +158°F) | |
| Vibration | IEC 60068-2 - 6, 2 g for 5- 500 Hz | |
| Shock (non-operating) | IEC 60068-2-27, 30 g, half-sine, 11 ms | |
| Degree of Protection SDRM201/202 (Box) and SDRM Cable Interconnected | IP 43 | |
| Degree of Protection SDRM Cable | IP 41 | |
| Humidity | 5% - 95% RH, non-condensing | |
| CE-Marking | LVD | 2006/95/EC |
| EMC | 2004/108/EC | |
| General | Power Inlet | 24 V / 2.5 A |
| Power Inlet Voltage | 24 V DC (max) 21 V DC (min) | |
| Power Inlet Current | 2.5 A (max 50% intermittence) | |
| Dimensions | 160 x 240 x 90 mm, (6.3”x 9.4”x 3.5”) excl. binding posts | |
| Weight | 1.3 kg (2.9 lbs), 2.5 kg (5.5 lbs) incl. current cables | |
| Total Weight incl. Transport Case with Accessories | 9.4 kg (20.7 lbs) | |
| SDRM Cable EGIL | 0.2 m (0.7 ft), 0.6 kg (1.3 lbs) | |
| Extension Cable | 7.5 m (24.5 ft), 0.7 kg (1.5 lbs) | |
| CURRENT OUTPUT Terminals - and + | ||
| SDRM201 - Terminals | Open Circuit | 2.5 V DC (max) |
| Instantaneous Short Circuit Current (max) | 500 A DC | |
| Short Circuit Current (max) After 2 Seconds | 150 A ±10% | |
| Instantaneous Minimum Current with Cables | 200 A DC | |
| Minimum Current with Cables After 1 Second | 140 A DC | |
| Overvoltage Protection | 45 V between terminals and between terminals and ground | |
| Not to be connected to circuits generating peak power pulse above 1500 W (10/1000 μs) | ||
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Megger SDRM201 Resistance Measurement Accessory For Egil
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