Portable fault recording tester for real-time monitoring

SHFZ-20CPortable fault recording tester for real-time monitoringProduct Features

1. Using DSP+PC104 embedded operating system as the core, with strong versatility

2. Modular input method, suitable for measuring various special parameters

3. Storage capacity 200GB hard drive

4. Signal processing technology ensures the availability of collected data

5. The software functions developed through long-term and extensive on-site accumulation are suitable for the application requirements of different users

Portable fault recording tester for real-time monitoring of product functions

Portable fault recorderIt is a portable instrument that integrates electrical testing, fault recording, and comprehensive power monitoring functions. It adopts an all-in-one structure and is equipped with high-performance processing, acquisition, operation, and communication components, achieving * data processing capabilities. It can be used for steady-state measurement and transient record analysis in various links of the power system.

The oscilloscope is equipped with multiple analog channels, all of which use electrical isolation technology, with an isolation withstand voltage of up to DC3000V; The simulation channel types include AC voltage, AC current, DC voltage, DC current, speed signal, etc., covering the electrical signal types of various links in the power system. The types of switch input signals include active and passive. The switch output signal is a relay node.

The oscilloscope has a fully functional integrated software, including functions such as waveform recording, testing, monitoring, and long-term recording. The remote computer (upper computer) software provided can be connected to the oscilloscope through a local area network to achieve remote operation of the equipment.

The main functions of the oscilloscope include:

Real time monitoring: The oscilloscope is connected to 16 analog signals and 16 switch signals. Real time display of waveforms, harmonics, vector diagrams, and real-time calculation of analog effective values and derived quantities (frequency, active power, reactive power, power angle, zero sequence, negative sequence, etc.).

Generator electrical testing: Various generator characteristic testing items, including generator no-load test, short circuit test, frequency characteristic, leading phase test, load rejection test, rotor AC impedance, synchronous device verification, as well as various tests of excitation regulator, such as step test, demagnetization test, zero voltage rise test, etc.

Fault recording: Equipped with a complete fault recorder function, it monitors real-time signals according to predefined fault criteria and starts waveform recording when the criteria are met. It can automatically and accurately record the changes in various electrical quantities before and after a fault occurs in the power system.

Long term waveform recording: Continuously recording the waveform, effective value, and switch status of analog signals for a long time. The maximum recording time is 31 days, and the maximum selectable sampling frequency is 10kHz.

Main technical indicators

1. 16 analog channels

2. Switching quantity 16 channels (8 active, 8 passive)

3. Analog sampling frequency: 10K/s, 20K/s, 50K/s, 100K/s optional

4. Switching event resolution: 0.1ms

5. A/D conversion resolution: 16 bits

6. Effective value accuracy: 0.2 level.

7. Analog signal input range: AC voltage: 0-150V

AC current: 0-10A

DC voltage: ± 2000V

DC current: 0~100mV

DC current: 4-20mA

8. Switching input method: Passive contact and active signal (DC24V-220V)

9. Fault record capacity: 200GB hard drive

10. Derived quantities: active power, reactive power, frequency, positive sequence, negative sequence, zero sequence, vector sum (difference), etc.

11. Communication interface: a 10/100Mbps 802.3u network interface; Two USB ports.

12. Display screen: 15.6-inch LCD screen with a resolution of 1366 × 768.

13. Chassis size (width x depth x height): 407 * 307 * 150 (mm)

14. Power supply: AC85-260V 50Hz ± 0.5Hz; DC110-370V.

15. Insulation strength: General channel AC1500V

Portable waveform recorders can also be referred to as: waveform recorders, power recording analyzers, portable waveform recorders, portable fault recorders, waveform recorders, generator comprehensive characteristic testers, portable fault recorders, etc. They have independent channels and can be customized according to user needs.