MS-702C Three phase relay protection tester
Standard 4-phase voltage and 3-phase current output: Features 4-phase voltage and 3-phase current output, allowing for convenient combination outputs for various types of protection tests. Each phase voltage can output 120V, and the three currents can be combined to output 120A. The 4th phase voltage Ux is a multi-functional voltage item, which can be set to four types of 3U0, synchronization voltage detection, or any arbitrary voltage value.
1. Standard 4-phase voltage and 3-phase current output: Features 4-phase voltage and 3-phase current output, allowing for convenient combination outputs for various types of protection tests. Each phase voltage can output 120V, and the three currents can be combined to output 120A. The 4th phase voltage Ux is a multi-functional voltage item, which can be set to four types of 3U0, synchronization voltage detection, or any arbitrary voltage value.
2. Convenient standalone operation: The unit is operated via a convenient and flexible rotary mouse and a large LCD screen, displaying all information. It can complete most on-site testing and verification work, verify various relays and microcomputer protection devices, and simulate various complex transient, permanent, and switching faults for comprehensive testing. It is ready to use upon power-on, offering convenient and fast operation.
3. Operating modes: Computer connection operation: Through a full set of Chinese operating software on the Windows platform, it can perform various large-scale, complex, and highly automated calibration tasks. It can conveniently test and scan various protection settings, store test data in real time, display vector diagrams, draw fault waveforms, and print reports online.
4. Powerful software functions: It can complete various highly automated and complex calibration tasks, such as three-phase differential protection tests, plant power quick switching, backup automatic transfer tests, line protection synchronization reclosing, etc. It can conveniently test and scan various protection settings, perform fault playback, store test data in real time, display vector diagrams, and print reports online.
5. Abundant switch contacts: The relay protection tester has 8 input contacts and 4 pairs of dry contact outputs. The input contacts are compatible with both dry contacts and 0-250V potential contacts and can be intelligently and automatically identified. Input and output contacts can be expanded according to user needs.
6. Large LCD screen: This unit uses a 320×240 dot matrix large-screen high-resolution graphic LCD display. All operation processes are set on the display screen. The operation interface and test results are displayed in Chinese, providing intuitive and clear display. 7. Self-protection: It adopts a reasonably designed heat dissipation structure and features reliable and comprehensive multiple protection measures, power soft start, and certain fault self-diagnosis and interlocking functions.
8. Independent dedicated DC power output: The device is equipped with one dedicated adjustable DC power output of 110V and 220V.
9. High cost-effectiveness: It is a cross-disciplinary collaborative design product, integrating advanced technological achievements from multiple disciplines. It combines the performance of large-scale testing instruments with the price of small-scale testing instruments, offering a very high performance-price ratio.
AC Current Output
1. AC Current Output: Output Accuracy: 0.2 class
2. Phase Current Output (RMS): 0-40A
3. Three-Phase Parallel Current Output (RMS): 0-120A
4. Long-term allowable operating value of phase current (RMS): 10A
5. Maximum output power of phase current: 450VA
6. Maximum output power when three-phase parallel current is at maximum output: 900VA
7. Allowable operating time at maximum three-phase parallel current output: 10s
8. Frequency range (fundamental wave): 0-1000Hz (online) 0-300Hz (standalone), Harmonic order: 0-20 times (online) 0-6 times (standalone)
DC Current Output
1. Output Accuracy: 0.5 class
2. Current Output: 0-±10A per phase, 0-±30A three-phase parallel
3. Maximum output load voltage: 20V
AC Voltage Output
1. Output Accuracy: 0.2 class
2. Phase Voltage Output (RMS): 0-120V
3. Line Voltage Output (RMS): 0-240V
4. Phase Voltage/Line Voltage Output Power: 80VA/100VA
5. Frequency range (fundamental wave): 0-1000Hz (online) 0-300Hz (standalone)
6. Harmonic order: 0-20 times (online) 0-6 times (standalone)
DC Voltage Output
1. Output Accuracy: 0.5 class
2. Phase Voltage Output Amplitude: 0-±160V
3. Line Voltage Output Amplitude: 0-±320V
4. Phase Voltage/Line Voltage Output Power: 70VA/140VA
Switching Quantity and Time Measurement
1. Switching Quantity Input: 8 channels, dry contact: 1-20mA, 24V
2. Potential Contact Input: “0”: 0- +6V; “1”: +11V- +250V
3. Switching Quantity Output: 4 pairs, DC: 220V 0.2A; AC: 220V 0.5A
4. Time Measurement: Measurement range 0.1ms - 9999s, Measurement accuracy 0.1ms