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Multi-Function SAVS Recorder for Power System Monitoring - China Suppliers & Factory for Reliable Sag and Short Interruption Recording
products description
The SAVS is a multi-function recorder that includes the features of many separate instruments for monitoring a power system. These include system stability, and power quality. SAVS can be used both on HV and LV bus. The voltages and currents on three phase lines are recorded via standard instrumentation transformers to 16-bit accuracy. The state of protection relays and switchgear can also be monitored via auxiliary switch contacts.
products specification
| Main functions | descriptions | features |
|---|---|---|
| Sag start time | Real time monitoring and recording | 1s recording before sag |
| Sag end time | Real time monitoring and recording | 30s recording after sag |
| Sag duration time | Real time monitoring and recording | accurately identifying 1ms sag |
| Sag drop depth | Real time monitoring and recording | Monitor, display residual voltage |
| Sag drop rate | Monitor, recording and record the rate of voltage drop | Analyze, calculate sag drop rate |
| Sag current change | Real time monitoring and recording | Monitor and display surge current |
| Sag source identify | Identifying the sag is from the power grid or a load short circuit | Intelligent judgment of sag source |
| Sag phase identify | Discrimination is the sag of 1-phase, 2-phases, or 3-phase | phase separation monitoring |
| Statistics of sag No. | Classify and count the number of sag | Probability and statistical characteristics of sag |
| Statistics of duration | Count the duration of sag | |
| Statistics of depth | Calculate the depth of sag | |
| Solution Recommendation | Recommend a cost-effective solution for sag | Assist customers in developing solutions |
| data export | exported to a USB flash drive or communicated to the backend | Multiple protocols and interfaces |
| Routine PQ monitoring | V、I、power factor、THD、unbalance, etc. | No need other PQ monitors |
products advantage
| No. | items | Main technical features |
|---|---|---|
| 1 | Technical level (Six major upgrades) |
High sampling frequency: 12kHz → 20kHz (sampling time: 83ms → 50ms) More duration time recording: -0.2~+3s → -1~+30s (panoramic recording) More duration time when power loss: 10s → 60s Accurate time synchronization function: Beidou or GPS Stronger analysis capabilities: real time analysis of voltage drop rate, type of sag, and reasons for sag Solution Recommendation: Based on the analysis results of panoramic recording, recommend the most reasonable solution |
| 2 | Process level (Four major upgrades) |
Change the touch screen to 10 inches Improve wiring methods: wiring terminals, wiring methods, etc High strength anti vibration structural design Artwork style full art design |
Frequently Asked Questions
What is the SAVS and where can it be used?
The SAVS is a multi-function recorder for monitoring power system stability and power quality. It is designed to be used on both high-voltage (HV) and low-voltage (LV) buses.
What are the major technical upgrades featured in the SAVS?
The SAVS features six major technical upgrades: an increased sampling frequency of 20kHz, panoramic recording duration from -1s to +30s, extended power loss duration of 60s, precise Beidou or GPS time synchronization, real-time analysis of voltage drop rate and reasons for sag, and automatic solution recommendations.
Can the SAVS identify the source and phase of a voltage sag?
Yes, the SAVS features intelligent judgment to determine if the sag originates from the power grid or a load short circuit. It also discriminates whether the sag affects 1-phase, 2-phases, or 3-phases.
What process upgrades are built into the SAVS hardware?
The SAVS incorporates four major process level upgrades: a 10-inch touch screen, improved wiring terminals and methods, a high-strength anti-vibration structural design, and an artwork-style full art design.
How does the SAVS handle data export and communication?
Monitored data can be easily exported to a USB flash drive or communicated directly to the backend system using multiple protocols and interfaces.