SXZB 6 Phase Relay Protection Tester
The SXZB Series Protective Relay Test Equipment is designed to provide controlled electrical signals for testing protective relays and relay protection equipment. It can be used during relay commissioning, maintenance and functional verification in substations, power plants and electrical testing facilities.
Based on a high-speed digital signal processor and true 16-bit DAC technology, the system combines signal amplification, industrial computer control, display and measurement functions. Its AC/DC current and voltage outputs, harmonic signal capability, switching interfaces and time measurement function provide a practical platform for comprehensive protective relay testing.
| Category | Specification |
|---|---|
| AC Current Output | 0–30 / 40 A per phase |
| AC Current Output Power | 400 VA |
| AC Current Frequency | 20–500 Hz |
| AC Current Harmonics | 1–9th |
| DC Current Output | 0–±10 A per phase |
| AC Voltage Output | 0–125 V |
| AC Voltage Output Power | 80 VA |
| DC Voltage Output Power | 100 VA |
| AC Voltage Frequency | 20–500 Hz |
| AC Voltage Harmonics | 1–9th |
| DC Voltage Output Amplitude | 0–±140 V |
| Dry Contact Input | 1–20 mA, 24 V |
| Potential Input | “0": 0–6 V; “1": +11–250 V |
| Switch Output | DC: 220 V / 0.2 A; AC: 220 V / 0.5 A |
| Time Measurement Range | 0.1 ms–9999 s |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
1. What protection equipment is this system designed for?
It is designed for protective relays and relay protection devices used in electrical power systems.
2. Does it support harmonic testing?
Yes. The specified AC current and voltage outputs support 1st–9th harmonics within the 20–500 Hz frequency range.
3. Does the tester have switching signal interfaces?
Yes. It provides switch input and switch output interfaces for relay testing applications.
4. What is the time measurement range?
The specified time measurement range is 0.1 ms–9999 s.