FST-S903 three phase relay protection tester
Meet all test requirements on site.The instrument has standard four phase voltage and three-phase current output. It can test not only various traditional relays and protection devices, but also various modern microcomputer protections, especially for transformer differential protection and standby automatic switching device. The test is more convenient and perfect.
| Single phase current output (RMS) | 0 — 30A / phase, accuracy: 0.2% ± 5mA |
| Three phase parallel output (RMS) | 0 – 90A / three phase in phase parallel output |
Description
Section 2 technical parameters
- AC current source (3 * 30A)
| Single phase current output (RMS) | 0 — 30A / phase, accuracy: 0.2% ± 5mA |
| Three phase parallel output (RMS) | 0 – 90A / three phase in phase parallel output |
| Allowable working value of phase current for a long time (effective value) | 9.9A |
| Maximum output power per phase | 300VA
|
| Maximum output power of three phase parallel current | 800VA |
| Maximum output allowable working time of triple parallel current | 5s |
| frequency range | 0 — 1000Hz, accuracy 0.001Hz |
| Harmonic number | 2–20second |
| phase | 0–360The accuracy is 0.1 degree |
- 2. DC current source
| DC current output | 0–± 10A / phase, accuracy: 0.5% ± 5mA |
- 3. AC voltage source
| Single phase voltage output (RMS) | 0 — 120V / phase, accuracy: 0.2% ± 5mv |
| Line voltage output (RMS) | 0–240V |
| Phase voltage / line voltage output power | 75VA/100VA |
| frequency range | 0 — 1000Hz, accuracy: 0.001Hz |
| Harmonic number | 2–20second |
| phase | 0–360Degree, accuracy: 0.1 degree |
- 4. DC voltage source
| Single phasevoltage output amplitude | 0–± 160V, accuracy: 0.5% ± 5mv |
| Output amplitude of line voltage | 0–±320V |
| Phase voltage / line voltage output power | 90VA/180VA |
- 5. switching value terminal
| Switch input terminal | 8yes |
| Air contact | 1 — 20 mA, 24 V, internal active output of the device |
| Potential reversal | Passive contact: low resistance short circuit signal
Active contact: 0-250V DC |
| Switch output terminal | 4 pairs, empty contacts, interruption capacity: DC: 0-30V/5A,
AC:0-250V/5A |
- 6. others
| time frame | 1ms — 9999s, measuring accuracy: 1ms |
| Volume and weight of portable series single machine | Volume 335 x 168 x 270mm3, about 12.5kg |
| Power Supply | AC220V±20%，50/60Hz，10A |
| Working current＜10A | working hours≤60minute |
| 20A＞Working current≥10A | working hours≤70S |
| 30A＞Working current≥20A | working hours≤15S |
| Working current：30A | working hours≤5S |
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