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INTRODUCTION
| MEWOI-176kVA-22kV AC Resonant Test Set is mainly designed for AC withstand voltage test of primary electrical equipment in substation, such as transformer, GIS system, SF6 switch, cable, generator, bushing and other capacitive equipment. |
TECHNICAL SPECIFICATION
| Main technical parameters | ||
| Rated capacitance | 176kVA | |
| Input power supply | 220V, frequency: 50Hz | |
| Rated voltage | 22kV | |
| Rated current | 8A | |
| Working frequency | 30 - 300Hz | |
| Output waveform | Sine wave | |
| Waveform distortion | the waveform distortion of output voltage ≤ 1% | |
| Duty cycle | allows continuous 1min under rated load, 1min under 1.1 times over-voltage | |
| The temperature rise | after continuous operation for 1min under the rated load, the temperature rise is less than or equal to 65K | |
| Protection function | with over-current, over-voltage and flash-over protection for tested objects. (see the section of the variable frequency power supply) | |
| Test accuracy | RMS 1.5 class | |
| Operating Condition | ||
| Temperature | -10℃ ~ 50℃ | |
| Relative humidity | ≤ 90%RH | |
| Altitude | ≤ 1000m | |
| Configuration and parameters of the system | ||
| Item | Quantity | Parameter |
MEWOI-F-10kW/220V Inverter power supply | 1pc | (1) Rated output capacitance: 10kW (2) Power supply: 0 - 220V ±10%V single-phase (3) Output voltage: 0 - 250V, single-phase (4) Rated input current: 45.4A (5) Rated output current: 45A (6) Voltage resolution: 0.01kV (7) Voltage measurement accuracy: 1.5% (8) Frequency adjustment range: 30 - 300Hz (9) Frequency adjustment resolution: ≤ 0.01Hz (10) Frequency stability: 0.1% (11) Running time: continuous 60 min under rated capacitance (12) After continuous operation for 60 min under the rated capacitance, the highest temperature of component is no more than 65K (13) Noise level: ≤ 50dB (14) Weight: about 20kg |
MEWOI-44kVA/22kV High voltage reactor | 4pcs | (1) Rated capacitance: 44kVA (6) Structure: dry type (7) Weight: about 45kg |
| MEWOI-10kVA/1.5kV Exciting transformer | 1pc | (1) Rated capacitance: 10kVA (2) Input voltage: 0 ~ 250V, single-phase (3) Output voltage: 1.5kV(5) Structure: dry type (7) Weight: about 158kg |
| MEWOI-30kV/3000pF Capacitive divider | 1pc | (1) Rated voltage: 30kV; (2) High-voltage capacitance: 3000pF (3) Dielectric loss: tgσ ≤ 0.5% (4) Voltage ratio: 1000: 1 (5) Measurement accuracy: RMS 1.5% (6) Weight: about 6kg |
| Other Options |
| MEWOI-3000KVA-1000KV,44KVA-22KV,88KVA-22KV,108KVA-108KV,135KVA-54KV,648KVA-54KV,2800KVA-130KV,1600KVA-800KV,1320KVA-440KV-220KV,405KVA-270KV-45KV,270KVA-270KV |