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THREE PHASE AUTOMATIC
VOLTAGE STABILIZERS
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| POWER | INPUT | OUTPUT | FREQUENCY | SPEED | ACCURACY |
| FROM 40KVA TO 500KVA | 400V ± 15% | 400V | 50/60 Hz | 20 mSEC/V* | ± 1% |
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Our range of electromechanical three phase "RTG" voltage stabilisers has been recently extended including five new models from 150kVA up to 500kVA supporting customers which required higher ratings with high levels of efficiency and accuracy. The regulation is independent for each single phase using toroidal voltage regulators of high power and fast regulation speed. "RTG" has digital voltmeters with input and output voltage readings on each phase and A-meters on each phase. Protection is assured by an automatic circuit breaker on input up to 100kVA, while fuse protection, automatic circuit breaker or main circuit breaker are available on request for higher ratings. Input and output connections are possible on each side and from the bottom side through an internal board. |
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The electronic
control which gives the regulation assures an output accuracy less than
1.5% with the option of regulating the voltage within the 5% of the
nominal output voltage. |
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| Power | from 40kVA to 500kVA |
| Input voltage | 400V three phase a.c. + N |
| Input voltage acceptable variation | ± 15% (from 340V to 460V) different range available on request |
| Output voltage | 400V three phase a.c. + N |
| Output voltage accuracy | ± 1% independent regulation on each phase |
| Fine voltage regulation | ± 5% separately on each phase up to 300kVA |
| Frequency | 50/60Hz |
| Regulation speed | 20/1000 sec. / Volt |
| Load tolerable variation | from 0 to 100% |
| Load acceptable unbalance | 0 - 100% |
| Acceptable power factor | 0 - 1 |
| Full load efficiency | > 98% |
| Harmonic distortion | < 0,5% |
| Ambient temperature | 0° : 45°C |
| Altidude | up to 1000m. on sea level without derating |
| Standards | IEC 60686 |
| Cooling | Forced air |
| Protections | 4-poles magnetic
circuit breaker (up to 100kVA) RFI filter as a protection of control circuit Surge protection on electronic control |
| Standard accessories | Thermal-magnetic
circuit breaker, digital voltage analyser with four displays with simultaneous reading of values on the three phases, input/output voltage selector, output current, power factor, frequency, internal temperature. Fine regulation of output stabilised voltage, IN/OUT connectors sized to the rating |
| power | part no. | dimensions mm. | DWG | weight | ||
| kVA | A | B | C | kg. | ||
| 40 | RTG040K | 600 | 400 | 1500 | A | 250 |
| 50 | RTG050K | 600 | 400 | 1500 | A | 280 |
| 60 | RTG060K | 600 | 400 | 1900 | A | 315 |
| 80 | RTG080K | 600 | 600 | 1900 | A | 350 |
| 100 | RTG100K | 600 | 600 | 1900 | A | 380 |
| 150 | RTG150K | 1200 | 600 | 1900 | B | 500 |
| 200 | RTG200K | 1200 | 800 | 1900 | B | 650 |
| 300 | RTG300K | 1200 | 800 | 1900 | B | 830 |
| 400 | RTG400K | 2400 | 800 | 1900 | C | 1000 |
| 500 | RTG500K | 2400 | 800 | 2100 | C | 1600 |
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legenda R-S-T-N: input connections TS: buck-boost transformer S: servomotor AT: variable autotransformer C: control circuit M: voltage analyzer R1-S1-T1-N: output connections |
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Data shown on this page are for reference only and can be changed withouth further notice |