EMi3

Servomotor Power Conditioner 5kVA – 1300kVA

The EMi3 power conditioner series is a stabilizer, which due to its simplicity, reliability and robustness, has achieved to persist along the time, but with a re-designing, which has given technical improvements in electrical, electronic and mechanical.

The equipment can be used to stabilize the power supply of any kind of machine, which doesn’t require regulation with high response time, but it requires a constant and accurate stabilization, in particular, those ones tending to be complicated: high startup inrush currents, high reactive power, high powers,…etc.

The equipment makes a sensitive and efficient stabilization of the output voltage through its incorporated Booster transformer, Variac and microprocessor. To keep the output stable with a minimum tolerance, the servo system uses control of the DC motor by means of MOSFET transistors.

Main Features

  • Power range, single and three-phase, up to 1300 kVA.
  • Fast and efficient toroidal/columns autotransformers for the entire power range.
  • Output accuracy better than 1% (adjustable).
  • In three-phase units, independent regulation per phase, unaffected by imbalances.
  • Input regulation range ±15% standard.
  • High efficiency, up to 97.5%.
  • High speed regulation, up to 70 V/s.
  • Full LCD display for stabiliser control and monitoring.
  • Guaranteed output stability through a MosFET servo control.
  • Unaffected by line voltage harmonics; stabilisation based on true RMS.
  • Stable operation in the event of load and/or voltage variations.
  • Wide operating temperature range (-10°C to +55°C).
  • Dry contact interface (2 standard and up to 11 optional).
  • No harmonics injection.
  • Mechanically-optimised design, easier maintenance.
  • Transient overloads of up to 1000% of the rated admissible.
  • Highly robust and reliable (high MTBF).
  • Quiet operation.
  • Overvoltage surge supresion protection.
  • More than 80% recyclable materials.

Options

  • Output current, power and overload measurement.
  • Maximum and minimum output voltage protection.
  • Manual and automatic bypass.
  • Overload contactor.
  • Communications and relay module.
  • Other regulation ranges.
  • Galvanic isolation transformer.

SPECIFICATION TABLE

TECHNICAL SPECIFICATIONS
MODEL EMi3
INPUT Voltage Single-phase 120 / 220 / 230 / 240 V
Three-phase 3×208 / 3×220 / 3×380 / 3×400 / 3×415 V (3Ph + N) (6)
Range ±15 (1)
Frequency 47.5 ÷ 63 Hz
OUTPUT Voltage Single-phase 120 / 220 / 230 / 240 V
Three-phase 3×208 / 3×220 / 3×380 / 3×400 / 3×415 V (3Ph + N) (6)
Accuracy ± 3% (adjustable between 1% ÷ 5%)
Output voltage setting ± 10%
Frequency 48 ÷ 63 Hz
Regulation speed Up to 70 V/s
Performance Between 96.5% and 97.5%
Injection of voltage harmonic distortion <0.2%
Voltage disconnection value (2) Adjustable
Admissible overload Up to 200% for 20 s
Possible load variation 0 ÷ 100%
Power factor influence Independent
INDICATORS Front panel LCD display (2×16 characters) + 4 status LEDs
COMMUNICATION RS-232 (3) Standard
2 Dry contacts Standard
Free slot (3) One
GENERALS Operating temperature  -10° C ÷ +55° C (1)
Storage temperature  -20° C ÷ +85° C
Cooling Natural or forced depending on power rate
Level of acoustic noise at 1 metre <45 dB(A) (4)
Relative humidity Up to 95%, non-condensing
Maximum operating altitude 2,400 m.a.s.l.
Mean time between failures (MTBF) 60,000 hours
Mean time to repair (MTTR) 30 minutes
STANDARDS Safety IEC-62103
Electromagnetic compatibility (EMC) EN-61000-6-4; EN-61000-6-2
Quality and environmental management ISO 9001 and ISO 14001
(1) Other ranges available on request (2) With optional voltage maximum-minimum (3) Mutually exclusive ports
(4) Forced from 20 kVA for single phase and 55 kVA for three-phase (5) <65 dB(A) for models with forced ventilation (6) Ask for other settings

SERIES TABLE

RANGE
 MODEL POWER
(kVA / kW)
DIMENSION
(D x W x H mm)
WEIGHT
(Kg)
 EMi3 M 5-2 5  590 x 340 x 585 45
 EMi3 M 7.5-2 7.5  590 x 340 x 585 59
 EMi3 M 10-2 10  590 x 340 x 585 60
 EMi3 M 15-2 15  905 x 460 x 705 115
 EMi3 M 20-2 20  905 x 460 x 705 119
 EMI3 M 25-2 25  905 x 460 x 705 196
 EMi3 M 30-2 30  905 x 460 x 705 209
Nomenclature, dimensions and weights for models: Input 230 V 50 Hz / Output 230 V 50 Hz and input range +/-15%.
 MODEL POWER
(kVA / kW)
DIMENSION
(D x W x H mm)
WEIGHT
(Kg)
 EMi3 T 15-4 15  905 x 460 x 705 126
 EMi3 T 20-4 20  905 x 460 x 705 169
 EMi3 T 35-4 35  905 x 460 x 705 224
 EMi3 T 55-4 55  650 x 615 x 2120 374
 EMi3 T 70-4 70  650 x 615 x 2120 495
 EMi3 T 90-4 90  850 x 615 x 2120 533
 EMi3 T 110-4 110  850 x 615 x 2120 577
 EMi3 T 140-4F 140  850 x 1615 x 2120 857
 EMi3 T 175-4F 175  850 x 1615 x 2120 1159
 EMi3 T 220-4F 220  850 x 1615 x 2120 1227
 EMi3 T 275-4F 275  850 x 1615 x 2120 1298
 EMi3 T 330-4F 330  850 x 1615 x 2120 1450
Nomenclature, dimensions and weights for models:
– From 15 kVA to 110 kVA: Input 3×400 V 50 Hz / Output 3×400 V 50 Hz, input range +/-15% and common regulation. (Independent regulation per phase available on request).
– From 140 kVA to 330 kVA: Input 3×400 V 50 Hz / Output 3×400 V 50 Hz, input range +/-15% and independent regulation per phase.
(1) Others powers upon request.

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