Description

EMi3-Servomotor Power Conditioner 5kVA – 1300 kVA

Constant stabilisation and savings in overvoltages

Issues such as the constant variation of loads connected to the mains, interference generated by the loads themselves, possible failures in distribution lines, voltage drops due to the length of the lines and problems caused by lightning make it impossible to have an electricity supply with a stable voltage. EMi3 servomotor voltage stabilisers are the ideal solution to protect sensitive equipment from constant voltage fluctuations in the power supply.

Moreover, in the event of drops in the total consumption of a power line, voltage tends to rise, causing overconsumption in the equipment that remains connected. By using a stabiliser, overconsumption can be eliminated, thereby producing significant cost savings and ensuring that connected loads function within the voltage range for which they were designed.

The operating principle is based on regulation, by means of a control circuit, of the variable autotransformer that supplies the voltage for the booster transformer in series, either in-phase or in phase opposition, to achieve the rated value of the output voltage.

EMi3 stabilizer model has been designed to operate in fluctuated mains and to safeguard the critical loads, in particular, those ones with a complicated nature: high inrush start-up currents, high reactive character, high powers, etc. EMi3 can withstand long overloads and it has high output accuracy (up to ±1%), they are manufactured in single and three-phase configuration with independent phase regulation or average regulation in the three phases depending on the model.

Main Features

• Power range, single and three-phase, up to 1300kVA
• Fast and efficient toroidal autotransformers for the entire power range
• Output accuracy better than 1% (adjustable from ±0,5 % up to ± 5 %)
• In three-phase units, independent regulation per phase, unaffected by imbalances.
• Input regulation range ±15% standard (other regulation range on request)
• 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)
• 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 suppression protection

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
• Output circuit breaker
• Extended ambient operating temperature from -20ºC