Description

RE3 – Electronic Power Conditioner

From 300VA to 250kVA

RE3 Voltage Stabilizers series are products with independent phase regulation, so it means that every single phase is treated through an Electronic Control Card individually, and a the same time it is managed by a microcontroller of the last generation, which controls the stabilizer operating. RE3 has a static Bypass in each phase, which allows shifting all the load to mains in case of any incidence and/or failure, protecting itself and avoiding a break in the power supply to the loads.

The equipment has optical indicators at the front based on lighting emitting diodes, which inform about its status. In addition, most of the RE3 models has a control panel with LCD, which allows checking the input/output voltage and frequency at any time. As an option, the control panel has the following measurements: output current, total active and apparent power and total load percentage per phase. All these measurements involve the availability of current transducers in each output

phase.

Although the standard input voltage range is ±15 %, under request it is possible to manufacture equipment with wider input voltage ranges, up to ±30 % (input window regulation). The voltage stabilizer provides protection against unexpected changes, irregularities, increasing and decreasing of mains voltage by means of an accurate voltage stabilization.

Input fuses or circuit breaker switches provide protection to the load and the stabilizer against sustained overloads. The cooling depends on the model and IP protection degree, so it can be natural or forced in order to keep stable the internal temperature. The equipment can include Maximum and Minimum voltage protections, supplying the needed control signal to break the output by means of a contactor, which can be fitted at the factory as an option, when the voltage exceeds the allowed limits or there is a mains failure. In order to keep protection against sudden voltage fluctuations, the supplied signal is delayed for few seconds.

It is also possible to include an option, which breaks the output of the stabilizer in case of overload. In this case, the output current transducers must be included, to provide this overload measurement. The stabilizer can include the Manual Bypass option, which is not ready to be manoeuvred with load. It allows supplying the loads during the maintenance tasks or stabilizer faults.

Regarding the communications, to highlight that the equipment with the control panel has a slot, which allows inserting the SICRES Ethernet card. Under request, the communication of the stabilizer can be increased by one programmable dry contact connected to a terminal strip and even to install a communication module with two serial channels and 5 additional dry contacts, provided that the control panel must be included.

Main Features

• Power range, single and three-phase, up to 250 kVA
• Ultra-fast regulation: reply speed under 100 ms
• Digital control and parameters setting independent per phase.
• Entirely static structure, without moving elements, greater reliability
• Static bypass, loads always supplied
• In three-phase units, independent regulation per phase, immune to imbalances
• Output precision better than ±2%
• Efficiency > 97%
• Isolation transformer or ultra-isolation on unit output (optional)
• LCD Display, as standard, from 6 kVA single-phase or 15 kVA three-phase
• Detection of voltage input or output (max/min) out of margins, as standard (For models with LCD display)
• Communication slot (For models with LCD display)
• Overtemperature detection
• Do not introduce harmonics, or alter the power factor of the installation
• Unaffected by line voltage harmonics; stabilisation based on true RMS
• Stable operation in the event of load and/or voltage variations
• Highly robust and reliable (high MTBF)
• Overvoltage surge suppression protection
• More than 80% recyclable materials

Options

• Relay interface.
• Manual maintenance bypass.(1)
• Protection of high-low voltage with manual or automatic reset (output voltage disconnection when out of range)
• Isolation transformer (T)
• Ultra-isolation transformer (NS)
• Current transformers for measures of current, power (kVA / kW) and power factor
• Overload protection. (1)
• Telemanagement card. (1)
• Extended communications module. (1)
• Extended ambient operating temperature from -20ºC.
• Input & output circuit breaker

(1) Models with display