DIGITAL VOLTAGE REGULATOR DIGITAL+VOLTAGE+REGULATOR+ … · StacoDVR-5 60kVA to 6000kVA StacoDVR)5+...

StacoDVR-5 60kVA to 6000kVA StacoDVR-‐5

DIGITAL VOLTAGE REGULATOR DATASHEET DIGITAL VOLTAGE REGULATOR

April 2016

StacoDVR-‐5: 3-‐ph. Voltage Regulator Why choose a voltage regulator The availability of steady voltage supply is critical for a number of situations involving voltage sensitive equipment. Whether because of the unreliability of the energy distribution or the presence of electronically controlled machinery and systems, high quality voltage supply regardless of the incoming fluctuation is very often the key for ensuring efficiency and reliability to the final user. Disrupted production, loss of data security failure, machinery faults, inaccurate information and domestic inconvenience are only a few examples of possible problems caused by unstable supply. Of course, all this means increased costs. The voltage regulator has proved to be an efficient solution in order to prevent from potentially dangerous situation due to input voltage instability. A voltage regulator is a device able to respond to changes in the voltage level on the input line caused by sags (due to undersized distribution lines, connection of large loads to the network, ground faults, etc.) and surges (generated by disconnection of large loads, increased voltage at the generating plant, atmospheric events, etc.). The duration of such phenomena depends on their cause and is not easily predictable. Sags are generally more common especially where the distribution is not efficient. The result of the regulator operation is a steady output voltage for the load.

Applications Voltage regulators are suitable for a wide range of applications.

Characteristics The regulators are designed and built in compliance with the European Directives concerning CE marking 2006/95/EEC (Low Voltage Directive) and 2004/EEC (Electromagnetic Compatibility Directive) and can be used in A and B environments according to EN61439-‐1/-‐2. StacoDVR-‐5 regulators use columnar voltage regulators which and cover the range from 60kVA to 6000kVA, allowing for the choice of several input voltage variation percentages within a broad range (from +30% up to -‐45%). The regulation is performed independently on each phase and the presence of the neutral wire is required. The StacoDVR-‐5 regulator is used when the main is unbalanced and it is suitable for supplying three-‐phase loads, two-‐phase loads and single-‐phase loads. Output voltage reduced and regulated to the desired value with ±0.5% accuracy High power availability High reliability and ruggedness use with asymmetrical input supply and single-‐phase loads or unbalanced three-‐phase loads;

StacoDVR



April 2016

functionality based on the ‘rms voltage’. The control supplies the load to a correctly regulated voltage even with non-‐sinusoidal waves, frequently found in habitual applications. These waveforms are caused by the presence of (for example) converters, transformers with saturated core, non-‐linear loads, pulses, connecting or disconnecting transients, etc.

regulation performed independently on each single phase (referring to the neutral, which must be available and connected); fully functioning with load charge variable from 0 to 100% and 100% phase unbalance. up to 30% harmonic content admitted on the load current. insensitivity to the load power factor no harmonic distortions generated on the output voltage absence of batteries and consequent easy storage and handling remote monitoring The STACO DVR-‐5 regulator is provided with an electronic voltage regulator protection system which act ivates in case of overload on the voltage regulator. In such condit ion the load supply is not interrupted, but the regulator output voltage is automatical ly set to the lower between the mains voltage and the pre-‐set output voltage. The service continuity is guaranteed, a lthough the voltage is not regulated. When the overload condit ion ceases to exist , the regulator switches automatical ly back to regular functioning.

Main components and working principle three-‐phase ‘buck/boost’ transformer motorised three-‐phase autotransformer with continuously

variable transformer ratio microprocessor-‐based control system The control system refers the output voltage value to the set nominal one. If the voltage is outside the accuracy range (±0.5%), the control drives the motorized autotransformer gear-‐motor. By doing so, its rollers change position thus varying the voltage drawn and supplied to the buck/boost transformer primary winding. Being the secondary voltage of the buck/boost transformer in phase or in opposition to the supply, the voltage drawn from the motorized autotransformer is added or subtracted to the mains voltage, thus compensating its variations.

DSP microprocessor-based control board Totally digitalised control via DIGITAL S IGNAL PROCESSOR (DSP) microprocessors control CPU measure CPU output voltage supervisor CPU (bodyguard)

External control panel Input and output digital multimeter Keypad to surf through the menus available on the local display Display indicating alarms, setting parameters and connecting data. USB ports to update the base board software and download the stored data Phase LEDs Alarm LEDs

Protections Voltage reset to the minimum value in case of black-‐out Motor stop in case of motor overload Motor stop in case of motor short-‐circuit Overload on the voltage regulator Roof fans activation managed by the control system Automatic c ircuit breaker to protect the

voltage regulator v ia digital control e lectronic protection

Protection of voltmeter lines and motor supplying circuits (fuses) Base board protection (fuses) Fan relays protection (fuses) Input SPD Surge Arrestor Class I protects against

l ightning Output SPD Surge Arrestor Class I I protects against

transients & spikes

INPUT OUTPUT

PVI: input digital multimetreTM: buck/boost transformerVT: motorized autotransformerM: DC gearmotorN1: base boardN2: signalling LED board

PVO: output digital multimetreCOM: remote communication board

M M M

COM

GPRSEthernet

N1 N2

USB

TM

TM

TM

VTVTVT

PVI PVO

U1

V1

W1

N

U2

V2

W3

N



April 2016

Signals Line voltage out of range ('Maximum voltage' and

'Minimum voltage' LEDs) Excessive phase current ('Maximum current' LED) Regulation reaching the limit switches ('Top limit switch'

and 'Bottom limit switch' LEDs)

Voltage regulator rollers overheating ('Roller overheating' LED) Enclosure overheating ('Overheating' LED) Line phase failure on the line (Local display) Alteration of the three-‐phase cycle (Local display)

The intervention of any of the above mentioned protections (except for the fuses intervention) is signalled by luminous and acoustic alarms.

Remote communication system Thanks to its capability to connect with ETHERNET and GPRS protocols, the control system can interface with the Internet, thus allowing for remote monitoring even from headquarters. Communication with the unit can be established also via the ModBus TCP/IP protocol (commonly used for electronic industrial devices) through an Ethernet connection (Rj45 cable). . The control system is also provided with a USB port for downloading data on a memory key and uploading setting parameters should operating amendments in the system be required. When connected, information concerning the status of the regulator can be transferred to a dedicated server. Data can be analysed from a remote location, thus allowing for actively monitoring the functioning mode and, if necessary, altering the setting of some parameters wherever the unit might be installed. Downloading and uploading software, data and functioning parameters can be carried out either locally or remotely.

Stabimon Once the remote communication is established, the dedicated software provided with the regulator enables the remote monitoring of the installation. A dashboard on a PC shows I/O parameters, alarm situation and phase status of the LEDs duplicating the regulator's external control panel.

In case of multiple installation, another window shows the general situation indicating whether a regulator is connected for remote communication (green LED) or not (transparent LED) and if an alarm condition is active (red LED).

regulator

Ethernet

GPRS modem

SERVICE

data analysis

online

assistance

local

assistance



April 2016

TECHNICAL DATA PART NUMBER Unit Specif ic

RATED POWER Unit Specif ic [kVA]

INPUT VARIATION RANGE +/-‐15, +/-‐20, +/-‐25, +/-‐30, +15/-‐35, +15/-‐45 Unit Specif ic

[%]

RATED VOLTAGE 208-‐220-‐230-‐240-‐380-‐400-‐415-‐480 Unit Specif ic

[V]

MAX INPUT CURRENT Unit Specif ic [A]

OUTPUT CURRENT Unit Specif ic [A]

OUTPUT ACCURACY +/-‐0.5% or +/-‐ 1% Unit Specif ic

[%]

FREQUENCY 50/60Hz +/-‐ 5% or 60Hz +/-‐5% Unit Specif ic

[Hz]

REGULATION SPEED 10 to 48 Unit Specif ic

[msec/V]

EFFICIENCY > 97 [%]

ADMITTED LOAD VARIATION 0 -‐ 100 [%]

ADMITTED PHASE ASIMMETRY 0 -‐ 100 [%]

MAINS WAVEFORM DISTORTION INCREMENT None introduced [%]

ADMITTED OVERLOAD 200% 2min -‐

COOLING Natural a ir venti lat ion (aided with fans over 45°C) -‐

AMBIENT TEMPERATURE -‐25/+45 [°C]

STORAGE TEMPERATURE -‐25/+60 [°C]

RELATIVE HUMIDITY 95 [%]

DIMENSIONS [W x D x H] Unit Specif ic [mm]

WEIGHT Unit Specif ic [kg]

ENCLOSURER TYPE PROTECTION Standard IP 21 / Nema 1, Optional Unit Specif ic -‐

COLOUR RAL 7035 -‐

INSTALLATION INDOOR -‐

INSTRUMENTATION Input and Output digital mult imeter with RS485 port LCD display

REGULATOR OVERLOAD PROTEСTION

Automatic c ircuit breaker to protect regulator power path via digital control e lectronic protection system Fuses to protect auxi l iary c ircuits

COMMUNICATION SYSTEM PARAMETERS SETTING

local ly v ia PC and USB remotely v ia Ethernet, GPRS modem or MODBUS

OVERVOLTAGE PROTECTION

SPD Surge Arrestor Class I ( input) SPD Surge Arrestor Class I I (output) Soft start through super capacitors in case of mains fai lure

N.B. -‐ Other configurations are available on specific request. The technical data in the above tables can be altered by the Company without prior notice



April 2016

OPTIONAL FEATURES Part Number suffix B1 Bypass switch-‐-‐ Internal-‐-‐ Input Disconnect and Output changeover interlocked switch

Unit Specif ic [A]

B2 Bypass switch-‐-‐ Internal-‐-‐ Input Circuit Breaker and Output changeover interlocked switch

Unit Specif ic [A]

B3 MAINTENANCE BY-‐PASS FULL PROTECTION KIT Internal—(Input-‐Bypass-‐Output) Circuit Breakers interlocked. (A+B+C+phase fai lure/sequence error), Over / Under Voltage Protection. Output Contactor 320 A and under, Output Circuit Breaker >320A

Unit Specif ic [A]

E EMI / RFI Output Fi lter ing Unit Specif ic L (A+B+C+phase fai lure/sequence error), Over / Under Voltage Protection. Output Contactor 320 A and under, Output Circuit Breaker >320A

Unit Specif ic [A]

P PRIMARY INPUT CIRCUIT BREAKER with/without Thermal Magnetic Release Unit Specif ic [A] S SECONDARY OUTPUT CIRCUIT BREAKER with/without Thermal Magnetic Release Unit Specif ic [A] T1 INPUT SPD class I SURGE ARRESTORS Unit Specif ic T2 OUTPUT SPD class I I SURGE ARRESTORS Unit Specif ic

Z TROPICALIZATION Unit Specif ic

Manual By-‐Pass switch for maintenance and repair works 2000/1600A rated: a) Input Automatic Circuit Breaker ABB 4P – 2000A rated (short circuit protection, complete with Phase Rotation/Phase Failure Relay) b) Interlocked By-‐Pass Automatic Circuit Breaker ABB 4P 2000A rated c) Output interlocked Magneto Thermal Circuit Breaker ABB 4P – 1600A rated (Overload protection and Over/Under voltage protection with adjustable time delay) for phase failure and phase reversal protection excludable by key selection

STACO ENERGY PRODUCTS COMPANY 1229 Byers Road, Miamisburg Ohio 45342 - USA www.stacoenergy.com

DIGITAL VOLTAGE REGULATOR DIGITAL+VOLTAGE+REGULATOR+ … · StacoDVR-5 60kVA to 6000kVA StacoDVR)5+...

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