power factor correction and harmonic filtering - circutor · pdf filer .1 r1-3 the use of...

Power factor correction and harmonic filtering

R.1

Automatic power factor regulatorsCircutor-NRW Büro Köln Mail: [email protected] Homepage : www.berk-iv.de

Kontakt: Berk Industrievertretung 51103 Köln Erna Schaeffler Stra.1a Tel: 00492205910003 Fax: 00492205910005

R.1Automatic power factor regulators

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R.1 - Automatic power factor regulators

Selection table · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-4

computer Plus-TIntelligent regulator · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-5

computer MAXAutomatic power factor regulators · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-7

computer dAutomatic power factor regulators · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-9

computer 9G-3TRMulti-tariff automatic regulator · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-11

computer plus-TFFast power factor regulator (static capacitor banks) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-13

computer MAX-fFast power factor regulator (static capacitor banks) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-15

computer dfFast power factor regulator (static capacitor banks) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-17

DIR1-step power factor relay. DIN rail · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · R1-19

Circutor-NRW Büro Köln Mail: [email protected] Homepage : www.berk-iv.de Kontakt: Berk Industrievertretung 51103 Köln Erna Schaeffler Stra.1a Tel: 00492205910003 Fax: 00492205910005

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The use of automatic power factor regu-lators is required for power factor com-pensation purposes in installations with variable loads.

CIRCUTOR's “computer” regulators can be used to monitor existing load curves accurately, whereby the cos φ is guaranteed to reach the programmed values.

The whole range of computer regulators is based on CIRCUTOR's FCP system (Fast Computerized Program), offering a set of unique performance features:

} Minimisation of the number of switch-ing operations, increasing the working life of the components in the capacitor bank.

} Increase in the unit's response time, thus achieving greater energy savings. Anti-oscillation system, preventing unwanted capacitor connections and disconnections. Optimum regulation, thanks to the accurate information about the status of network parameters and the anti-oscillation system, guarantee-ing that the installation load curve can be monitored accurately and the objec-tive cos φ can be attained.

Measurement and compensation

CIRCUTOR's vast range of regulators has been designed to cover the com-pensation requirements in each differ-ent type of installation.

Automatic power factor regulators

R.1Installation examples:

Power Factor L1: 80 kvarPower Factor L2: 90 kvarPower Factor L3: 110 kvarMean value: L1+L2+L3 / 3 = 93.33 kvar

% unbalance L1= (L1-mean value /mean value) x100= 14.28 %% unbalance L2= (L2-mean value /mean value) x100= 3.33 %% unbalance L3= (L3-mean value /mean value) x100= 17.86 %

The threshold will be used to choose whether our capacitor bank will have a three or single-phase measurement, within a 12% unbalance in one of the phases.

The previous example shows that L1 and L3 are above 12% of the unbal-ance, so the use of computer Plus is required.

In order to compensate installations with quick load variations, CIRCUTOR's fast series computers must be used, since they are capable of compensat-ing the reactive consumption in millisec-onds (ms).

In unbalanced systems, if you wish to install a conventional regulator that will measure a single phase, you run the risk of insufficient or excessive compen-sations. CIRCUTOR has designed the computer plus series to compensate unbalanced installations. Computer plus is available in the plus-T version (contactor switching) and Plus-TF ver-sion (thyristor switching), which are ca-pable of compensating the total reactive consumption in real time and phase-by-phase.

Computer Plus is an innovative prod-uct that offers a wide range of new characteristics, three-phase measure-ments, phase-by-phase compensation, built-in power analyzer, test function, protection against harmonics, leakage, control, communications, etc. This cata-logue includes additional information about our new product.

The following example shows how the unbalance between phases can be calcu-lated in a percentage and how to deter-mine the need to perform a compensation process with a three-phase measurement using the Plus system.


.1 Automatic power factor regulatorsR

R1-4

Product selection table

Equipment Types of loads Types of installation Response time Page

com

pute

r pl

us

slowunbalanced

(Three-phase measurement regulator)

4 s 5

com

pute

r M

AX

slowbalanced

(Single-phase measurement regulator)

4 s 7

com

pute

r d

(8d,

14d

)

slowbalanced


4 s 9

com

pute

r 9G

3TR

slowmulti-tariff systems

(Special rate)Adjustment of 3 cos φ

4 s 11

com

pute

r pl

us-T

F

fastunbalanced

(Three-phase measurement regulator)

20 ms 13

com

pute

r M

AX

f

fastbalanced


20 ms 15

com

pute

r df

fastbalanced


100 ms 17

DIR slow control of a single step 1 s 19


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R1-5

Intelligent regulatorcomputer Plus-T

FeaturesType of measurement Three-phase

Power analyzer

Measurement: cos φ, PF, U, I, In, THD(I), THD(U), kV ·A, kW, kvarC, kvarL, kw ·h, kvar ·h, Hz, temperature. Max and min records, with date and hour of the electrical parameters.

Alarms Temperature, voltage, current, THD(I), THD(U), kvar, cos φ, capacity loss.

Test function Loss of capacity, resonance, cos φ

Anti-resonance system Built-in

Plug and play function (self-programmable) Built-in

Step-by-step earth leakage protection CDI Version

RS-485 Communications (modbus protocol) CDI Version

Measurement of current in capacitors CDI Version

Measurement of temperature Built-in

Power supply circuitVoltage 110 ... 480 Vac

Consumption 6 VA

Frequency 45 ... 65 Hz

Measurement circuitNominal voltage 110 ... 300 V ph-n, 190 ... 520 V ph-ph


Nominal current 1 to 5 A max.

Overload (permanent) 15 %

Voltage class 0,5

Current class 0,5

Power class 0,5

Relays Maximum switching voltage 250 Vac

Maximum switching current 3 A

Ambient conditionsOperating temperature 0 ... 55 ºC

Build featuresType of box V0 self-extinguishing plastic

Fitted unit, protection degree (frontal) IP 51

Fitted unit, protection degree (rear) IP 21

Dimensions 144 x 144 x 90 mm

Safety CAT III

Intelligent state-of-the-art regulators, capable of measuring the Three-phase networks and compensating the total reactive consumption accurately.

The Plus-T power factor regulators have been designed with CIRCUTOR's measure-ment system technology, effectively creating a compensation + measurement unit. As a power analyzer, it displays any electrical parameter of the network in real time and records it in its internal memory, with maxi-mum and minimum values, date and hour. The user can benefit from the following ad-vantages as a result of the many new fea-tures:

} The measurement of the three phases guarantees the real compensation of the in-stallation. } Protection against harmonics, with an

anti-resonance system. } Easy installation, fully self-programmable,

operation start-up by pressing just one key } New regulation program that enables the

use of any type of sequence } Greater continuity of the service, control

and display of leakages, with step-by-step earth leakage protection } Internal temperature sensor, for the pro-

tection against excessive temperatures, with alarm and/or disconnection system } Test function to check the whole unit by

pressing just one key } The communications system can be used

by the user to display the distance of unit pa-rameters and the network for the preventive supervision and maintenance tasks.

Application

Computer Plus-T regulators are ideal to com-pensate modern installations that often have unbalanced loads. Its three-phase measure-ment system and power analyzer function, safety, monitoring and control system make it the ideal candidate to compensate instal-lations where the precision and continuity of the service are fundamental factors.

Features

Description



R1-6

References‏

Dimensions

Connections

Intelligent regulatorcomputer Plus-T

No. of steps Three-phase measurement Alarms Communications, Earth

Leakage, IcapacitorsType Code

8 Yes Yes No computer Plus-T8 R12011

14 Yes Yes No computer Plus-T14 R12211

8 Yes Yes Yes computer Plus-T8 CDI R12111

14 Yes Yes Yes computer Plus-T14 CDI R12212

144

14

4

84

93

Current measurement in the capacitor bank

S1 S2 S1 S2 S1 S2

C1 C2 C3 C4 C5 C6 C1 4

Relés

COM

Power supplyVL1 VL2 VL3 N S 1 S 2 S 1 S 2 S 1 S 2

Alarm

L1L2L3N

C7 C8 C9 C1 0 C 11 C1 2 C 13

Secondary Current transformers inputs

Communications Earth leakage


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Automatic power factor regulatorcomputer MAX

computer MAX 6 computer MAX 12

Voltage circuit

Power supply 230, 400, 480 Vac (accor. to type)

Tolerance -10... +15 %

Consumption 4 V ·A 64 V ·A


Measurement circuit

measuring voltage 230, 400, 480 Vac (accor. to type)

Nominal current (In ) Current transformer In / 5 A

Output relay 6 12

Maximum voltage 250 Vac

Nominal current 4 A

Electrical endurance 5 * 104 / 5 * 106 opetarions

Alarm relay

Relay Last relay configurable as alarm output

AlarmsCompensation failure, Over-compensation, Over-

voltage, Over-current, C.T. not connected or open, Line current below measurable value

Build features

Operating temperature -10 ... +50 ºC

Assembly Panel

Dimensions 144 x 144 mm

Connection Connection strip

Degree of protection IP 52 (front) / IP 31 (rear)

Performance

Measure electric parameters Voltage, current, THD(I), and maximum values of U and I

phase selection” function Selection of the power line phase where the C.T. is placed

Integrated control system FCP / 4 quadrants

Connection programs 1.1.1.1 / 1.2.2.2 / 1.2.4.4 / 1.2.4.8 / 1.1.2.2

Test Function Cos j Correction Test & Harmonic Resonance Test

Tr Connection delay 4 ... 999 s

Ts Safety delay 5 · Tr

Standards

IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-11

The state-of-the-art regulators of the MAX Series have been designed to offer simple and efficient regulation features.

The whole range of computer regulators is based on CIRCUTOR's FCP system (Fast Computerized Program), offering a set of unique performance features. Its main fea-tures are as follows:

} Shows by display: cos j, voltage, current, THD(I) and, besides, records in memory maximum values for voltage and current } provides the “phase selection” function,

that allows the user choosing the power line phase where the measuring current transfor-mer (C.T.) has been placed in } allows viewing in display the variation of cos j,

line current and THD(I), when manually con-necting or disconnecting capacitor steps. } Indication by display or through relay

output of following alarm conditions: Com-pensation failure, Over-compensation, Over-voltage, Over-current, C.T. not connected or open, Line current below measurable value

Application

The computer MAX regulator is ideal to compensate unbalanced installations where the ease or programming, robustness and accuracy are vital requirements.

Its programming system is simple and intui-tive, making it very easy for the user to install and maintain it.

FeaturesDescription



R1-8

References‏

Dimensions

Connections

Automatic power factor regulatorcomputer MAX

Power supply voltage No. of steps Size Type Code

400 V c.a. 6 144 x 144 computer Max 6 R10831








Power supply Power supply

computer 6m computer 12m


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R1-9

Automatic power factor regulatorcomputer d

The computer d series offers the user a very simple and safe installation, thanks to its top performance features and its ease of instal-lation.

Thanks to its FCP technology, the computer d series attains the objective cos φ with the minimum number of switching operations, in-creasing the working life of capacitors.

Other important features:

} It enables the rotation of phases, in order to configure the regulator independently from the phase where the CT is installed } Ammeter function } Measurement of THD(I) } Alarms: Harmonic distortion, lack of com-

pensation, overcompensation, loss of current or voltage signal } Optional RS-485 communications } Manual connection and disconnection of

steps } Voltage-free alarm relay.

Application

The top performance features of the compu-ter d system and its robustness make it the optimum solution to compensate balanced installations, where attaining the objective cos φ is a vital requirement.

FeaturesDescription

computer 8d computer 14d

Voltage circuit

Power supply 230 / 400 Vac

Tolerance ±15 %

Consumption with all relays connected 5 V ·A 10 V ·A

Frequency 45...65 Hz

Current circuit

Consumption 0.5 V ·A

Nominal current (In ) 5 A

Output relay


Nominal current 4 A

Electrical working life (No. switching operations at full load) 100 000

Alarm relay


Nominal current 4 A


Build features


Assembly Panel


Degree of protection IP 54 (front) IP 31 (rear)

Performance

Integrated control system FCP

Adjusting the cos φ 0.80 L ... 0,95 C

Indicating the cos φ Display (3 digits)


No. output relays 3 / 6 / 8 10 / 12 / 14



Standards

EN 61010, IEC 1010-1, EN 50081-2, EN 50082-2



R1-10

References‏

Dimensions

Connections

Automatic power factor regulatorcomputer d

Power supply voltage No. of steps Alarm Size Type Code

230 / 400 Vac 6 - 144 x 144 computer 8d-6-144 R10122

230 / 400 Vac 8 - 144 x 144 computer 8d-8-144 R10123

230 / 400 Vac 8 yes 144 x 144 computer 8d-8-144a R10125




computer 14d accessories

Type Code

Compatible with POowerStudio (Includes EASYCOMM Software)EASYCOMM Software available on the web site: www.circutor.com RS-485 communications module R18011

Dimensions in mm Computer 8d-144 Computer 14da 144 144b 144 144c 76 76d 9,4 9,4

Alarm relay relays 4 ... 8

relays 1 ... 3


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R1-11

Multi-tariff automatic regulatorcomputer 9G-3TR

The multi-tariff series regulators have been designed to control the reactive consumption in electrical systems with 3 objectives cosφ. To do so, the regulator measures and regu-lates the cos φ independently in each hourly slot.This regulator is applicable to the energy gen-eration stations under the special regime, in accordance with Royal Decree RD661/2007, such as, for example, wind farms, photovolta-ic power plants and hydraulic power plants.

Main Features

} Adjustment of the 3 objectives cos φ. It is programmed by default in compliance with RD 661/2007.

Application

The configuration of 3 different objectives cos φ means that the computer 9G-3TR can be used to compensate installations under a special regime, which require different cos φ, in accordance with the hourly slot

Where is a 9G-3TR unit needed?In installations that need to work with more than 1 cos φ or in the case of generation or cogeneration situations under the "special regime", such as:

Features

Description

} The change of adjustment of cos φ is car-ried out with two voltage-free contacts of the billing meter. } We recommend the use of CIRWATT } Regulation in 4 quadrants } Selection of the type of connection (loca-

tion of the current transformer) } Measurement of the power consumed

and generated } Visualization of the alarm on the display 9

steps available

Voltage circuit

Power supply 400 Vac

Tolerance ±15 %

Consumption with all relays connected 4 V ·A


Current circuit



Output relay


Nominal current 4 A


Build features


Assembly Panel



Performance





No. output relays 9



Standards

EN 61010, IEC 1010-1, EN 50081-2, EN 50082-2

T1 0.95 Inductive

T2 1

T3 0.95 Capacitive

} Wind farms. } Photovoltaic power plants (solar farms). } Hydraulic power plants } Installations that use cogeneration as an

electricity production system } Generation produced by biomass or any

other type of fuel } etc.

What can we achieve with a 9G-3TR unit?The multi-tariff computer 9G-3TR can be used to attain three different values of cos φ, depending on the need of each hourly slot, as a REACTIVE ENERGY complement, so that we can achieve the BONUSES or PENAL-TIES described on the next page (in accord-ance with RD661/2007).



R1-12

References‏

Dimensions

Connections

Power supply voltage

No. of steps Alarm Size Type Code

400 Vac 10 - 144 x 144 computer 9G-3TR R11300

690 Vac 10 - 144 x 144 computer 9G-3TR R11302

Multi-tariff automatic regulatorcomputer 9G-3TR

C 1 2 3 4 5 6 7 8 9 10 11 12 13 14

ALARMS

C1 C2 C3 C4 C5 C6 C7 C8 C9 C106A

L1L2L3N

16 17 18 19 20 21L1 L2 L3 N k l

reactive energy complement

Type of PFActive energy / power

factor Bonus, in percentage

Power factor Peak Flat Valley

Inductive

< 0,95 -4 -4 8

< 0.96 and ≥ 0.95 -3 0 6

< 0.97 and ≥ 0.96 -2 0 4

< 0.98 and ≥ 0.97 -1 0 2

< 1 and ≥ 0.98 0 2 0

1 0 4 0

Capacitive

< 1 and ≥ 0.98 0 2 0

< 0.98 and ≥ 0.97 2 0 -1

< 0.97 and ≥ 0.96 4 0 -2

< 0.96 and ≥ 0.95 6 0 -3

< 0,95 8 -4 -4

Bonuses or Penalties


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R1-13

Fast power factor regulator(Static capacitor banks)

computer plus-TF

State-of-the-art intelligent regulators that are capable of measuring the three-phase networks and compensating the reactive consumption of each phase in real time. In addition, they correct the total zero reactive energy and balance the active power in each phase.The Plus-TF power factor regulators have been designed with CIRCUTOR's measure-ment system technology, effectively creating a compensation + measurement unit. As a power quality analyzer, it displays any electri-cal parameter of the network in real time and records it in its internal memory, with maxi-mum and minimum values, date and hour.The user can benefit from the following ad-vantages as a result of the many new fea-tures: } The measurement of the three phases

guarantees the real compensation of the in-stallation. } Phase-by-phase compensation and in

real time } Protection against harmonics, with anti-

resonance system } Easy to install, fully self-programmable,

starts operating by pressing just one key } New regulation program that enables the

use of any type of sequence } Greater continuity of the service, control

and display of leakages, with step-by-step earth leakage protection } Internal temperature sensor, for the pro-

tection against excessive temperatures, with alarm and/or disconnection system } Test function to check the whole unit by

Application

Computer Plus-TF regulators are ideal to compensate modern installations that of-ten have unbalanced loads. Its three-phase measurement system, phase-by-phase compensation and power analyzer functions make it the ideal solution to compensate in-stallations with a variation of quick loads, be-tween 20 ms and 4 seconds, and/or large un-balances between phases, such as welding units, cranes, lifts and lifting units, smelters, hospitals, automotive industry or any other sector or unit that requires an efficient com-pensation of the power factor.

Some of the advantages of this compensa-tion system are as follows: } Elimination of transients produced by the

capacitor's connection. } The lack of transients in the connec-

tion allows us to eliminate gaps, flicker and any other alteration generated by the connection's transient } Limited switching operations, guarantee-

ing a longer working life for the unit } Immediate response to the compensation

request

Description pressing just one key. } The communications system can be used

by the user to display the distance of unit pa-rameters and the network for the preventive supervision and maintenance tasks.

} Lower wear of capacitors and switching elements, due to the elimination of transients and the total absence of mobile mechanical parts } Eliminates or reduces the effects of vol-

tage drops caused by reactive consumption peaks.Its phase-by-phase compensation functions make computer Plus-TF the most efficient regulator in the market.

Bonuses or Penalties



R1-14

References‏

Dimensions


computer plus-TF

No. of steps Three-phase measurement Alarms Communications Earth Leakage,

IcapacitorsType Code

16 Yes Yes No No computer Plus TF R12511

16 Yes Yes Yes Yes computer Plus TF CDI R12611

Features

Features

Type of measurement Three-phase

Type of compensation Phase-by-phase

Minimum response time 2 cycles (40 ms)

Power analyzer Measurement: cos φ, PF, U, I, In, THD(I), THD(U), kV ·A, kW, kvarC, kvarL, kW ·h, kvar ·h, Hz, temperature.max. and min. records, with date and hour of the electrical parameters.

Alarms Temperature, voltage, current, THD(I), THD(U), kvar, cos φ, loss of capacity.

Test function Loss of capacity, resonance, cos φ.

Anti-resonance system Built-in

Plug and play function (self-programmable) Built-in

Step-by-step earth leakage protection CDI Version

RS-485 Communications (modbus protocol) Built-in

Measurement of current in capacitors CDI Version

Measurement of temperature Built-in

Power supply circuit

Voltage 110 - 480 Vac

Consumption 6 V ·A


Measurement circuit

Nominal voltage 110 - 300 V ph-n, 190 - 520 V ph-ph


Nominal current 1 to 5 A max.

Overload (permanent) 15 %

Voltage class 0,5

Current class 0,5

Power class 0,5

Ambient conditions

Operating temperature 0...55 ºC

Build features

Type of box V0 self-extinguishing plastic

Fitted unit, protection degree (frontal) IP 51

Fitted unit, protection degree (rear) IP 21

Dimensions 144 x 144 x 90 mm

Safety CAT III

Connections

S1 S2 S1 S2 S1 S2

C1 C2 C3 C4 C5 C6 C1 4

Relés

COM

Power supplyVL1 VL2 VL3 N S 1 S 2 S 1 S 2 S 1 S 2

Alarm

L1L2L3N

C7 C8 C9 C1 0 C 11 C1 2 C 13

Secondary Current transformers inputs

Communications Earth leakage

144

14

4

84

93

Current measurement in the capacitor bank


.1R

R1-15


computer MAX-f

The computer MAX-f series of regulators is within the fast regulator range, with a response time of 20 ms, adapted to real time compensation requirements. Main Features:

} Shows by display: cos j, voltage, current, THD(I) and, besides, records in memory maximum values for voltage and current } provides the “phase selection” function,

that allows the user choosing the power line phase where the measuring current transfor-mer (C.T.) has been placed in } allows viewing in display the variation of cos j,

line current and THD(I), when manually con-necting or disconnecting capacitor steps. } Indication by display or through relay

output of following alarm conditions: Com-pensation failure, Over-compensation, Over-voltage, Over-current, C.T. not connected or open, Line current below measurable value

Application

The computer MAX-f system has been designed to compensate installations that have a special load typology and require real time compensation, such as welding units, cranes, lifts and lifting equipment, smelters, hospitals, automotive industry or any other sector/unit that requires a real time compensation. Some of the advantages of this compensation system are as follows:

} Elimination of transients produced by the capacitor's connection. } The lack of transients in the connection

allows us to eliminate gaps, flicker and any other alteration generated by the connec-tion's transient } Limited switching operations, guarantee-


request } Lower wear of capacitors and switching

elements, due to the elimination of transients and the total absence of mobile mechanical parts } Eliminates or reduces the effects of volt-

age drops caused by reactive consumption peaks.

Description

Voltage circuit computer MAX 6 computer MAX 12

Power supply 230, 400, 480 Vac (accor. to type)

Tolerance -10... +15 %

Consumption 4 V ·A 64 V ·A


Measurement circuit

measuring voltage 230, 400, 480 Vac (accor. to type)

Nominal current (In ) Current transformer In / 5 A

Output relay 6 12


Nominal current 4 A

Electrical endurance 5 * 104 / 5 * 106 opetarions

Alarm relay

Relay Last relay configurable as alarm output

Alarms Compensation failure, over-compensation, over-voltage, over-current, C.T. not connected or open and line current below measurable value

Build features


Assembly Panel

Dimensions 144 x 144 mm



Performance

Measure electric parameters Voltage, current, THD(I), and maximum values of U and I

phase selection” function Selection of the power line phase where the C.T. is placed

Integrated control system FCP / 4 quadrants


Test Function Cos j Correction Test & Harmonic Resonance Test

Tr Connection delay 20 ms ... 2 s

Ts Safety delay 20 ms ... 2 s

Standards

IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-11

Features



R1-16

References‏

Dimensions

Connections


Computer MAX-f


400 V c.a. 6 -- 144 x 144 computer MAX 6f R10851

400 V c.a. 12 -- 144 x 144 computer MAX 12f R10862


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R1-17


computer df

The regulators of the computer df series are within the fast regulator range, with an adjustable response time, starting on 100 ms, recommended for installations that require the instantaneous monitoring of the reactive power as a result of the rapid variation of loads. Other important features:

} Adjustable response time (> 100 ms). } It enables the rotation of phases, in order

to configure the regulator independently from the phase where the CT is installed. } Ammeter function } Measurement of THD(I). } Alarms: Harmonic distortion, lack of com-

pensation, overcompensation, loss of current or voltage signal } Optional RS-485 communications } Manual connection and disconnection of

steps } Voltage-free alarm relay

Application

The computer df system has been designed to compensate installations that have a special load typology and require real time compensation, such as welding units, cranes, lifts and lifting equipment, smelters, hospitals, automotive industry or any other sector/unit that requires a real time compensation. Some of the advantages of this compensation system are as follows:

} Elimination of transients produced by the capacitor's connection. } The lack of transients in the connection

allows us to eliminate gaps, flicker and any other alteration generated by the connec-tion's transient } Limited switching operations, guarantee-


request } Lower wear of capacitors and switching

elements, due to the elimination of transients and the total absence of mobile mechanical parts } Eliminates or reduces the effects of volt-

age drops caused by reactive consumption peaks.

Features

Description

computer 8df computer 14df

Voltage circuit

Power supply 230 / 400 Vac

Tolerance ±15 %

Consumption with all relays connected 5 V ·A 10 V ·A


Measurement circuit



Outputs

No. of outputs 8 14

Maximum voltage 200 Vdc / 200 Vpeak ac

Maximum current 100 mA

Alarm relay


Nominal current 10 A


Build features


Assembly Panel


Degree of protection IP 52 (front) IP 31 (rear)

Performance





No. output relays 8 14

Tr Connection delay 0.1 ... 9.99 s

Ts Safety delay 0.1 ... 9.99 s

Phase selection Yes

Standards

EN 61010, IEC 1010-1, EN 50081-2, EN 50082-2 Circutor-NRW Büro Köln Mail: [email protected] Homepage : www.berk-iv.de

Kontakt: Berk Industrievertretung 51103 Köln Erna Schaeffler Stra.1a Tel: 00492205910003 Fax: 00492205910005


R1-18

References‏

Dimensions

Connections


computer df


230 / 400 Vac 8 yes 96 x 96 computer 8df-8-96a R10311



Dimensions in mm

computer 8df-96a 8df-144a 14df

a 96 144 144b 96 144 144c 78,5 76 76d 5,3 9,4 9,4

computer 14dfcomputer 8df


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R1-19

1-step power factor relay. DIN railDIR

The DIR power factor relay is capable of act-ing on a circuit in accordance with the reac-tive inductive or capacitive current transmit-ted through it.

The DIR relay measures reactive current in A of the secondary of a .../5 current transformer. The front of the relay has a control panel that is used to adjust the reactive current where the relay will act. It has a LED that indicates the status of the relay.

Application

The DIR relay is easy to install and program, making it the best solution in the following ap-plications: } Individual compensation of small, medium

or large power loads. } Partial compensation in installations with

automatic equipment available. } Partial or total regulator in low-power in-

stallations.Instantaneous and total discon-nection of capacitor banks when there is a high capacitive current in the network.Control of reactive currents - capacitive and inductive - triggering an alarm signal when a high cur-rent is detected.

FeaturesDescription

Voltage circuit

Power supply 400 Vac

Tolerance ±10 %

Consumption with all relays connected 5 V ·A

Frequency 50 Hz

Measurement circuit



Outputs

No. of outputs 1

Maximum voltage 200 V

Maximum current 100 mA

Build features


Assembly DIN rail

Connection Terminals

Degree of protection IP 21



R1-20

References‏

Dimensions

Connections

1-step power factor relay. DIN railDIR

Power supply voltage

No. of steps Alarm Size Type Code

230 Vac 1 - 35 x 85 DIR R11210

L1

L2

L3

N

S1 S2 A1 A2

DIR0,15

2

1

0, 5

1, 5

16 15 18

P1 P2

S1 S2


power factor correction and harmonic filtering - circutor · pdf filer .1 r1-3 the use of...

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