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APCQ CAPACITOR BANKS

STATUS

Approved

SECURITY LEVEL

Public

DOCUMENT ID

9AKK107680A4136

REV.

E

LANG.

en

PAGE

10/47

© 2022 Hitachi Energy. All rights reserved.

4.3. APCQ capacitor banks internal layout

Number

APCQ-L Description

1

Fan (air outlet)

2

Auxiliary transformer

3

Auxiliary connections (current transducer)

4

Power Factor Controller (RVC by default or RVT as an option)

5

UA contactors

6

Busbar point of connection (3-Phase)

7

QCap capacitors

8

Internal protection Plexiglas

9

Air inlet

10

Circuit breaker (optional)

11

Thermal cutoff switch

12

Cable knock-out

13

Temporary carton fixations to be removed during commissioning

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Содержание APCQ

Страница 1: ...APCQ Capacitor Banks Installation operation and maintenance instructions ...

Страница 2: ...ical connections overview 17 5 4 3 Earth connection 18 5 4 4 Power cables selection 19 5 4 5 APCQ L capacitor bank electrical connections 19 5 4 6 APCQ M and APCQ R electrical connections Bottom entry 20 5 4 7 Auxiliary power supply 21 5 4 8 Current transformer selection 21 5 4 9 Current transformer connection 22 5 4 10 Multi ratio CT and summation transformer 23 5 4 11 Connection of several banks...

Страница 3: ... en PAGE 3 47 2022 Hitachi Energy All rights reserved 6 14 APCQ for 600 and 900 kvar master slaves 34 7 Easy commissioning 35 8 Troubleshooting 38 9 Maintenance 39 10 Spare parts 41 11 Dimensions and weight 42 11 1 IP23 standard design 42 11 2 IP54 standard design 43 12 Technical specifications 45 ...

Страница 4: ...tor banks should be carried out by qualified elec tricians Do not attempt to work on a powered APCQ capacitor bank After switching off the power supply to the APCQ capacitor bank always wait at least 5 minutes before working on the unit i e time for the power capacitors to be discharged Always verify by measurement that capacitors are dis charged Note AC capacitor may be charged at higher voltage ...

Страница 5: ... representative Please also check the presence of following documentation Instruction manual Wiring diagram RVC or RVT Quick Start manual 3 1 Lifting and transportation guidelines Please note that APCQ capacitor bank may weigh up to hundreds of kilograms This is indicated on the official Pack ing list which is sent with the product Care should be taken to ensure that correct handling facilities ar...

Страница 6: ...sent inside the cubicle The nameplate information should always remain readable to ensure proper identification during the whole life of the APCQ capacitor bank The bank nameplate includes key data like the type the nominal voltage and frequency as well as an HITACHI ENERGY internal article code and data as per international regulations 3 3 Storage The APCQ capacitor bank must be stored indoors in...

Страница 7: ...box with carton standard packaging APCQ L APCQ M APCQ R Box dimensions including pallet LxWxH 800x610x480 mm 720x720x2390 mm Packing APCQ Weight 40 kg Max 550 kg Transportation Horizontal only Vertical only To unpack APCQ L capacitor bank with carton box Remove the nails between the carton box and the pallet and remove the carton Remove fixation screws To unpack APCQ M and APCQ R capacitor banks w...

Страница 8: ...ample of APCQ M and R wood crate and seaworthy packing To unpack APCQ M and APCQ R capacitor banks with wood crates Remove carefully the wall of the crate Remove the seaworthy plastic bag if existing Remove fixation screws in the pallet if existing Similarly any damage on the packing or material must be immediately reported to your Hitachi Energy representative ...

Страница 9: ...actor APCQ M free floor standing cubicles without reactor APCQ R free floor standing cubicles with reactors All APCQ capacitor banks are available in master execution only equipped by default with a RVC controller RVT as an option 4 2 APCQ capacitor layouts Standard APCQ cabinet layout are as per Figure 5 below and is IP23 by default IP54 optional design is possible see 6 7 Figure 5 APCQ IP23 stan...

Страница 10: ...Description 1 Fan air outlet 2 Auxiliary transformer 3 Auxiliary connections current transducer 4 Power Factor Controller RVC by default or RVT as an option 5 UA contactors 6 Busbar point of connection 3 Phase 7 QCap capacitors 8 Internal protection Plexiglas 9 Air inlet 10 Circuit breaker optional 11 Thermal cutoff switch 12 Cable knock out 13 Temporary carton fixations to be removed during commi...

Страница 11: ...ternal layout Number APCQ M APCQ R Description 1 Fans air outlet 2 Auxiliary transformer optional 3 Auxiliary connections current transducer 4 Power Factor Controller RVC by default or RVT as an option 5 UA contactors 6 Air inlet 7 Main busbar 3 Phase for bottom by default or top cable connections 8 QCap Power Module 9 Circuit breaker optional 10 HRC fuses 11 Protection plexiglasses covering coppe...

Страница 12: ...Energy All rights reserved Figure 7 APCQ M APCQ R internal layout 4 4 Power Factor Controllers RVC controller by default if V 440V RVT optional if V 440V otherwise provided by default Note the Quick Start manual of the power factor controller is provided within the capacitor bank Figure 8 RVC and RVT Power Factor controllers ...

Страница 13: ...PCQ M Power module Figure 10 50 kvar APCQ R Power module Ventilation system All APCQ capacitor banks are air forced ventilated IP23 IP54 available as an option APCQ L APCQ M APCQ R Fan quantity 1 2 IP23 1 IP54 Fan location Door Top IP23 Front door panel IP54 Air flow 117 m h IP23 2 x 240 m h hot air out IP54 1 x 520 m h fresh air in door bottom 1 x 520 m h hot air out door top As a matter of prote...

Страница 14: ...that trips the controller power supply hence RVC RVT controller will be off in case of over temperature above 60 C or 140 F inside the enclosure In such event all the capacitors are switched off while fans keep running Thermal cutoff switch automatically closes when temperature goes down to normal conditions DANGER When the thermal protection switches on RVC RVT controller is off but the capacitor...

Страница 15: ...TY LEVEL Public DOCUMENT ID 9AKK107680A4136 REV E LANG en PAGE 15 47 2022 Hitachi Energy All rights reserved Figure 13 Location of thermal cutoff switch in APCQ M and APCQ R IP23 layout Figure 14 Location of thermal cutoff switch in IP54 layout ...

Страница 16: ...ollowing values 40 C or 104 F maximum 35 C or 95 F average over 24h 25 C or 77 F average over one year Humidity maximum 95 not condensing 5 2 Harmonics pollution The installation of an APCQ capacitor bank on networks polluted by harmonics requires special precautions to avoid any risk of resonance In such case consult your HITACHI ENERGY representative 5 3 Mechanical installation 5 3 1 APCQ L capa...

Страница 17: ... mechanical interconnection kit optional 5 4 Electrical installation 5 4 1 Dielectric test All APCQ capacitor banks are fully factory tested including a dielectric test between power terminals and earth 2500V 50Hz 10s If additional dielectric test is required on site the following procedure should be followed Short circuit the three busbars Apply between earth and short circuited busbars 2000V 50H...

Страница 18: ...n one M6 stud located inside the bank plate next to the lower left corner Figure 17 Earth connection in APCQ L APCQ M and APCQ R capacitor bank earth connections two M8 screws located on an earthing bar either lo cated on top or bottom according to top or bottom cable entry Figure 18 Earth connection in APCQ M and APCQ R for bottom cable entry Figure 19 Earth connection in APCQ M and APCQ R for to...

Страница 19: ...uit breaker At the location of the APCQ bank installation the power of the network short circuit must be taken into consideration to define the main connection fuses or rating of the circuit breaker To disconnect the unit from the network HITACHI ENERGY suggests preferably a circuit breaker A 3 phase discon necting fuse or a 3 phase switch with fuses may nevertheless be used The circuit breaker sh...

Страница 20: ...n PAGE 20 47 2022 Hitachi Energy All rights reserved Cable connection Figure 21 APCQ L power cables connection to busbars Connect CT cables CT Figure 22 APCQ L CT connection 5 4 6 APCQ M and APCQ R electrical connections Bottom entry The APCQ M and APCQ R cubicles are bottom cable entry by default 3 ...

Страница 21: ... Figure 24 APCQ M and APCQ R CT connection 5 4 7 Auxiliary power supply Each APCQ cubicle is provided with its own and built in auxiliary power supply connection 230V 50Hz Then there is no need to provide external auxiliary power supply 5 4 8 Current transformer selection Current transformer CT has to be provided locally not provided with APCQ capacitor bank A range of ring and split core CTs exis...

Страница 22: ...VT controller with automatic adaptation to net work phase rotation X4 L x R x 25 10 X4 VA Maximum rms current of the downstream loads including starting current of DC drives X1 Arms Determine the length m and resistance Ω m of CT cables meters L M R Ω m Select the CT such that rating at primary X2 rating at secondary 5A burden 15VA class 1 accuracy or better Multiply X1 by 1 6 X2 Arms Section of C...

Страница 23: ...l marked l Note A gray jumper is provided with the bank in a small plastic bag Use this gray jumper in case shorting of the CT secondary winding is required e g RVC RVT controller removal As long as the RVC RVT controller remains wired to the capacitor bank the gray jumper must be removed for proper operation of the bank 5 4 10 Multi ratio CT and summation transformer When a multi ratio split core...

Страница 24: ...parallel All APCQ capacitor banks are master units i e fitted with a RVC or RVT controller for better availability If two units or more are connected they must be connected as per Figure 28 BANK1 BANK2 CT1 TO LOAD TO FEEDER BANK1 BANK2 CT1 TO LOAD TO FEEDER CT2 Figure 28 Connection of several APCQ capacitor banks in parallel The parameter switching delay of each RVC RVT Controller must be set diff...

Страница 25: ...r 3 mm thickness of the cubicle and pass all cables through Connect earth see 5 4 3 Connect power cables to busbar For all other connections please refer to previous sections Figure 29 APCQ M and APCQ R top cables entry 6 3 Optional Circuit breaker or OT isolator switch connections If a circuit breaker or an OT isolator switch is ordered it is located in the center of the cabinet as per below pict...

Страница 26: ... LEVEL Public DOCUMENT ID 9AKK107680A4136 REV E LANG en PAGE 26 47 2022 Hitachi Energy All rights reserved Figure 30 Optional circuit breaker connection APCQ M and APCQ R top or bottom entry 201 5mm Figure 31 Connection with circuit breaker APCQ L ...

Страница 27: ...an be used with one or up to four APCQ cubicle s It can be located left or right of the APCQ cubicle and by default it is located in the middle of the APCQ cabinets as per Figure 33 Figure 33 Cable entry cubicle with optional circuit breaker layout with four APCQ R cubicles For transportation by default each cabinets is delivered separately and must be assembled on site as per below in structions ...

Страница 28: ...emove lateral panels in between cabinets Place the seal between the cubicles place the cubicles side by side assemble the 8 pins and interconnect them mechanically with the 4 brackets as per Figure 34 Figure 34 Interconnection of cubicles 6 6 Seismic design HITACHI ENERGY can provide a type tested seismic design as per IEC 60068 2 57 2013 IEEE 693 2005 ...

Страница 29: ... 29 47 2022 Hitachi Energy All rights reserved 6 7 IP54 design IP54 design is made with additional fans located in the door Air inlet and outlet are both located in the front door air inlet in the bottom air outlet in the top Figure 35 IP54 design Figure 36 Location of thermal cutoff switch in IP54 layout ...

Страница 30: ...r shipment Different size of crates are used for one two three and four cabinets Below picture show an example of crates for two cabinets Figure 37 Wooden crate with seaworthy packing for 2 APCQ R M cabinets Seaworthy packing dimensions and weight with APCQ cabinets Crate for one cabinet Aprox 1200x800x2400 mm WxDxH 650 kg Crate for two cabinets Aprox 2000x800x2400 mm WxDxH 1300 kg Crate for three...

Страница 31: ...lexiglasses provided by default refer to 4 3 it is also possible to order an optional internal protection grid Then the APCQ M R cabinet will be IP20 open door Figure 38 Internal grid 6 10 Optional base frame 200 mm and flanges base frame covers The APCQ M R cabinets are delivered by default with 100 mm plots in the bottom and flanges It is possible to order a double plots execution 200 mm high ba...

Страница 32: ...d Figure 39 200 mm base frame with flanges 6 11 Optional space heater An optional space heater is requested for high humidity locations where condensation may happen This option is made of one heater and its fan which are located bottom or center of the cabinet as per below picture and one thermostat located top of the cabinet Figure 40 Space heater ...

Страница 33: ...al side Figure 41 Internal lamp 6 13 APCQ from 350 to 550 kvar master slave with one connexion point Such optional design is made of one master one slave cabinet with one single point of connection in the master cabinet There is no need for cable entry cabinet Each of the 2 cabinets will be delivery separately and must be mechanically and electrically interconnected on site refer to upper for mech...

Страница 34: ...aster slaves We can provide Master Slave configuration for larger rating In such case each cabinets master slave s are delivered separately and must be assembled on site The difference with above is that each cabinet must be connected individually to the grid power connections We provide the control cabling in between the different cabinets Please consult us for such special designs ...

Страница 35: ...r supplies power and auxiliary 2 Check cable cross sections and fuses they should be compliant to the capacitor bank rating 3 Check that the CT s is are properly installed closed loop and connected 4 Remove the CT short circuit Note If your APCQ capacitor bank is equipped with an optional RVT refer to RVT instruction manual and don t follow the points below 5 Switch on main supplies Note after a p...

Страница 36: ...ted the AUTO SET procedure is stopped and an error message is displayed For more details please refer to RVC manual 7 Setting target cos ϕ Press the Mode button once to activate manual setting of target cos ϕ The previous value will appear If the RVC has never been programmed before appears on the LCD display Figure 46 View of target cos ϕ setting Set your target cos ϕ by pressing either the or bu...

Страница 37: ...ion 2 undervoltage Min Vrms and Protec tion 3 over THDV Max THDV Figure 42 View of the Protections parameters Once back in AUTO Mode the RVC automatically switches on the necessary steps to reach the programmed target cos ϕ The actual cos ϕ appears on the LCD display Note a negative cos ϕ indicates that the load is re injecting reactive power on the network The RVC continues to work normally For R...

Страница 38: ... RVT Are cables properly connected and yellow marks on terminal OK if not re screw them Note at minimum a yearly maintenance more frequent if polluted environment Note the capacitors must be checked yearly replace them if it is below 90 of initial capacitance phase current Step 2 RVC T is not working Do we have 230V power supply at L2 L3 RVC or PS1 PS2 RVT terminals Check if terminal are properly ...

Страница 39: ...n by qualified electrician Please refer to Chapter 2 for the safety in structions The maintenance procedure is given here below and must be carefully archived during the all lifetime of the equip ment Especially it may help a lot for preventive maintenance and guarantee a long lifetime of the equipment The interval between two maintenances will depend on working conditions but should not be longer...

Страница 40: ... RVC RVT Controller Check contactors and their good operation replace them if necessary Check operation of RVC RVT Controller Measure capacitors currents in the three phases for every power step and record the measurements1 QCap I Phase A I Phase B I Phase C I Nominal OK NOK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Fan replacement OK NOK Fans have to be replaced every 5 years 40 000 hours 1 current ...

Страница 41: ...ock of spare parts for fast maintenance and repair The Parts that HITACHI ENERGY recommends to have on site are for one single APCQ cabinet One controller Two fans which have to be replaced every 4 to 5 years One UA contactor Two QCAP capacitors as per APCQ rating Three power fuses Few auxiliary fuses a plastic bag with 10 pieces One auxiliary transformer Please refer to APCQ price list for more d...

Страница 42: ...2 Hitachi Energy All rights reserved 11 Dimensions and weight 11 1 IP23 standard design Type H mm W mm D mm Weight kg APCQ L 820 500 290 Max 30 kg APCQ M 2185 610 650 Max 260 kg APCQ R 2185 610 650 Max 550 kg Cable entry cubicle 2165 410 610 650 Max 180 kg Figure 50 APCQ IP23 dimensions APCQ M APCQ R APCQ L 819 500 ...

Страница 43: ...E LANG en PAGE 43 47 2022 Hitachi Energy All rights reserved Figure 43 Ground fixation details 11 2 IP54 standard design Type H mm W mm D mm Weight kg APCQ L 830 500 290 Max 30 kg APCQ M 2165 610 710 Max 260 kg APCQ R 2165 610 710 Max 550 kg Cable entry cubicle 2165 410 610 650 Max 180 200 kg ...

Страница 44: ...Q CAPACITOR BANKS STATUS Approved SECURITY LEVEL Public DOCUMENT ID 9AKK107680A4136 REV E LANG en PAGE 44 47 2022 Hitachi Energy All rights reserved Figure 51 APCQ IP54 dimensions APCQ M APCQ R APCQ L 826 ...

Страница 45: ... air cooling Noise APCQ L About 55 dBA 1m APCQ M R About 70 dBA 1m Power factor setting From 0 7 inductive to 0 7 capacitive Starting current setting C k From 0 01A to 3A for the RVC controller From 0 01A to 5A for the RVT controller optional Operation During operation RVC RVT controller displays the number of active outputs the inductive or capacitive power factor the alarm conditions target cos ...

Страница 46: ...r OT switch disconnector Temperature probe with RVT only Internal grid IP20 open door for APCQ M R IP54 enclosure Base frame 200 mm Flange base frame cover Top cable entry cubicle for APCQ M R Cable entry cubicle for APCQ M R one entry cubicle for up to 4 APCQ cabinets Seismic design Voltage presence lamp s and other indication lamps in the front door as per cus tomer requirement Spare heater Othe...

Страница 47: ...he right to make technical changes or modify the contents of this docu ment without prior notice With regard to purchase orders the agreed particulars shall prevail Hitachi Energy Ltd does not accept any responsibility whatsoever for potential errors or possible lack of information in this document We reserve all rights in this document and in the subject matter and illustrations con tained therei...

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