Specificatin fr a cmmunicating Panelbard system t mnitr, cntrl and maintain LV electrical installatins A system fr: - Mnitring the prtectin and cntrl devices in an electrical installatin and prviding the Building Management System (BMS) with infrmatin n their status. - Transmitting rders frm the BMS t the switchbard cntrl devices - Metering and transmitting electrical installatin pwer cnsumptin data t the BMS Latest update: 2014-06-04-1 -
Cntents Specificatin fr a cmmunicating Panelbard system t mnitr, cntrl and maintain LV electrical installatins... 1 1. General recmmendatins:... 3 2. Applicable standards:... 3 3.1 General characteristics... 3 3.2 Measure... 4 3.3.1 Incmer ver 125A / Mlded Case circuit breaker... 4 3.2.1 Incmer under 125A... 4 3.2.2 mdular Feeder... 5 3.3 Operating and installatin principles... 5 3.3.1 Psitining, installatin and cnnectin f cmmunicating data cncentratrs... 5 3.3.2 Operatin f the cmmunicating system... 5 3.3.3 Testing f the system in the switchbard... 6 4. Operatin and maintenance... 6 5. Sustainable develpment... 6 Latest update: 2014-06-04-2 -
1. General recmmendatins: Cmmunicating lw vltage switchbards are a respnse t regulatry incentives and the need t cntrl pwer cnsumptin and energy csts They als imprve cntinuity f service by increasing the availability f pwer. The installatin switchbard shall therefre be equipped with a cmmunicating system that makes it pssible t: - mnitr mdular prtectin and cntrl units and prvide the centralized management system (PLC, supervisr, management sftware, etc.) with infrmatin n their status. - transmit rders frm the centralized system t the switchbard cntrl units - meter and transmit installatin pwer cnsumptin data t the centralized system 2. Applicable standards: Number Title Use IEC/EN 61131-2 Prgrammable cntrllers - Equipment requirements and tests IEC/EN 60947-5-1 Part 5-1 IEC 60947-5-4 IEC/EN 61439-1 & 2 Cntrl circuit devices and switching elements Electrmechanical cntrl circuit devices Cntrl circuit devices and switching elements Methd f assessing the perfrmance f lw-energy cntacts Lw-vltage switchgear and cntrlgear assemblies Define Input and Output signal characteristics Perfrmance and tests f auxiliary cntacts Perfrmances f lw energy auxiliary cntacts Perfrmance f the electrical assembly IEC/ EN 60664-1 Insulatin crdinatin Characteristics f devices fr insulatin IEC/EN 62053-21 & 31 Meter standard Pulse metering 3. Characteristics, perating principle and indicatins: 3.1 General characteristics The cmmunicating Panelbard system system cmprises: One r mre cmmunicating data cncentratrs using an pen prtcl such as Mdbus RS485 serial line r Mdbus TCP/IP Gathering digital and analg inputs and cntrlling utput whse inputs / utputs are rganized by channel, with each channel used t cnnect ne electrical device cmpliant with the IEC/EN 61131-2 standard supplied by safety extra lw vltage <= 24 V DC Indicatin auxiliaries that signal mdular circuit breaker pen/clsed and tripped status cmpliant with the IEC/EN 60947-5-4 standard utput vltage 24 V DC Auxiliaries fr cntrl and indicatin f pen/clsed status f breakers r cntrl units (cntactrs and impulse relays) in accrdance with the IEC/EN 60947-5-1 standard Output vltages 24 V DC and 230 V AC Energy meter in accrdance with the IEC/EN 62053-21 & 31standard Cnnectin cables between the data cncentratr and the devices r auxiliaries equipped with plug-in cnnectrs The system shall allw the cnnectin f mnitring and cntrl units equipped with 24 V DC cntacts. Latest update: 2014-06-04-3 -
The system will integrate a switchbard display unit which will be cnnected via the Ethernet TCP / IP netwrk t the interfaces f cmmunicating switchbard. The switchbard display unit will ffer a direct and real-time access f display, simple cntrl f lad and device. The switchbard display unit will integrate functins f display : data f energy cnsumptin Fllwed electric values fr the mnitring f the installatins alarms and events Fllwed frm the qualitative value f the energy state / status f equipments, pened, clsed, activated, typical f release Fllwed frm the peratin data and frm predictive maintenance. The switchbard display unit will integrate functins f simple cntrl f lad and device via lgic utputs, rders f actuatr. 3.2 Measure 3.3.1 Incmer ver 125A / Mlded Case circuit breaker Measure units shall ffer measurement withut additinal mdule t circuit breakers. Measures shall be either: Currents (Phases, Neutral, average, max), vltage, pwer, Energy, Ttal Vltage Harmnic distrtin, Ttal current harmnic distrtin. Accuracies f the entire measurement system, including the sensrs shall be : Current: Class 1 as per IEC 61557-12 Vltage: 0.5 % Pwer and energy: Class 2 as per IEC 61557-12 Rgwski current transfrmers shall be used t ensure accurate measurements frm lw current up t high currents Fr safety reasn, prtectin functins shall be electrnically managed independently f measurement functin by a dedicated ASIC. The measurements shall be displayed n the breaker itself and n a remte system via Ethernet r Mdbus cmmunicatin. In additin t these slutins it shall be pssible t cnnect a remte display. 3.2.1 Incmer under 125A Energy metering cunter shuld be r ffer direct measure up t 125A withut external current transfrmer, 1P+N, 3P, 3P+N LV netwrk mnitring DC pwer self supply withut external DC pwer supply equipped with LCD display. Measurement features: Active Energy (kwh) ttal cunter Active Energy (kwh) part-time cunter with reset Active Energy (kwh) per time step Reactive Energy (kvarh) ttal cunter f cnsumptin Reactive Energy (kvarh) part-time cunter with reset Average vltage (V) Current per phase (A) Ttal active pwer (W) Ttal reactive pwer (VAR) Ttal apparent pwer (VA) Ttal Pwer factr Frequency (Hz) Time f functining (Hurs) The energy meter will have t allw the cunting up t 4 price rates thanks t an internal clck, r 2 price rates thanks t a lgic input. Latest update: 2014-06-04-4 -
The energy meter must be equipped with a prt bearing f cmmunicatin Mdbus RS485. The smth running f the cmmunicatin Mdbus can be visible thanks t a twinkling LED. The brnier f cnnecting f the bus f cmmunicatin Mdbus will be cnstituted by 4 brders: 2 brders fr Mdbus RS485 2 wires 1 brder fr 0V (mass fr lng utstrip f bus) 1 brder fr the plait f earth(grund) (fr electrmagnetic cmpatibility - CEM) The energy meter must be equipped with a custmizable utput cntact t make f the extensin display(transfer) f cnsumptin f active Energy r fr the extensin display(transfer) f alarm (custmizable threshld) 3.2.2 mdular Feeder Energy metering cunter shuld be r ffer direct measure up t 125A withut external current transfrmer, 1P+N, 3P, 3P+N LV netwrk mnitring DC pwer self supply withut external DC pwer supply Equipped with LCD display. Measurement features: Active Energy (kwh) ttal cunter Active Energy (kwh) part-time cunter with reset Equipped with setting pulse utput t cmmunicate Active energy cnsumptin Prduct measurement capability shall ffer: T cmmunicate indicatin f Fault types (LT, ST, instantaneus, grund fault), Interrupted current. Status f circuit breaker peratins: Open/Clse/Tripped/NA Ti24 direct device cnnexin with pre-cnnectrize patchcrds (100 t 860 mm) 3.3 Operating and installatin principles 3.3.1 Psitining, installatin and cnnectin f cmmunicating data cncentratrs When the applicatin requires the usage f several data cncentratrs: The data cncentratr enabling cmmunicatin with the mnitring system (utside the switchbard) culd be using a Mdbus TCP/IP The thers data cncentratrs inside the switchbard shall be using Mdbus RS485 SL The different data cncentratrs shall be intercnnected by Mdbus RS485 SL chaining, inside the switchbard The data cncentratrs shall be psitined fr quick viewing f cnnectins with the mnitring and cntrl devices They shall be capable f being installed between the rws f mdular devices, withut taking up any additinal space n the DIN rails The data cncentratrs shall be equipped with plug-in type input/utput terminal blcks The cncentratrs / devices links shall preferably be f the prefabricated type with cnnectrs that allw the cncentratr t be cnnected t the devices in a single peratin and with n risk f errr The data cncentratrs may be munted n the pwer distributin blcks s as t ptimise the cmbined installatin f pwer distributin and mnitring. 3.3.2 Operatin f the cmmunicating system The data cncentratrs shall be capable f being easily integrated int the installatin s cmmunicatin netwrk thanks t autmatic adaptatin f their cmmunicatin parameters t match thse f the netwrk They shall prvide data t the supervisr in Mdbus tables, at fixed addresses that require n cnfiguratin The data shall be f the fllwing type: psitin f inputs/utputs r Latest update: 2014-06-04-5 -
calculated values: number f switching peratins f dwnstream devices, lad perating time, pulse metering with cnversin t significant values The cncentratrs shall be capable f receiving frm the supervisr, by writing in the Mdbus table at fixed addresses requiring n cnfiguratin, pen / clse type rders (0 r 1) applicable n each channel They shall be capable f having the rders executed by the cntrl devices, after having taken int accunt the devices real psitins The auxiliaries fr cntrl and indicatin f the pen/clsed status f cntrl units (cntactrs and impulse relays) shall be capable f prcessing bth 24 V DC and 230 V AC cntrls and f managing pririties between 24 V DC and 230 V AC. The Mdbus TCP/IP data cncentratr shuld enable t mnitr and cntrl auxiliaries and devices using integrated web page The Mdbus TCP/IP data cncentratr shuld enable t mnitr analg sensrs 3.3.3 Testing f the system in the switchbard The manufacturer shall supply a (sftware) tl fr verall testing f the system, within the limits f the switchbard: the entire data transmissin and cntrl chain between the mdular devices and all f the cncentratrs, including cmmunicatin. The test tl shall supply a reprt that includes the list f all the devices cnnected t each channel f the data cncentratrs as well as a diagram describing the cnfiguratin f the system with indicatin f the assciated Mdbus addresses. 4. Operatin and maintenance The cmmunicating data cncentratrs shall stre all f the calculated values, including in the event f a 24 V DC pwer failure. They shall be replaceable withut requiring any recnfiguratin ther than that related t the meters The system shall be capable f taking int accunt new mdular devices added t the installatin withut requiring any recnfiguratin f the data cncentratr. 5. Sustainable develpment Prductin site rganizatin shall cmply with the requirements f the ISO 9002 and ISO 14001 standards. Fr the devices, the manufacturer shuld be able t prvide fllwing arguments: Hazardus substances cntent (RHS cnfrmity declaratin & REACH assessment referring t last update f SVHC candidate list). Envirnmental impacts characterized by several indicatrs (thrugh Life Cycle Analysis & Prduct Envirnmental Prfile) with at least: Raw material depletin Energy depletin Glbal warming / carbn ftprint Water depletin Recyclability infrmatin (Prduct Envirnmental Prfile / End f Life Instructin). The devices shall be delivered in packaging cmpliant with Eurpean Directive 2004/12/CE. Latest update: 2014-06-04-6 -