Technical Bulletin / Datasheet: MarinaGuard Series
Contents
1. 4 150 l 5 828 ine P fet te 4 125 2 063 10 750 2063 7 TOP 1 i R 425TOP SEE DETAIL A 74 BENDER The Power in Electrical Safety Canada Mississauga ON Toll Free 800 243 2438 Main 905 602 999C Fax 905 602 9960 E mail info bender ca com USA Coatesville PA Toll Free 800 356 4266 Main 610 383 9200 Fax 610 383 7100 E mail info bender org bender org bender org mobile Document NAE1092812 04 2013 Bender Inc2. G D 8 a LO TT M A TR 111214 eee BDRM o0000 Ei ale reuse le w MM W TR 2 22 24 LO Ke m La Dae a LO Net Status A Last oer 410P Vv prz o u s y O F BENDER MG S and MG T models Connection to BENDER s communication bus Home Bus overview Alarm Tools Settings Info 2 coma6o IP 1227 0502 Ts Ne Mecsured value Al Test Des 00 comso OET eesjarcszus s one acmsase 0 cos eosera i2 007 someDa27P cos aemasze Dce1 113 Pehara coce TCP IP Modbus TCP WY AI Modbus TCP SCADA BMS Ethernet Modbus TCP I COM460IP BENDER Communication Bus eiee EE re A MG S and MG T multi channel models support connecting to BENDER s advanced communication bus for remote notification of alarms on shore power When connecting to the COM460IP communication module status of MarinaGuard panels may be viewed remotely at a master station via a standard Ethernet network or Modbus TCP fieldbus communication When using an Ethernet network mobile devices con nected wirelessly to the network can view the status of MarinaGuard panels using a special mobile version BENDER s communication net work supports connecting to other BENDER devices as well including the MK2430 remote indicating station which manages the status of multiple connected devices from a single remote
3. _ Current Transformer CT ae i Position 3 Shore Power Pedestal N Receptacle Circuit Breaker a O Se Receptacle mh 7 NY CE BENDER Post Installation Adjustments In most applications changing settings on enclosed ground fault monitors is not necessary However should changes be required refer to the respective devices below MG 1 MG 2 and MG 3 Series MarinaGuard Panels Settings for MG 1 MG 2 and MG 3 panels are changed on the enclosed ground fault monitor with DIP switches and potentiometers A1 A2 T R 11 12 14 BENDER RCM Serie 470 RESET ON ALARM MONITOR E E o x a 10 30 100300500 x10 MG S and MG T Series MarinaGuard Panels Combined TEST and RESET button short depress lt 1s RESET long depress gt 2s TEST Power On LED Alarm LED Illuminates when the response value has been ex ceeded Flashes when the CT connection alarm is active LED bar graph indicator shows the measuring value in per cent of the preset response value Potentiometer for setting the response delay 0 1 s Potentiometer for setting the response value x 1 10 mA DIP switch settings white switch position 7 Alarm relay operation settings A Normally de energized B Nor
4. Pedestal Ground Possible ground fault paths in a shore power application Locating Ground Faults MG S MG T Series MarinaGuard Panels If an MG S or MG T series MarinaGuard is being used for branch detection fault location will be done automatically The display of the enclosed ground fault monitor will indicate which branch has the fault The screen will also display how much leakage current was de tected MG T models additionally feature individual contact outputs for each branch which may be used for remote notification or branch in terruption via a device such as a shunt trip breaker ALARM 1 1 Residual current 130 mA Addr 2 Chan 12 Digital display of MG S MG T ground fault monitor displaying a ground fault on branch 12 Locating Ground Faults MG 1 MG 2 and MG 3 Series MarinaGuard Panels If an MG 1 MG 2 or MG 3 is being used for feeder protection several options are available for locating faults e Shutting off individual branch breakers until pressing the RESET button on the front of the panel resets the system back to the normal condition Using a low mA clamp on ammeter to clamp around individual shore cords A clamp on ammeter must have all conductors going through the clamp on current transformer Enclosure Dimensions All Models Dimensions listed in inches 150 TOP 2813
5. E BENDER Wiring All MarinaGuard models require a 120 VAC supply voltage Connect L to the designated terminal block and N to the terminal on the enclosed ground fault monitor labeled A2 e Connect the current transformer s per the appropriate schematic below For models which support more than one current transfor mer connect to the appropriate K L terminal Use minimum AWG 24 maximum AWG 12 THHN wire All models have contact outputs which may be used for remote notification Refer to the appropriate schematic below for the normal ly open or normally closed contact to connect to Example Wiring MG 1 Example Wiring MG S Branch s fe Cust Connection i Cust Connection An 120 VAC Aux Supply 120 VAC Aux Supply N E N paze 7 L L I Le Eel IFEHEMNI Cust Connection Cust Connection l TES Gta eiel GROUND mE GROUND ame t Tals ST o ol Uo Teel FR o I R O STON 2 O Q nma Current ER gazze Transformer E
6. ROW 120 VAC N O E 120 VAC N O F Current Transformer For External Alarm _ For External Alarm o 3478 nna 12345678910112 E lalel lalelelelale l2lelelalelelela el a aiig l 2 2l Z ql gagag laaaaaa izi e a as TN O 1 2 Exte ICi t To External 120VAC N O Ei External Current Transformer s veer PAE EN Uo Aarin Contactor Monitoring Feeder s pa Monitoring Feeder unt Trip Etc Branch es o To External 120VAC N O Alarm Contactor Repeat For All Channels Shunt Trip Etc ZE BENDER Wiring Current Transformer Placement in a Typical Shore Power Application Each monitored feeder or branch requires one current transformer The current transformer must be large enough to have all conduc tors passing through it Position 1 before the primary MCB and position 2 between the primary MCB and branch CBs are recommen ded placements for feeder monitoring and typically used with MG 1 MG 2 and MG 3 MarinaGuard models Position 3 individual branches is for branch monitoring and is recommended with MG S and MG T series MarinaGuard panels 240 120V Grounded Neutral Supply Transformer i Current be Paai ay E J Primary Main Circuit Breaker Current Power Distribution a CT Main Circuit Breaker J E D o E east 2 Branch Circuit Breakers ae aa a 1 al Ground Fault Monitor 5 OLS Ed T fm 4 fy YS a J O O O p J PTN oo g O OO ow a
7. FZ BENDER The Power in Electrical Safety MarinaGuard Series Ground Fault Monitoring Panel For Marina Shore Power BENDER Inc 700 Fox Chase Coatesville PA 19320 Ph 800 356 4266 610 383 9200 Fax 610 383 7100 MarinaGuard Series P BENDER Ground Fault Monitoring Panel For Marina Shore Power Ground Fault Monitoring Panel MarinaGuard series panel Features Satisfies requirements of NEC article 555 3 Ground Fault Protection Ground fault monitoring for marinas Options for single feeder monitoring and branch monitoring Preset to 100 mA trip level steplessly ad justable down to 10 mA for feeder pro tection 6 mA for branch protection TEST and RESET pushbuttons on front POWER and TRIPPED LEDs on front Strobe light for easily visible alarm indication Contact outputs for remote notification or connection to a feeder shunt trip breaker NEMA 4X rated lockable enclosure Option for SMS alarm messaging to cell phones Multi channel versions support connec tion to BENDER communication gate ways to standard protocols such as Modbus TCP Description MarinaGuard series panels detect ground faults for shore power in marinas Options are available for monitoring either main feeders or branch circuits The MarinaGuard satisfies the new requirements in the 2011 National Electrical Code article 555 3 Ground Fault Protection All models may be set to 100 mA for feeder protection and may b
8. e set lower if desired Models for monitoring branch circuits may be steplessly adjustable down to 6 mA All models feature a NEMA 4X rated enclosure with test and reset buttons power and alarm LEDs and a strobe light on the top of the enclosure for clear indication if a fault has occured Applications e Shore power for marinas e Feeder and branch monitoring e Systems which must satisfy the requirements of NEC 2011 Article 555 3 Function MarinaGuard panels detect faults by means of current transformers CTs One CT is re quired per feeder or branch to be monitored see ordering information Each feeder branch will have all conductors going through the current transformer For example in 240 120 V shore power applications both hot conductors as well as the neutral must be placed through the current transformer If a ground fault is detected the connected MarinaGuard will activate an alarm The Fault Alarm light on the front of the enclosure will illuminate and the strobe light will activate For the branch protection model a fault on any branch will activate the LED and strobe light Once the fault or faults have been cleared holding the reset button for at least 2 seconds will clear the alarm lights and return the panel to the normal state Each model features dry contact outputs which may be used for remote notification to a harbor master s office The dry contacts may also be used to connect to a feeder shunt trip breaker i
9. f interruption is desired The C option is available for all model types which allows for wireless SMS alarm mes saging to cell phones when an alarm has activated Additionally MG S and MG T branch protection models features compatibility with BENDER s digital communication system which may be used to integrate with Ethernet and Modbus TCP networks ZE BENDER MarinaGuard Panel Front Example shown MG 1 MG S MG T MG 2 and MG 3 versions have one set of ON ALARM lights and TEST RESET buttons per monitor 2 total for MG 2 3 total for MG 3 3 1 POWER ON LED TEST pushbutton Illuminates when power is applied and no alarms are present Pushing the button ini Ae tiates a self test of the monitor pz 2 ALARM LED RESET pushbutton Illuminates when one or more alarms are detected Holding the button for at least 2 pes seconds will reset the device if alarms have been cleared 3 Strobe Light Illuminates when any alarms are detected eS Le Strobe ON indicates Ground Fault Ground Fault Monitor E paket Panstee Ordering Information Current Transformers 7 O 2 S jane n es W0 S20 g 0 75 20 mm B 911787 CEAINDB supron noose W1 S35 1 4 35 mm B 911731 W2 S70 2 4 60 mm B 911732 o W3 5105 4 1 105 mm B 911 733 p W4 S140 5 5 140 mm B911 734 a W5 S210 8 25 210 mm B911 735 Q J One current transfo
10. mally energized 8 Fault memory latching behavior settings A Fault memory ON latching mode B Fault memory OFF non latching mode 9 Sample response value settings A 10mA B 30mA C 100 mA 1 10 D 300 mA E 500 mA F 1000 mA 10 Time delay settings A x1 B x10 is MG S and MG T series panels utilize a digital display with built in menu to make settings changes Refer to MarinaGuard User Manual NAE1095810 for information on changing available settings ZE BENDER How Does a MarinaGuard Detect Ground Faults In a typical shore power application the secondary of the shore power transformer provides grounded 240 120 VAC power When mo nitoring the feeder the MarinaGuard will be connected to a current transformer The current transformer will be placed around both hot conductors and the neutral the ground conductor is not placed through The MarinaGuard will detect faults downstream of the current transformer including any leakage current between the transformer and wiring to the pedestals or to a connected boat Ground faults are detected by looking for a net imbalance of current between the phases this correleates to an equivalent amount of leakage current downstream Branch monitoring works in a similar manner however each individual branch leading to the pedestals is monitored seperately Notification can be provided as to the particular branch that has the ground fault MarinaGuard Shore power supply
11. rmer is required per feeder branch Ordering Information MarinaGuard Name Quantity of Adjustable Number of Supports COM4601P SMS Alarm feeders branches trip level contact outputs Communication Gateway Messaging Support MG 1 1 10mA 10A 1 individual No No MG 2 2 10mA 10A 2 individual No No MG 3 3 10mA 10A 3 individual No No MG S 12 6mA 20A 1 common Yes No MG T 12 6mA 20A 1 common 12 individual Yes No MG 1C 1 10mA 10A 1 individual No Yes MG 2C 2 10 mA 10A 2 individual No Yes MG 3C 3 10mA 10A 3 individual No Yes MG SC 12 6mA 20A 1 common Yes Yes MG TC 12 6mA 20A 1 common 12 individual Yes Yes PE BENDER Option C Wireless text messaging of alarms to cell phones Option C includes a built in module which allows for SMS messaging to technicians harbor masters when an alarm is activated The system is wireless and uses a SIM card for messaging SIM card and SMS service sold separately Alarm notifications and technician phone numbers are customizable Multiple phone numbers may be set to simultaneously receive alarm text messages Most settings are preconfigured at the factory and very little field adjustments are required A PLC and connected GSM module are used to control the alarm notification All MarinaGuard models support the C option
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