The units are available in the following mechanical constructions:

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2 INTRODUCTION PL-300 units are digital based multifunction protection relays that incorporate simultaneously in a single unit a great number of protection functions that can be selected within a set of options to create a solution adapted to any user's needs. The units are available in the following mechanical constructions: PL-300 Horizontal case: Apart from the protection functions, they incorporate a wide range of optional characteristics as listed below: Reclosing unit: three-phase and by minimum frequency Measurement Communication features Oscillography Events Fault reports Fault locator PL-300 unit includes up to two rear communication ports that allow: PL-300 Vertical case: To link the units to a Protection and Control Integrated System, by means of various communication protocols To access the status, historical data, and settings information, locally and/or remotely through telephone communications PL-300 control features allow it to be used as a bay control in M.V. in small installations, when including command execution capabilities and automatisms. The innovations in PL-300 range of protection relays within TEAM ARTECHE protection and control units are: Unified rated currents (1A-5A) Scale background: 200A Multiprotocol communications Class 0,5 in I, V, and P measures More digital inputs and outputs IRIG-B synchronization input Greater capacity and resolution of events reports, faults reports, oscilloperturbographic recording and measurement historical Measurement of unit temperature Aluminium box Battery voltage measurement 6 setting tables 4 ANSI curves, 6 IEC/BSC curves, 1 definite time and 2 user programmable curves PL-300 Integrated in TCP: Includes the same protection functions as PL-300 and additionally incorporates enhanced control and local automation functions of TCP units (see TCP catalogue). It is applied as protection and control unit for medium and high voltage bays. 2

3 FUNCTIONAL DESCRIPTION PROTECTION FUNCTIONS Phase overcurrent (3*50/51) and neutral overcurrent (50N/51N) If the 67N unit is current polarized, the T9 transformer should measure the polarization current. Protects the installations against phase to phase and phase to earth faults, with instantaneous trips (2 levels) and timed trips (programmable curves ANSI and IEC/BSC, and user curves). Phase directional overcurrent (67) and neutral directional overcurrent (67N) If the model includes directional overcurrent, the type of polarization for phase and neutral directional can be selected by setting: 67 Quadrature polarization Sequence polarization 67N: Polarization by V0 Polarization by V0, I0 (under request) Sequence polarization The connection of units that polarize by V0 will vary upon models, this voltage can be connected to T4, T5, T9 or internally calculated. There are models of PL-300 that include a second directional overcurrent unit. 3

4 Sensitive neutral overcurrent (50/51SN) Models with sensitive neutral unit are able to detect very resistive earth faults. For sensitive neutral measurement, it is necessary to use a toroid transformer connected to transformer T5 or T4, depending on the model chosen. If the model has directional overcurrent, the type of directional for this function can be chosen via setting: angular watimetric I * cos f I * sen f Broken conductor (46BC) Detects when a phase of the installation comes down and protects bays against this anomaly. Breaker failure (50BF) Detects failures in breaker actuation, providing information to other protection units so that these accelerate their trip. The PL-300 includes a three phase 50BF unit, and there are models that include a single phase unit, monitoring each phase separately Overvoltage (59), undervoltage (27) and voltage unbalance (47) There are models of PL-300 with the following voltage functions: overvoltage, undervoltage and voltage unbalance, that can be independently enabled or disabled according to customer needs. Overvoltage function acts against voltage increases that could endanger the isolation and security of the protected units. Isolated neutral overcurrent (67IN) The high sensitivity and the directionality of this function allows detecting earth faults for isolated neutral systems and very resistive earth faults. The isolated neutral current is measured using the same transformer as that used for the sensitive neutral current measurement (see figure above). Voltage controlled overcurrent (51V) Lowers the pickup level of the overcurrent unit depending on the voltage level. This reduces the tripping time in case of severe faults (with voltage fall). Cold Load Pickup Avoids undesired trips produced by overcurrents at connection time. Tap changer lock (50TCL) Enables an independent current level to be set which can be used for various automatisms, such as tap changer lock, to prevent the regulator from acting when the current is enough to damage the tap changer. Current unbalance (46) Undervoltage function protects, those loads connected to the line, which are sensitive to line voltage drops. Voltage unbalance function protects the installation against the harmful effects of voltage unbalances, such as excessive warming in motors, current unbalances, etc. Zero sequence overvoltage (59N) Protects against earth isolation failures in machines. Zero sequence voltage can be obtained through an open delta connection of the secondaries of three voltage transformers (see polarization by V0 of 67N) or calculated as the vectorial sum of the three phase simple voltages. Thermal image (49) Protect elements such as lines, transformers, etc, against thermal overloads, calculating the temperature according to the present and recent load conditions of the protected device. Fuse failure (68FF) Detects if a fuse has blown up in the secondary circuit of the voltage transformers. While detecting this situation, functions 51V, 27 and 59N will remain locked. Protects the installation against unbalances in current as a result of anomalies in the power system or unbalanced loads. 4

5 Frequency unit (81 O, U, R) Frequency units protect the Power System against loss of balance between generated and demanded power. There are models of PL-300 with the following frequency functions: overfrequency and/or underfrequency and frequency rate of change, that can be enabled or disabled independently via setting according to customer needs. There are 5 steps of frequency that can be programmed independently as overfrequency or underfrequency, allowing an underfrequency load shedding. The frequency rate of change unit has 4 steps, this allows the disconnection of loads before reaching undesired frequency levels. Power protection (32) There are models of PL-300 with the following power functions, that can be independently enabled or disabled via setting according to customer needs: Minimum active and apparent power (independent) Maximum active and apparent power (independent) Reverse power The maximum and minimum power (active and apparent) units protect against excessive increases and decreases of the generated power. Zones and pilot protection (85) There are models of PL-300 that communicating with other terminals allow the next pilot protection schemes: Permissive overreach Permissive underreach Directional locking Directional unlocking Additional schemes: ECO Inverse direction locking To carry out these schemes, the instantaneous units of 67 and 67N have 3 zones with independent settings for each zone. The direction of zones 1 and 2 is forwards and the zone 3 can be forwards or backwards. Breaker monitoring (74TC/CC) Breaker supervision by pole. Statistic of number of breaker manoeuvres and breaker health monitoring by SkI2 counter Possibility of supervision of 4 coils Protection functions locking feature Each of the protection functions can be locked by a digital input or logic function (see programmable logic). The reverse power protection acts against motorization of the generator. AUTOMATISMS Syncrocheck (25) It is used to supervise the closing of a breaker with voltage on both sides. The function enables the closing when the angle, frequency and magnitude in both sides comply with the set conditions. Synchrocheck function is made by comparing voltages of phase B in both sides of the breaker. The measurement of T7 is used against measurement of T9 or T5 connected to phase B of the other side of the breaker: Recloser (79) PL-300 units include a three-phase recloser and by actuation of the underfrequency unit (for models with 81U unit) which gives a reclosure possibility for each step of the 81U unit. The recloser also includes the option to enable the sequence coordination function. Such sequence coordination is applied when a number of units is installed downstream and have a slow trip programmed with the last reclosure. This function avoids the fast trip of the units that are in a higher level, during the fast trip of the units that are in the lower side. High Current Lockout (HCL) Provides a second instantaneous overcurrent unit at a higher setting, so that its actuation does not produce automatic reclosing. 5

6 Programmable logic The user can configure up to 15 logic signals, that can be assigned to output relays, LEDs, or inputs for protection functions blocking features. Special automatisms The unit is provided by the following special automatisms: Slack springs automatism: the unit watches the status of an input assigned as "slack springs". If this input is active during a time longer than the one programmed in setting "spring slack time" the output "open spring motor" is generated, this input is used to trip the switch of the spring tightening motor's power supply Voltage presence: The automatism watches if the average compound voltage is within particular values and gives a control signal. When the average compound voltage exceeds the presence threshold, the bit for the control word is set to 1, and if it falls below the absence threshold, that bit is set to 0 Close locking: If the circuit breaker is seen as closed, no closing order is allowed from digital input, command, pushbutton or recloser Open locking: If the circuit breaker is seen as open, no opening order is allowed from digital input, command or pushbutton Logic selectivity functions Logic selectivity functions that lockout the trip, but not the pick-up of the instantaneous overcurrent and isolated neutral directional units, can be done. DATA ACQUISITION FUNCTIONS Measurements The unit measures the following network parameters: Current for each phase (I) Neutral current (I) Phase to ground voltage in each phase (kv) Average phase to ground voltage (kv) Phase to phase voltage for each two phases (kv) Average phase to phase voltage (kv) Active power, three-phase and in each phase (MW) Reactive power, three-phase and in each phase (MVAR) Apparent power (MVA) Power factor Active energy counter (positive and negative) Reactive energy counter (positive and negative) Frequency (Hz) Current maximeter and power, three-phase and in each phase Harmonics distortion factor in IA, IB,IC, and average (in %) Harmonics distortion factor in VA, VB, VC and average (in %) Events recording The unit stores in non volatile memory the last 400 events, which can be retrieved from a PC, with the following data: Date and time of the event Descriptive text of the event Values of electrical parameters Additionally, the PL-300 presents: Unit temperature measurement Optionally: Battery voltage measurement. The battery voltage measurement is executed using the units power supply input 6

7 Fault records The last 20 faults are stored in the non volatile memory, with the following data: Date and time of the fault pickup, beggining and end. Prefault and fault values of electrical parameters Duration and type of fault Level of electrical parameters at the fault's ocurrence time Oscillograph data recorder All the units have an oscillograph data recorder with the next characteristics: Each record comprises the samples from 9 analog signals and the status of 32 selectable digital signals 32 samples per cycle It is saved a maximum of 1200 cycles, and the number of cycles per record is programmable (for example: if 60 cycles are selected, there will be 20 records of 60 cycles). The prefault is programmable by setting. 40 records of 30 cycles, 20 records of 60 cycles or 10 records of 120 cycles with programmable prefault, this can be chosen via setting Configurable pickup Records in non volatile memory The disturbances are collected and exported in COM- TRADE format Demand maximeter The unit stores the maximum current value, plus the time tag for the moment when it occurs. Fault locator (FL) There are models of PL-300 which have a fault locator unit. This unit processes the information collected for each fault and gives as a result of this calculation the distance to the fault point. The distance is given in Km, %, miles,... and it can be accesed via the display or the PC. Time synchronization Via communications Via demodulated IRIG-B input The unit has clock with backup battery. Setting tables Historical reports The unit has 6 setting tables. The active table selection can be made through the keyboard/display, command from the protections console or digital input activation. A queue of 4000 historical records is stored in the non-volatile memory. Each record has currents, voltages and maximum and minimum powers (active, reactive and apparent), detected in a programmable time span. 7

8 MODELS Non-directional PL-300 family (figure 1): NB: 50/ /51N BC + 50BF (3φ) + 74TC/CC NC: NB model + 50/51SN V + Cold Load Pickup + 50TCL + 68FF ND: NC model N + 81O/U + 81R + 25 NE: ND model + FL Figure 1 Directional PL-300 family (figure 2): DB: N BC + 50BF (3φ) + 74TC/CC DC: DB model + 67SN + 67IN V + Cold Load Pickup + 50TCL + 68FF DD: DC model O/U + 81R + 25 DE: DD model + 2 nd 67/67N unit + 50BF (φ) DF: DE model + FL Figure 2 PL-300 for distributed generator interconnection family (figure 2): IB: 50/ N BC + 50BF (3φ) + 74TC/CC + 68FF N + 81O/U + 81R (81U) + High Current Lockout IC: IB model V + Cold Load Pickup + 50TCL + 2 nd 67/67N unit PL-300 for distribution centres family: CR: / /51N BC + 50BF (3φ) + 74TC/CC High Current Lockout Figure 3 All models incorporate the following special automatisms: slack springs automatisms, voltage presence, open locking and close locking. 8

9 SETTING RANGES (6 tables) Phase and neutral overcurrent units (indep.) Timed unit (A) Instanatenous unit (A) Sensitive neutral overcurrent unit Ajuste Rango Paso Timed unit (A) Instantaneous unit (A) Isolated neutral overcurrent unit Low current (A) High current (A) Low voltage (V) High voltage (V) First trip timming (s) Directional unit Phase angle Neutral angle Minimum polarization voltage (V) Broken conductor unit Pickup (I2/I1) Definite time (s) Current unbalance unit Timed pickup (A) Instantaneous pickup (A) Breaker failure unit Phase restore (A) Neutral restore (A) Definite time (s) Pilot protection schemes Setting Type selection Permissive overreach Permissive underreach Directional lock Directional unlock RTP input dropout time Block additional time Loss of guard delay ECO enable YES/NO Minimum RTP delay for ECO Reverse directional lock enable YES/NO Reverse directional lock definite time Overvoltage and undervoltage units (independent) Timed unit (V) Instantaneous unit (V) Zero sequence overvoltage unit Timed unit (V) Instantaneous unit (V) Voltage unbalance unit Timed pickup (V2/V1) Definite time (s) Additional time (s) Time characteristics Setting Curve type Definite time Inverse BSC Very Inverse BSC Extremely Inverse BSC Inverse short time BSC Inverse long time BSC Inverse ANSI Very Inverse ANSI Extremely Inverse ANSI Moderately inverse time ANSI User curve (USAR1 or USAR2) Relapse with disc emulation option Time index Definite time (s) Inst. addit. time (s) Phase and neutral High current lockout units (independent) Activation trip number Pickup (A) Additional time (s) Voltage controlled overcurrent unit Control voltage (V) Thermal image unit Nominal current (A) Alarm threshold (%) Heating ratio (min.) Cooling ratio (min.) Underfrequency and Overfrequency units Type of frequency Max./Min Frequency (Hz) Definite time (s) Minimum supervision voltage (V) Frequency rate of change unit Supervision frequency (Hz) Minimum current (A) df/dt pickup (Hz/s) Additional time (s) Maximum active and apparent power units (independent) HI-Set (%) Timing (s) LO-Set (%) Timing (s) Minimum active and apparent power units (independent) Pickup (%) Timing (s) Reverse power unit HI-Set (%) Timing (s) LO-Set (%) Timing (s) Recloser Number of closures st closure time for phase to phase faults (s) nd closure time for phase to phase faults (s) rd closure time for phase to phase faults (s) th closure time for phase to phase faults (s) st closure time for phase to earth faults (s) nd closure time for phase to earth faults (s) rd closure time for phase to earth faults (s) th closure time for phase to earth faults (s) Security time for phase to phase faults (s) Security time for phase to earth faults (s) Security time after manual closure (s) Dead time for Vref (s) Minimum frequency recloser Min. frequency conditions to reclose YES/NO Min. frequency value for reclosing (Hz) Reclosing time (s) Security time (s) Synchrocheck Minimum voltage side A (V) Minimum voltage side B (V) Enable "if not A and not B" YES/NO Enable "if not A and B" YES/NO Enable "if A and not B" YES/NO Voltage difference enable YES/NO Voltage difference (V) Frequency difference enable YES/NO Frequency difference (Hz) Angle difference enable YES/NO Angle difference (º) Checking time (s) Note: All the units have an enable setting. 9

10 TECHNICAL CHARACTERISTICS Power supply Vdc Range Vdc Ripple over 48 Vdc 20 % over rated Vdc Range Vdc Ripple over 220 Vcc 20 % over rated Burden 8W mín 18W max Current circuits Thermal capacity for phase/neutral current (UNIFIED RATED CURRENT 5/1A) Continuous 20 A For 1 sec. 500 A For ½ cycle 1250 A Burden for In = 5A <0,35 VA Burden for In = 1A <0,02 VA Thermal capacity for sensitive neutral and isolated neutral current Continuous 20 A For 1sec. 500 A Burden for In = 1A <0,02 VA Burden for In = 0,25A <0,002 VA Voltage circuits Thermal capatity Continuous 2 Vn For 1 min. 3,5 Vn Burden for 63,5V 0,015 VA Burden for 100V 0,027 VA Programmable voltages: Simple or compound (only for pin type terminals) Programmable phase order: ABC or CBA Closed Terminals for current and voltage input (optional) Terminal pitch 9,5 mm Digital inputs and outputs without extension board Inputs number 8 Outputs number 7 Digital inputs and outputs with extension board Inputs number 17 Outputs number 14 Optoisolated digital inputs Voltage range Inactive below Voltage range Inactive below Burden Vdc 15 Vdc Vdc 60 Vdc <3 ma Output contacts Trip relays: Relays 1 to 6 (and 8 to 13) Carry 8 A Make (0,5s) 30 A Breaking capacity (L/R=40 ms) 220 Vdc 0,2 A 125 Vdc 0,3 A 48 Vdc 0,5 A Resistive breaking capacity 220Vdc 0,5A 125 Vdc 1 A 48 Vdc 3 A Actuating time O8 ms Auxiliary relay: Relay 7 (and 14) Carry: 10 A Make (0,5s) 30A Breaking capacity (L/R=40ms) 125 Vdc 0,25 A 48 Vdc 0,5 A Resistive breaking capacity 220 Vdc 0,15 A 125 Vdc 0,4 A 48 Vdc 2 A Actuating time O8 ms Frequency Programmable system frequency Operating range 50 or 60 Hz fn ± 5Hz Communication ports Front communication port Connector RS232 DTE 9 pin female D type Cable length 3 m max. Baud rate bps Isolation No Rear communication port types (COM-1 and COM-2) RS232 Connector RS232 DTE9 pin female D type Type of cable Shielded Cable length 15 m max. Isolation 500 V RS485 Connector RS485 DTE9 pin female D type Type of cable Shielded crossed Cable length 1000 m max. Isolation 500 V Glass F.O. Connector G.F.O. ST Wavelength 820 nm Allowed attenuation 8db with 62,5/125 mm glass F.O. Multimode glass F.O. 62,5 /125 mm Maximum distance 1,25 Km Plastic F.O. Connector P.F.O. Standard of HP Wavelength 660nm Allowed attenuation 24,7 db with 1mm plastic cable 22 db with 200 mm silica cable Maximum distance 115 m with 1mm low losses plastic cable 1,9 Km with 200 mm silica cable IRIG-B Input type Input level Cable type Isolation Demodulated TTL 2 shielded wires 500V Accuracies Class 0,5 for V, I and P (untill 120% rated) for unified rated current 5/1A Accuracy in the protections range 3% Curves operating accuracy ± 5% or 30 ms (the higher of both) Battery voltage monitoring (optional): Vdc Range Vdc Range 18 to 60 Vdc 86 to 280 Vdc Environmental characteristics Operating Temperature -10ºC to 55ºC Extended operating Temperature (optional) -20ºC to 75ºC Storage Temperature -40ºC to 85ºC Relative humidity Untill 95% without condensation Mechanical characteristics Weight Approx. weight with packing and docum. Front IP Optional front IP 2,8 Kg 3,8 Kg IP40 IP52 10

11 MAN-MACHINE INTERFACE The PL-300 units allow the communication and dialogue with the user through the associated peripherals: Keyboard-display Rear port's programmable communication protocols The communications protocol for the first rear port (COM-1) is always Procome. The protocol of the second rear port (COM-2), If exists, is programmable. The user can choose via setting out of the next communications protocols: Procome, DNP 3.0, MODBUS, IEC SOFTWARE Featuring: 2 line 16 character LCD with programmable language: spanish/english 16 key keyboard Optical signalling: 7 programmable red LEDs and 1 twocolour status LED 4 signalled push-buttons with programmable functionality. The functionality of these push-buttons are chosen by setting: a- Deactivated b- Functionality programmable by the user c- Programmed as indicated below Breaker closure with signalled LED Breaker open with signalled LED Breaker control: Local/Remote with signalling LED TEAM ARTECHE uses the SIPCON Protections programm, developed for PCs running under WINDOWS. This programm allows clear and simple dialogue with the unit for access to the information stored in it and for setting as necessary. All the configuration accesses are password protected to prevent tampering by unauthorized personnel. The outstanding features of the SIPCON Protections programm include the following: Authomatic detection of the unit which it is in dialogue with Unit status display via status screens Presentation and modification of settings Filling and presentation of all information stored by the relay for its later study in higher levels: events, historical data, faults, etc. SIPCON Protections is compatible with the software used in TEAM ARTECHE's Integrated Protection and Control System, and can be incorporated into them as just one more functional module. Maneuver permission When you select the four push-buttons to have programmable functionality, the keys of the keyboard can also be programmed to carry out commands, which are set by the user. Allows: Displaying of inputs, measurements, date and time, statistical data and last fault Displaying and modification of active table, settings, inputs, outputs and LEDs allocation, except the programmable logic and the oscillograph data recorder Communications: Local and remote The units has: 1 RS232 front serial port, for direct connection to a PC 1 or 2 rear serial outputs for connection to a PC, modem or Integrated Protection and Control System. The rear terminals can be: RS232, RS485, glass F.O. or plastic F.O. 11

12 PIN TYPE TERMINALS Rear board example Vertical Model Horizontal Model 12

13 CONNECTIONS DIAGRAMM PL-300 PIN TYPE TERMINALS Interconnection example 13

14 CLOSED TERMINALS (for analog inputs) Rear board example Vertical Model Horizontal Model 14

15 CONNECTIONS DIAGRAMM PL-300 CLOSED TERMINALS Interconnection example 15

16 PL300 IN BOX DIMENSIONS HORIZONTAL VERTICAL 16

17 PL300 IN TCP DIMENSIONS PL300 PIN TYPE TERMINALS IN TCP 17

18 QUALITY POLICY Since it was founded, TEAM ARTECHE has committed itself to complying with the guideline laid out in its quality policy, oriented towards the continuous improvement of its products and services in each and every one of its activities, in order to obtain complete client satisfaction. The ISO 9001 international certificate shows that the desing, manufacturing and service provided by TEAM ARTECHE follow the most secure and stringent control and supervision procedures. Every unit manufactured by TEAM ARTECHE is designed to operate under severe electrical substation and industrial plant conditions, complying with the most exigent electromagnetic, environmental and mechanical tests, thus incorporating the CE mark of electromagnetic compliance. STANDARDS AND TESTS Electrical Immunity to electrostatic discharges IEC Class IV Immunity to fast transient bursts IEC Class IV Immunity to voltage pulses (surges) IEC Class IV Immunity to 1MHz damped wave IEC Class III Measurement of insulation resistance IEC Measurement of dielectric rigidity IEC Class III Measurement of insulation with voltage pulses IEC Class III Microcuts IEC Electromagnetic Measurement of radiated electromagnetic interference EN55011 Class A, group 1 Immunity to radiated radiofrequency fields IEC Class III Immunity to conducted radiofrequency signals IEC Class III Immunity to 50Hz magnetic fields IEC Mechanical Vibration IEC Class I Shock and bump IEC Class I Environmental Damp heat IEC (+70ºC, 93% relative humidity) Dry heat IEC (+85ºC) Cold IEC (-40ºC) Change of temperature IEC (-20/+70ºC, 2 of 4 hours cycle) 18

19 SELECTION TABLE PL300 MODEL Continuous improvement of its products i s TEAM ARTECHE s one of the main objetives, consequently, this catalogue s information, can be modified without previous advise. To get a completer information, consult the manual or contanct our sales department. MODEL PL300 NB Non directional NC ND NE PL300 DB Directional DC DD DE DF PL300 IB Interconnection IC PL300 CR Distribution center BOX TYPE Horizontal Vertical H V TCP integrated Note 5 T POWER SUPPLY Vdc Y Vdc Z ANALOG INPUTS TERMINALS Pin type Standard terminals 1 Closed terminals 2 EXTENSION MODULE No module 0 9 DIs (6 indepen.) + 7 DOs (3 indepen.) 1 DIGITAL INPUTS VOLTAGE Range: Vdc Y Range: Vdc Z REAR COMMUNICATION PORTS GFO Programmable Protocol A PFO RS232 RS485 Programmable Protocol Programmable Protocol Programmable Protocol B C D GFO (COM-2) + GFO (COM-1) PFO (COM-2) + PFO (COM-1) RS232 (COM-2) + RS232 (COM-1) RS485 (COM-2) + RS232 (COM-1) GFO (COM-2) + RS232 (COM-1) Note 1 Note 1 Note 1 Note 1 Note 1 E F G H I Internal communication for TCP Note 5 T SPECIAL FUNCTIONS AND AUTOMATISMS No functions (81U) + HCL Note 2 1 (included in models IB, IC and CR) 85 2 (only for directional PL-300 models) (81U) + HCL + 85 Note 2 3 (only for directional PL-300 models) Battery voltage measurement and extended operating temperature None Battery voltage measurement 0 1 Extended operating temperature 2 Battery voltage measurement and extended operating temp. 3 Current polarized 67N Note 4 No Yes 0 1 V 0or I Ncalculation None 0 V 0 calculated 1 I N calculated Note 3 2 Both (only for models DD + current polarized 67N, 3 DE + current polarized 67N, DF + current polarized 67N) If you want to have a printed manual with your relay, tell our sales departament. Specify also the language you want fot the manual (spanish or english). TRANSFORMER ARRANGEMENT Model NB Model NC Model ND* Model ND* Model NE* Model DB Model DB + current polarized 67N Model DC Model DC + current polarized 67N* Model DC + current polarized 67N* Model DD* Model DD* Model DD + current polarized 67N Model DE* Model DE + current polarized 67N Model DF* Model DF + current polarized 67N Model IB Model IB + current polarized 67N* Model IB + current polarized 67N* Model IC Model IC + current polarized 67N* T4 T5 T9 I I V N I N I N SN I N I N I N I N I SN I N I SN I SN I N I N 0 I SN I SN V 0 Same transformer arrangement as model ND V 0 V 0 I SN I SN V 0 I SN V 0 I 0 V 0 I 0 V SYNC V SYNC I 0 V 0 I 0 I 0 V SYNC V SYNC V SYNC V SYNC V SYNC V calculated 0 I calculated N V calculated 0 I calculated N V calculated 0 I calculated N I and V calculated Same transformer arrangement as model DD Same transformer arrangement as model DD + current polarized 67N Same transformer arrangement as model DD Same transformer arrangement as model DD + current polarized 67N I 0 V SYNC N 0 V calculated 0 I calculated Same transformer arrangement as model IB Same transformer arrangement as model IB + current polarized 67N N Model CR I N Note 1: For models with 2 communications ports the communication protocol of the port COM-2 is programmable and the one of the port COM-1 is always Procome protocol. Note 2: The unit 79 (81U) is only for models with function 81U. Note 3: For models marked with an * in the transformer arrangement table. Note 4: Only for models with 67N and T9 = I 0 Note 5: When T box type is selected, the rear communication option to select must be T: Internal communication for TCP. 19

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