CIRCUTOR WRU-10-MT User Manual

WRU-10 MT Electronic Earth-leakage Protection Relay

Code

RAL

P24275

REC

Super-inmunized Type A electronic relay. Built-in core balance transformer, 28 mm.Device with self-reclosing system. Symbol on display. It has programmables relays, 3 outputs. Main trip and 2 pre-alarm signals. It has 1 free voltage input for external ON / OFF. Mounting in DIN rail 46277 (En50022) or PANEL 72x72 by means of accesories M5ZFF1. Displays setting values and instantaneous earth leakage current value (TRMS)

GENERAL DESCRIPTION

Type

WRU-10 MT

Sensivity

0,03-0,1-0,3-0,5-1-3 by direct setting

5-10-30 by SETUP

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PRELIMINARY CONSIDERATIONS

CHECKS ON RECEPTION

On receving the instrument, check the following points:

- The unit’s specifications are the same as those on your order.

- Check that the device has not suffered any damage during transport.

You can download more information from CIRCUTOR website, www.circutor.es

SAFETY PRECAUTIONS

The staff using or handling the unit must follow the common safety measures and warnings included in the instruction manual.

The WRU-10 MT unit has been specifically designed for its installation in a electric board, enclosure to a DIN rail or mounted in panel by means of accesories. It has a flashing green led (ON) when it is operation and, therefore, it shows that there is voltage and current in the electronic circuit. The user must make sure that the equipment is not conected to the power supply at all the times, even when the LED is not flashing.

INSTALLATION AND START-UP

The user must take into account and observe the informations and warnings included in this instruction manual to guarantee the correct operation of the equipment and comply whit the safety specifications. The equipment must not turned on until is fully installed in the electrical panel.

The unit´s protections systems might not be effective if the unit is used for purpose other than

those specifications by the manufacturer.

Disconnect the equipment from the power supply when the unit´ssafety protection systems are not working or there are signs of a problem (in case of visible damage). In this case, contact a qualified technical service or with our own technical service (TAS).

INSTALLING THE EQUIPMENT

DIN rail installation. On the inside of the hole must pass all live conductors supplyng electrical energy to loads or part of the installation which requires it to earth leakage protection with this device. In single-phase installation (phase and neutral, L and N), three phase - 3 wires (three phases, L1, L2 and L3) or three phases - 4 wires (L1, L2, L3 and N). Depending on the level of wiring insulation can be pass through the hole

should be inside the electrical board. Please note that with the connected equipment, terminals and opening covers or removing elements, can give access to dangerous parts to touch. The equipment must not be used until it has completely finished installation. The unit must be connected to a power supply circuit protected by fuses in line with the range and power consumption. In turn, the supply circuit must be provided with a circuit breaker or equivalent device to disconnect the equipment from the mains. During the wiring cable is advisable a section permitted between 1 - 1.5 mm2. A recommended torque of 0.5-0.6 N.M. Cable Stripping Tools length 7 mm.

Power supply Operating conditions Safety

Voltage 230 Va.c.. Frequency 50!60 Hz Burden 4,5 VA

CONNECTIONS BY MEANS OF PLUG-IN CONNECTORS

TERMINAL DESCRIPTION FEATURES

1 - 2 EXTERNAL INPUT TRIP / RECLOSE 3 PRE-ALARM OUTPUT RELAY, NO 4 PRE-ALARM OUTPUT RELAY COMMON 5 LOCKED OUTPUT RELAY, NC 6 LOCKED OUTPUT RELAY COMMON 7 SUPPLY 230 Va.c. (Phase or Neutral) 8 SUPPLY 230 Va.c. (Neutral or Phase) 9 TRIPPING OUTPUT RELAY,OFF MOTOR 10 TRIPPING OUTPUT RELAY, COMMON 11 TRIPPING OUTPUT RELAY,ON MOTOR 12 INPUT AUX. CONTACTS

Temperature -20...70 C

+/- 30%

Relative humidity 95% Max. Altitude 2.000 m Protection Ip20

¡ IMPORTANT !

Category III - 300 Vac (En61010) Double - insulated electric shock protection clas II - UL 1053 UL LISTED Certification IEC 60755 - IEC 60947-2 Annex M

Free voltage, not isolated

Rated current: 0,25 Ac.a. Rated voltage: 230 Vc.a. Rated Load: 62,5 V·A

Protected by varistor: 420 Vc.a. - 10 Ac.a. Rated current: 5 Ac.a. Rated voltage: 250 Vc.a. Rated Load: 1.250 V·A

Peso / Wheight : 168

Technical Assistance Service (T.A.S)

If you have any doubts about the running of the equipment or any faults, contact the service staff.

Vial Sant Jordi s/n 08232 Viladecavalls (Bacelona) SPAIN

Tel: (+34) 93 745 29 00 Fax: (+34) 93 745 29 14 email: central@circutor.com

Tripping delay

INS-SEL-0,02-0,1-0,2-0,3-0,4-0,5-0,75-1 by direct setting

3-5-10 by SETUP

DESCRIPTION LED AND BUTTONS

Shows equipment status via a display and 2 LED's. It has 5 button equipment setup and setting and 2 button equipment to do TEST and RESET.

- DELAY SE TTING

- SETUP ROTATION

- SENSIVITY SETTING

- outputs contacts SETTING. (LOCKED SIGNAL)

- ENABLE/DISABLE

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SELF-RECLOSING SYSTEM

INDICATION BY LED AND DISPLAY

MAIN TRIP RELAY LED and display signals a

- .

change of status by changing from green to red. Display event type messages or values

PREALARM SIGNAL. The LED green is blinking

betwen green and red.

BETWEN RECLOSURES. LED is blinking

LOCKED BY RECLOSURES. The yellow LED is

fixed. The equipment arrives al maximun number of reclosures established by the self-reclosing sequence. Red display shows the cause.

No OF RECLOSURES. By short press on the display shows the number of reclosures by earth

leakage faults, partial and total number. The partial number are floating pages. In these pages it can configure the self-reclosing sequence by press button.

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Tripping cause

Test Remote signal trip/reclose

Earth leakage fault

Others MESSAGES by display

Enter setting values

SAVE

Exits setting mode

EXIT

Value reading off scale

OVR

- GREEN led: ON

- RED led, tripped by fault.

- blinking led: pre-alarm

- Reclosures led: fix, maximun reclosures blinking, betwen reclosures

- RESET Button

- TEST Button

- SETUP settings

- change PAGES

Message display

TESt EXT DIF / value

RECLOSING THE EQUIPMENT.

TRIP LOCKED BY RECLOSURES

- BY

Automatic (earth leakage fault or manual). Is shown on display

1. .

2. Manual reclose by pushing button RESET.

External reclose sytem by remote or communications signal. When it forces a trip by remote

signal, only it can reclose by another remote signal. In the case 2 and 3 the partial counters

of reclosures returns to a zero.

The relay only self-recloses after a trip by earth leakage current fault. The Test (red button) only verifies the relay trips the protection. It recloses only by manual pressing RESET button.

MAIN RELAY PARAMETER SETTING

SETTING TRIP DELAY The message and two values appear on the screen after

- , t .

pressing the button. The lowest value indicates the current set value and the highest is the values to be configured which are displayed by pressing The selected value to be saved is displayed by showing the message

SENSITIVITY SETTING The same operation as above setting is carried out by pressing

- , I . I .

- SIGNALLING CONTACTS RELAY STATE, std/+ . Select the default position of the relay contacts

4-5-6 that indicates the situation of locked by reclosures of the device . In (Std) 4-6 NO / 4-5 NC and (+) 4-5 NC / 4-6 NO and appears the symbol in display .

- SELF-RECLOSING SYSTEM, REC. In reclosure partial numbers by press REC button we

configure the self-reclosing sequence referred at the page which it’s showing us. By default is configured nº10 by earth leakage protection and nº5 by shortcircuit/overload fault.

SREC No RECLOSURES TIME SEQUENCES RESET TIME

0 1 6 8, 16, 30, 59, 115 y 224 s 15 minutes 2 30 20, 40 s y 5 min. to the end. 15 minutes 3 8 30 s, 1, 2, 3, 4, 5, 6 y 7 min 15 minutes 4 6 10, 20, 30, 60, 130 y 600 s 15 minutes 5 6 2, 4 y 8 min. to the end. 15 minutes 6 7 30 s, 1, 2, 3, 4, 8 y 16 min 30 minutes 7 10 1 min 30 minutes 8 10 90 s 30 minutes 9 8 2, 4 y 6 min. To the end. 15 minutes 10 10 3 min 30 minutes 11 7 2, 4, 8, 16, 32, 32 y 32 min 15 minutes

12 31 2, 4 y 6 min. to the end. 60 minutes 13 3 2, 4 y 8 min 15 minutes 14 (empty) Empty space for personalized secuence ...

DISABLED

RECLOSE SEQUENCE BY SHORTCIRCUIT/OVERLOAD FAULT

SREC No RECLOSURES TIME SEQUENCES RESET TIME

0 1 2 1 min 30 minutes 2 2 1 min 60 minutes 3 2 90 s 30 minutos 4 2 90 s 60 minutes 5 2 3 min 30 minutes 6 2 30 min 30 minutes 7 6 30 min 30 minutes 8 (empty) Empty space for personalized secuence

In the case that it is disabled the two secuences types disappear

The relay only self-recloses after a trip by earth leakage current fault and by shortcircuit/overload fault. The Test (red button) only verifies the relay trips the protection. It recloses only by manual pressing RESET button.

SETUP ADJUSTEMNT

PROG

With the button the submenus are browsed and with the button the values to be selected are displayed to enter the value. The equipment configures the value by displaying on the display and then exits Setting Mode. If the keypad remains inactive for a certain time, the equipment automatically exits Setting Mode and displays without changing the setting

“EXIT” . In the submenu TRIP ( circuir breaker ), Cb for

shortcirucuit/overlaod without coil and SC/UC with coil.

PROG

SAVE.

d d

PROG

. Press

“SAVE”

REC

¡ IMPORTANT !

( t , I and std/+ )

d d

DISABLED

¡ IMPORTANT !

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M98232601-03-14A

WRU-10 MT Electronic Earth-leakage Protection Relay

Button PROG

FREC

LIM

Pre-alarm current %

ALAR

Delay pre-alarm seg.

Contact NO/NC

Reconectable

RSTC

TRIP

50 Hz 60 Hz

10 s, 30 A

1 s, 3 A

OFF

50 60 70 80 MAIN 0,02 0,1 0,2 0,3 0,4 0,75 1 3 NO YES AUTO MANU NO YES Cb SC UC

- FREQ, (50) frecuency (Hz)

- LIM,(1s, 3A), range of values (Id / td)

- ALAR, pre-alarm. . Id ( OFF), It’is not pre-alarm. . Td ( 20 ms), time. . SP (NO),contact states. 3-4 [NA/NC] .AU (AutO), Relay reclaim the state.

- RSTC, (NO), Reset the partial reclosures.

- TRIP, (Cb), Motorized circuit breaker.

Button

Earth leakage protection and self-reclosing system by means of external breaking element asociated to output contacts 9-10-11-12.

MOTORIZED CIRCUIT BREAKERS:

- WITH COIL

- WITHOUT COIL

Default values in SETUP

SUBMENUS SP(ALAR) and AU(ALAR) are disabled when trip with coil are activated.

MENU SETUP

PROG

DIMENSIONES

REC

GUARDA CAMBIOS

SAVE CHANGES

SALIR SETUP

EXIT SETUP

PROG

REC

PROG

CONNECTION WRU-10MT + MT- 62/64

NL1 L2

MT - C- 62/64

- C- 62/64 + F6 MT

External ON/OFF

WRU-10 MT

MENU SETUP

230 Vac

LOAD

Without trip coil

SETTING SETUP

TRIP:

Alarms

Reset

Test

Protection relay with self-reclosing

External ON/OFF

MENU SETUP

230 Vac

LOAD

With trip coil Shunt coil, TRIP SC Undervoltage coil, TRIP UC

INStantaneous Protection, 30 mA only with shunt coil.

SETTING SETUP

TRIP:

PROG

REC

SELF-RECLOSING SEQUENCES CONFIGURATION

NL1 L2

Alarm

Reset

Test

WRU-10 MT

Protection relay with self-reclosing SETUP: TRIP Sh

Shunt coil Undervoltage coil

PROG

REC

BY EARTH LEAKAGE FAUL

REC

PLUG IN CONNECTORS

ACCESSORIES

PROG

PROG PROG

BY SHORTCIRCUIT/OVERLOAD FAUL

REC

M98232601-03-14A