USER`S MANUAL
Contents
1. installation in compliance with EMC shielding grounding filters and cables These notes must be observed for all CE marked products The manufacturer of the measuring system or installed de vices is responsible for the compliance with the required limit values demanded by the EMC and LVDlegislation 5 Operation Measuring systems including N27D meters must be equip ped with protection devices according to the corresponding standard and regulations for prevention of accidents After the instrument has been disconnected from the supply voltage live components and power connections must not be touched immediately because capacitors be charged The housing must be closed during operation 6 Maintenance and service Please observe the manufacturer s documentation Read all product specific safety and application notes in this user s manual Before taking the meter out ensure the power supply is off The removal of the meter housing during the guarantee period may cause its cancellation The meter fulfills requirements related to electromagnetic compatibility in the industrial environment 4 INSTALLATION 4 1 Mounting The meter is designed to be mounted on a 35 mm rail acc to EN 60715 The meter is equipped with terminals which enable the connec tion of external wires with cross sections input current signals 2 5 25 mm solid wire 4 25 mm stranded wire input voltage signals 12. 5 16 mm solid wire 2 5 16 mm stranded wire supply up to 2 5 mm Meter dimensions are presented on the fig 2 33 60 22222 BUU 000 000 Fig 2 Overall dimensions 10 contact with another devices emitting heat eg other meter N27D You must keep a minimum 5 mm distance between the devices to allow emit heat from the housings to the ambient Otherwise temperature outside of meter which is in direct contact with the other device may exceed the rated operating temperature stated in operating conditions Meters shouldn t be mounted on the rail in direct 2 4 2 External connection diagram The power supply must be connected by a two wire conductor of suitable wire cross section ensuring its protection by an installation cut out 230V a c 71819 110 11 12 13114 15 270 ZN 3 4 A Y L1 L2 N 500 V 63 A Fig 3 Electrical connections of the N27D meter 11 5 HANDLING Unit of displayed value Change Measured displayed value value Fig 4 Front view After connecting external signals and switching the supply on the meter displays name ne 1
3. RAIL MOUNTED NETWORK METER TYPE N27D USER S MANUAL CE Contents 1 APPLICATION sss yass 5 2 METER SET cion 6 3 BASIC REQUIREMENTS OPERATIONAL SAFETY 6 4 INSTALLATION 10 4 1 10 4 2 External connection 4 11 5 HANDLING ar 12 6 TECHNICAL DATA escocia 13 7 ORDER CODES 1 APPLICATION N27D meters are designed for direct a c measure ment voltage current frequency and active power The design allows for installation of the meter for modular switchgear in accordance with EN 62208 meter has a width of 3 modules on 35 mm rail The current is measured through current trans former CT Measured values are displayed on 4 digit readout field Switching between measured values is realized by pres sing a button 2 Fig 1 View of the N27D meter 2 METER SET The meter set includes N27D meter eee 1pc user s 1 pc warranty certificate 1 pc 3 BASIC REQUIREMENTS OPERATIONAL SAFETY Symbols located in this service manual mean WARNING Warning of potential hazardous situations Especially important one must acquaint with this before connecting the module The non observance of notice
4. ange 45 65 Hz Additional errors in rated operating conditions from ambient temperature changes 50 of basic error 10 Preheating time 15 minuts Measuring time 0 55 Rated operating conditions supply voltage 230 V 10 45 65 Hz input voltage Un 500 0 2 40 0 500 0 Hz input current In 63A 0 45 0 500 0 Hz ambient temperature 10 23 55 C storage temperature 25 85 humidity lt 95 condensation inadmissible work position any input signal sinusoidal THD lt 8 14 admissible peak factor 2 Readout field display 4 digit LED digit height 8 5 color yellow indication range 1999 9999 Ensured protection grade IP 00 acc to EN 60529 Overall dimensions 110 x 53 x 60 mm Weight lt 0 25 kg Power in supply input lt 2VA in voltage input lt 0 05 VA in current input lt 0 05 VA Test voltage voltage input 3 2 kV d c current input 3 2 kV d c power supply 2 1 kV d c Electromagnetic compatibility noise immunity acc to EN 61000 6 2 noise emission acc to EN 61000 6 4 Safety requirements acc to EN 61010 1 isolation between circuits basic installation category Ill up to 300 Il for 300 600 pollution grade 2 15 maximal phase to earth working voltage for the supply circuit 300 V for the measuring input 600 cat II 300 V cat III alti
5. d and software revision Then dis plays default value voltage One can change displayed value by pressing button If button is pressed longer than 3 seconds text 5 is displayed and measured value is remembered as a default value After switching on power supply the meter displays its default value If voltage is in measured range then frequency is taken from voltage otherwise frequency is taken from current 12 The appearance of following symbols on the display means A Measured value exceeds the upper value of the indication range Measured value exceeds the lower value of the indication range ErtA Loss of meter calibration values In such a Case one must contact the service workshop 6 TECHNICAL DATA Measuring range INPUTS Measuring range of voltage U 0 0 01 1 2 Un input resistance gt 3 MQ Measuring range of current I 0 0 01 1 2 In Voltage frequency measurement 0 2 0 500 0 Hz Current frequency measurement 0 45 0 500 0 Hz Active power measurement 454 31 5 31 50 45 36 kW at frequency 45 65 Hz Sustained overload 120 Un 120 In 13 Short duration overload 1 s input voltage 2 Un lt 1000 V current input 10 In Basic error voltage 0 5 of the range in frequency range 40 500 Hz current 0 5 of the range in frequency range 45 65 Hz frequency 0 02 of the range active power 1 of the range in frequency r
6. meter must be installed according to the regulation and instructions given in this User s Manual Ensure proper handling and avoid mechanical stress Do not bend any components and do not change any insu lation distances Do not touch any electronic components and contacts Meters may contain electrostatic sensitive components which can easily be damaged by inappropriate handling Do not damage or destroy any electrical components since this might endanger your health Wire cross sections must be chosen such to assure the protection of the cable in case of a short circuit by means of an installation cut off Requirements concerning the mains supply are described in the EN 61010 1 standard A cut out or a circuit breaker should be installed in the buil ding and be easily accessible for the operator 4 Electrical connection Before switching the meter on one must check the correct ness of connection to the mains supply In case of the protection terminal connection with a sepa rate lead one must remember to connect it before the con nection of the meter to the mains When working on live meters the applicable national regu lations for the prevention of accidents must be observed The electrical installation must be carried out according to the appropriate regulations cable cross sections fuses PE connection Additional information can be obtained from the user s manual The documentation contains information about
7. s marked by these sym bols can occasion severe injuries of the personnel and the damage of the module CAUTION Designates a general useful note If you observe it handling of the meter is made easier One must take note of this when the meter is working inconsistently to the expec tations Possible consequences if disregarded In the security scope the meter fulfills the requirements of the EEC Low Voltage Directive EN 61010 1 issued by CENELEC Remarks concerning the operator safety 1 General 2 The N27D meter is designed to be installed in measuring systems Non authorized removal of the required housing inappro priate use incorrect installation or operation creates the risk of injury to personnel or damage to equipment For more detailed information please study the user s manual All operations concerning transport installation and com missioning as well as maintenance must be carried out by qualified skilled personnel and national regulations for the prevention of accidents must be observed According to this basic safety information qualified skilled personnel are persons who are familiar with the installation assembly commissioning and operation of the product and who have qualifications necessary for their occupation Transport storage Please observe the notes on transport storage and appro priate handling Observe the climatic conditions given in Technical Data 3 Installation The
8. tude above sea level lt 2000 m 7 ORDER CODES Version standard custom made Language Polish English other Acceptance tests without extra quality inspection requirements with an extra quality inspection certificate acc to customer s request only after agreeing with the manufacturer Example of order The code N27D 00 E 0 means 00 standard version E English language 0 without extra quality inspection requirements 16 17 LUMEL LUMEL S A ul Stubicka 1 65 127 Zielona Gora Poland Tel 48 68 45 75 100 Fax 48 68 45 75 508 e mail lumel lumel com pl http www lumel com pl Export Department Tel 48 68 45 75 139 305 321 368 Fax 48 68 32 54 091 e mail export lumel com pl N27D 09
Download Pdf Manuals
Related Search