Monitoring Technology

Transcription

1 Monioring Technology IT ine Monior IR 9112/710, IS 9112/711, IS 9112/712 varimeer Circui diagram IR 9112/710 IS 9112/712 According o IEC/EN , DIN VDE , IEC/EN For rooms used for medical purposes according o IEC , DIN VDE Consising of * Curren monioring sysem - Measuring ranges of 5 50 A (wih exernal converer 50 / 5 A) - Adjusable from I N - Hyseresis fixed a approx. 4% - Adjusable swiching delay - ED indicaors for correc saus and overcurren - 2 changeover conacs * Temperaure monioring sysem - Deecion of emperaure overrange - Deeecion of wire breakage in he sensor circui - Inpu P1 / P2 for hermisors - ED for auxiliary volage and conac posiion - 2 changeover conacs * Insulaion monioring - for sraigh hree-phase and A.C. power sysems wih V and Hz - Fixed alarm hreshold for ground faul R A of 50 kω - Wih line breakage monioring funcion of he measuring circui - Opionally, programmable for soring or non-soring of errors - Wih rese and es key - Addiional exernal rese and es keys can be conneced - ED indicaors for operabiliy, insulaion error, and inerrupion of measuring circui - 2 changeover conacs wih ED chain do display he momenary saus of insulaion and/or connecion of he es and indicaion panel UP 5862, as opion (widh 140 mm) 105 mm widh Approvals and Marking A1 P1 P2 i k T1 T2 A2 ' ' Applicaion A1 P A1 i A1 ' A2 P A2 k A2 ' To monior he IT sysem of rooms used for medical purposes according o VDE Overcurren and emperaure conrol of he IT isolaing ransformers Insulaion monioring of he IT power sysem M8686_b IR 9112/710 Circui diagram A1 P1 P2 i k ' T1 T2 A1 P1 P2 i k ' T1 T2 A2 ' A2 ' A1 P A1 i A1 ' A1 P A1 i A1 ' A2 P A2 k A2 ' A2 P A2 k A2 ' X IS 9112/711 M9097 IS 9112/ X2 X5 M9096 All daa in his lis are in correspondence wih he echnical equipmen used a he ime of his version. We reserve he righ o implemen echnical improvemens and changes a any ime. 1 IR 9112/710, IS 9112/711, IS 9112/712 / e

2 Funcion diagram emperaure / curren monioring sysem Funcion diagram insulaion monioring sysem U H U H R _ 3,2k _ 1,8k P1/P2 R E Ground Erdschluß faul R A Inerrupion of measuring Unerbrechung circui Messkreis Overemperaure/ Überemperaur/ sensor Fühlerbruch breakage Spannungsausfall Volage failure M8700_a ein ED "MK" on ein ED "A" on ohne Fehlerspeicherung (Brücke T1-T2) No error sorage (jumper T1-T2) U H I I Hys. I N Resease key T ein ED "MK" on mi Fehlerspeicherung (ohne Brücke T1-T2) Wih error sorage (no jumper T1-T2) 31/41 34/44 32/42 v ED "A" on ein M8698_a ED ED green grün on off ED I red ro on off M8699_a Design and Mehod of Funcioning Curren monioring sysem The curren monioring pah (i-k) of he IT line monior is designed for connecion of an exernal curren ransformer 50 / 50 A. This provides for overload monioring of all isolaion ransformers (3, 15 o 8 kva) for he IT power sysem in medical applicaions by seing he pickup value accordingly. If he curren value exceeds he se pickup value, he red ED I is illuminaed, and boh respecive changeover conacs ( , ) fall back ino normal posiion afer he se delay ime v ( s); he green ED sops lighing. Temperaure monioring sysem To monior he ransformer emperaure, emperaure sensors (1 6 C hermisors according o DIN / or NC conacs) are conneced o he erminals P1 - P2. When he pick-up value of one of he sensors is exceeded or he sensor circui is inerruped, boh respecive changeover conacs ( , ) fall back ino normal posiion, he red ED is illuminaed. Insulaion monioring sysem The erminals / and / are conneced o he respecive lines of he IT power sysem. If he IT ransformer has a cenre apping or a sar poin, he erminals / are preferably conneced o his poin. The erminals and should be conneced wih separae lines and possibly no in he same place (a leas no a he same erminal) of he IT power sysem o allow for safe recogniion of an inerrupion in he measuring circle. The insulaion resisance of he IT power sysem agains ground is measured beween he erminals / and /. If he ground faul resisance R E falls below he pickup value R A of he line isolaion monior, he red ED A will be illuminaed, and he wo respecive changeover conacs ( , ) fall back ino normal posiion. Design and Mehod of Funcioning On inerrupion of he measuring circui, he wo respecive changeover conacs will likewise fall back ino normal posiion, and he red ED MK will be illuminaed. Afer correcion of he error (R E R A, measuring circui conneced) and jumpered erminals T1 T2 (= error no sored), he changeover conacs will change ino work posiion (correc saus), and he red error EDs will sop lighing. If you wish o sore errors, remove he jumper T1 T2. In his way, also shor-lived errors as e.g. a emporary deerioraion of insulaion, for example by ouching of a line or unreliable conac making in he measuring circui may rigger a sored alarm The oupu conacs remain open also afer he error has been correced. The ype of he error can be seen in rerospec from he illuminaed error ED A or MK. The error memory can be rese by pressing he inernal or exernal rese key, or by swiching off he auxiliary volage. By pressing he inernal or exernal Tes key, a deerioraion of insulaion is simulaed in he measuring circui (= R E approx. 40 kω); hus, he correc response of he isolaion monior is checked. The varian IR9112/711 comprises an 11-sage ED chain for indicaion of he curren insulaion resisance of he power sysem. By means of differenly colored EDs, he insulaion saus in he range of 20 kω... 1 MΩ is indicaed. In his way, deerioraion of insulaion can be deeced even before an alarm is riggered. The varian IR9112/712 includes a 11 sep ED indicaor o monior he acual sae of he insulaion, an addiional power supply and relays o connec a es and indicaor uni UP The widh is 70 mm. 2 IR 9112/710, IS 9112/711, IS 9112/712 / e

3 Noes General Before checking insulaion and volage of he sysem, disconnec he monioring device IR 9112 from he power source. Curren monioring sysem Recommended seing values of he pickup value I in relaion o he IT ransformer Transformer (kva) Single-phase 14 A 18 A 22 A 28 A 35 A 3-phase 8 A 10 A 13 A 16 A 20 A Insulaion monioring sysem The isolaion monior is designed o monior sraigh AC power sysems. Any inerfering direc volages geing ino he measuring circui will no damage he device bu will falsify he condiions in he measuring circui while hey are affecing i. As insulaion measuring is performed via direc curren, i will no be falsified by sysem capaciances agains proecive ground C E. However, he pickup ime may be longer in case of insulaion failure, in he order of he ime consan R E imes C E. In every IT circui, only one isolaion monior mus be conneced. Indicaors Curren monioring sysem Green ED Red ED I is illuminaed when he curren is in correc sae (correc saus) is illuminaed when overcurren is presen Temperaure monioring sysem Green ED is illuminaed when auxiliary volage has been applied Red ED is illuminaed when overemperaure or inerrupion in he sensor circui is presen Insulaion monioring sysem Green ED ON Red ED A Red ED MK Technical Daa Curren measuring circui is illuminaed when auxiliary volage has been applied (operabiliy) is illuminaed when an insulaion failure is presen, R E < R A (value has fallen below alarm level) is illuminaed when one of he lines of he measuring circui is inerruped (,,, ) Pickup value Adjusable from 5 50 A wih exernal converer 50 / 5 A Hyseresis approx. 4% Nominal frequency of he measuring curren 50 / 60 Hz Temperaure effec 0.05 % / K Tiime delay v Adjusable from s Temperaure measuring circui Temperaure sensor C sensor according o DIN 44081/44082 Number of sensors sensors in series Pickup value kω Reseing value kω Measuring circui load < 5 mw (wih R = 1.5 kω) Inerrupion in he measuring circui 3.8 kω Measuring volage 2 V (wih R = 1.5 kω) Measuring curren 1 ma (wih R = 1.5 kω) Volage in case of Sensor breakage DC approx. 9 V Curren wih shored sensor circui DC approx. 1.1 ma Technical Daa Insulaion measuring circui Nominal volage U N AC V Volage range U N Frequency range Hz Alarm value R A IR kω non-adjusable) IS 9112 adjusable, kω Inernal esing resisor corresponds o an R E of approx. 40 kω AC inernal resisance 250 kω DC inernal resisance 250 kω Measuring volage approx. DC 15 V (generaed inernally) Max. measuring curren (R E = 0) < 50 µa Max. permissible inerfering direc volage DC 500 V Operae delay wih R A = 50 kω, CE = 1 µf R E of o 0.9 R A < 1.3 s R E of o 0 kw < 0.7 s Hyseresis approx. 15 % Auxiliary circui Auxiliary volage U H Volage range Nominal consumpion Nominal frequency Oupu Number of conacs provided for emperaure monioring for curren monioring for insulaion monioring AC 230 V U H 7 VA 50 / 60 Hz 2 changeover conacs (conacs , ) 2 changeover conacs (conacs , ) 2 changeover conacs (conacs , ) Thermal curren I h 5 A Swiching capaciy acc. o AC 15 NO conac 3 A / AC 230 V IEC/EN NC conac 1 A / AC 230 V IEC/EN Conac life acc. o AC 15 wih 1 A, AC 230V 3 x 105 opera. cycles IEC/EN Shor circui srengh max. fuse raing 4 A g IEC/EN Mechanical life 30 x 10 6 operaing cycles General Daa Nominal operaion Permanen operaion Temperaure range C Clearance and creepage disances raed impuls volage/ polluion degree 4 kv / 2 IEC EMC Saic discharge (ESD) 8 kv (air discharge) IEC/EN HF irradiaion 10 V / m IEC/EN Fas ransiens 4 kv IEC/EN Surges beween supply lines 1 kv IEC/EN beween wire and ground 2 kv IEC/EN Radio inerference suppression imi value class B EN Degree of proecion Housing IP 40 IEC/EN Terminals IP 20 IEC/EN Housing Thermoplas wih V0 behavior according o U Subjec 94 3 IR 9112/710, IS 9112/711, IS 9112/712 / e

4 Technical Daa Vibraion resisance Ampliude 0.35 mm Frequency Hz IEC/EN Climae resisance 20 / 060 / 04 IEC/EN Terminal designaion EN Wire connecion 2 x 2.5 mm 2 massive, or 2 x 1.5 mm 2 sranded wire wih sleeve DIN /-2/-3 Wire fixing Screw erminals wih self-lifing clamping piece IEC/EN Mouning DIN rail IEC/EN Ne weigh IR 9112/710 IS 9112/711 IS 9112/ g ca. 430 g ca. 510 g ca. 570 g Accessories Tes and indicaor panel UP 5862 For insulaion moniors in medically used rooms according o IEC , DIN VDE o moun in flush device boxes ø 60 mm, 35 mm deep; es buon o check he funcion of he device wih green ED o indicae operaion rese buon for audible alarm wih yellow ED o monior insulaion failure Dimensions Widh x heigh x deph R 9112/710 IS 9112/711, IS 9112/ x 90 x 59 mm 140 x 90 x 59 mm Dimensions (widh x heigh) 80 x 80 mm Sandard ype IR 9112/710 AC 230 V Aricle number Oupu 2 changeover conacs each Auxiliary volage U H AC 230 V Overall widh 105 mm Varians IS 9112/711 IS 9112/712 Ordering example wih 11-sage ED chain for indicaion of he curren insulaion value wih 11-sage ED chain for indicaion of he curren insulaion value, and connecion faciliy for a es and indicaor uni UP 5862 Flush mouning ki Order reference KU / For universal use wih I-series devices of 17,5 o 105 mm widh easy mouning IR 9112/710 AC 230 V Auxiliary volage Type Mouning ki for surface mouning KU Device of I-series Widh (mm) Order reference IK 17.5 KU /56763 I 35.0 KU /56764 IN 52.5 KU /56765 IP 70.0 KU /56766 IR KU / IR 9112/710, IS 9112/711, IS 9112/712 / e

5 Connecion example isolaion ransformer N 3, kVA 1) curren ransformer 2,5VA AC230V 1 2 exernal es P1 P2 i k A1 A2 ' ' ransformer conacor insulaion monior IR9112/710, IS9112/711 T1 T2 exernal rese jumper = auomaic rese overemperaure overcurren R E <R A / inerrupion of measuring circui insulaion failure M9291 1) if no middle apping is available he connecion is made beween /' and 1 or 2. N isolaion ransformer 3, kVA 1) curren ransformer 2,5VA AC230V 1 2 exernal es P1 P2 i k A1 A2 ' ' ransformer conacor insulaion monior IS9112/712 T1 T2 jumper = auomaic rese exernal rese X1 X2 X5 overemperaure overcurren 1) if no middle apping is available he connecion is made beween /' and 1 or 2. R E <R A / inerrupion of measuring circui insulaion failure M9290 X1 X2 X5 1 2 UP5862 es and indicaor panel 5 IR 9112/710, IS 9112/711, IS 9112/712 / e

6 E. DOD & SÖHNE KG D Furwangen PO Box 1251 Telephone (+49) / Telefax (+49) / dold-relays@dold.com inerne hp// 6 IR 9112/710, IS 9112/711, IS 9112/712 / e