1X30 Trip Circuit Supervision Relay

Transcription

1 echnical ulletin ip Circuit Supervision Relay Features Monitors trip circuit supply Monitors trip circuit wiring integrity Monitors circuit breaker operate coil continuity Monitors circuit breaker 5a and 5b auxiliary switches in open and closed positions >00ms time delay to avoid nuisance alarms during normal C operation Compact design Simple through hole panel mount De-mountable terminal blocks complete with locking screws Extra large Remote indication via one output contact Custom front panel label Cost effective Range of supervision voltages Front view Rear view pplication he ip Circuit Supervision relay has been designed as a simple and cost effective device for monitoring the condition of the trip circuit supply, trip circuit wiring and circuit breaker operate coil continuity. Local visual indication of fuse or circuit failure is provided by a large ultra high intensity. Remote indication is made possible through a single alarm relay output contact. he relay is characterized by it s compact size, plug in connection base and simple panel mounting configuration. number of models are available to cover a range of sensing circuits. Operation Made in ustralia he relay is comprised of two electromechanical output relays which are wired across the protection trip contact and the circuit breaker a and b pallet switches. his results in the alarm relay being normally energized provided the trip supply, the trip circuit and the circuit breaker coil are all healthy. Failure of the trip supply, the circuit under supervision or the C coil will cause the alarm relay to be de-energized providing a remote warning signal and the front panel alarm changing state. he relay incorporates an electronic time delay to avoid nuisance alarm signals during normal operation of the circuit breaker between the open and closed state. n important characteristic of the design is the low level of current required to flow through the C coil for correct operation of the supervision scheme. constant low supervision current is maintained irrespective of the C open or closed position. his results in low power dissipation in the circuit and the C coil which avoids the possibility of nuisance tripping. wo supervision schemes are available to provide a range of and visual alarm and output contact options. he relay is designed for flush mounting utilizing the single 5mm mounting point which also houses the indicator. Electrical termination is made via ten (0) screw terminals on the rear of the case. his terminal block is of a plug in type further simplifying installation. Due to RMS continuous product improvement policy this information is subject to change without notice. /Iss. G//08/ - /

2 echnical Data C RIP - reaker Opening SUPERVISED CIRCUIS he trip supply, circuit and C coil are continuously monitored under all conditions as depicted in the following diagrams: he thick blue lines depicted below identify the supervised trip circuit and the red arrows the path of the supervision current under different conditions. SUPERVISION WIH C CLOSED Loss of the DC trip supply or circuit continuity through the indicated current path for >00ms will cause the normally energised fail alarm relay to drop out. SUPERVISION DURING C OPERION 00ms time delay holds in alarm contact during C operation. he will remain off while the protection trip contact closed. SUPERVISION WIH C OPEN lternate supervision current path when the C is open. Note: * >00ms delay * ip Coil he protection contact may be a latching type lockout relay. In this case supervision current will not flow through supervision element. Supervision element will continue to function and maintain the normally energised fail alarm contact to remain picked up. 5 ip Coil 5 RNSIEN CONDIION (Momentary flashing of the will occur during operation of the C) ip Coil 5 SUPERVISION SCHEMES wo different supervision schemes are available as described on page. VOLGE OPERING RNGE 70% to 5% of nominal voltage. DROP OU VOLGE Drop out between 5 and 0% of nominal rated operate voltage. SUPERVISION OPERING CURREN he circuit design is optimized to minimize the supervision current in the trip coil to avoid the possibility of nuisance tripping. Supervision Circuit (C open and closed) Nominal Resistance (ohms) supply Supervision ip coil (Maximum) * current V DC m V DC,600 0m 8V DC, m 0V DC, m 5V DC 5, m Note: * he maximum recommended C trip coil resistance stated above equates to a minimum C operating power of 0W. URDEN otal power dissipated in the supervision and alarm circuits at nominal operating voltage is tabulated below: Red versions: Nominal Normal conditions supply C Closed C Open V DC.8W.W V DC.W.W 8V DC.0W.5W 0V DC.W 0.9W 5V DC.W.0W Green versions: Nominal Normal conditions supply C Closed C Open V DC.W.7W V DC.7W.W 8V DC.W.9W 0V DC.W.8W 5V DC.W.0W VISUL INDICOR Panel mounted extra large red, yellow or green. INSULION WIHSND in accordance with IEC 55-5: KV RMS and./50 5KV impulse between input and output. LRM DELY >00ms at nominal operating voltage. OUPU RELY CONC CONFIGURION contact as indicated in supervision scheme diagrams KV isolation across open contacts OUPU CONC RING Make and carry 0 C or DC (Limits L/R=0ms and 00V max.) for 0.s 0 C or DC (Limits L/R=0ms and 00V max.) for 0.5s 5 C or DC continuously reak (Limits 5 and 00V max.),50v C resistive 50V at 0.PF C inductive 75W DC resistive 0W DC inductive L/R = 0ms 50W DC inductive L/R = 0ms Minimum recommended load 0.5W, 0m or 5V minimum. Due to RMS continuous product improvement policy this information is subject to change without notice. /Iss. G//08/ - /

3 Supervision Schemes SCHEME Red alarm and C/O alarm contact In this scheme a C/O alarm contact and red alarm is provided. he alarm contact remains picked up under normal healthy conditions and during switching transients. Under abnormal conditions the alarm contact will always drop out to signal a trip circuit failure. he red alarm will also become illuminated provided the trip supply has not been lost to terminal 0 on the relay. he trip supply may be wired directly to terminal 0. his will ensure that the red alarm will still illuminate even for loss of the DC trip supply to the protection trip contact. yellow alarm may be specified in place of the red. SCHEME Green healthy and C/O alarm contact In this scheme a C/O alarm contact and green healthy is provided. he alarm contact remains picked up and the green healthy illuminated under normal healthy conditions and during switching transients. Under abnormal conditions the alarm contact will always drop out to signal a trip circuit failure and the green healthy extinguished. ip Coil 5 ip Coil 5 0 RED 5 GREEN 5 RL RL Contacts shown with C Open & circuit de-energised. Red alarm illuminated he thick blue lines depicted identify the continuously supervised trip circuit (C open or closed). Connect terminal 0 to terminal OR terminal 0 direct to the protection DC supply but NO both. 9 0 Contacts shown with C Open & circuit de-energised. Green healthy extinguished. he thick blue lines depicted identify the continuously supervised trip circuit (C open or closed). Due to RMS continuous product improvement policy this information is subject to change without notice. /Iss. G//08/ - /

4 Ordering Information MOUNING Panel mounting through indicator assembly. Optional custom label fits between panel and mounting nut. CSE SYLE Double insulated high impact plastic case moulded in polystyrol. ERMINL WIRING x 5 way screw compression terminal blocks mounted in two plugin bases for easy wiring and installation. Each terminal block is polarised to ensure that it cannot be plugged into the wrong terminal socket. Screws to retail the plug-in terminal blocks are provided. erminal 9 is not used to allow adequate high voltage isolation between terminals 8 and 0. Generate the required ordering code as follows: e.g. -D - SUPERVISION VOLGE V DC D 0V DC V DC E 5V DC C 50V DC SUPERVISION SCHEME C Red alarm illuminated under fault conditions Green healthy illuminated under normal conditions Yellow alarm illuminated under fault conditions CUSOM FRON PNEL LEL Not required Required dvise x 0 characters (Maximum) of custom text for custom front panel label with order. Rear terminal layout EMPERURE RNGE Operating: Storage: -0 to +55 o C -5 to +75 o C Maximum X 0 characters CSE DIMENSIONS PNEL MOUNING HOLE DIMEER "JUMO" HIGH INENSIY NYLON REINING NU PNEL HICKNESS to mm Due to RMS continuous product improvement policy this information is subject to change without notice. /Iss. G//08/ - /

5 ustralian Content Unless otherwise stated the product(s) quoted are manufactured by RMS at our production facility in Melbourne ustralia. pproximately 60% of our sales volume is derived from equipment manufactured in house with a local content close to 80%. Imported components such as semi-conductors are sourced from local suppliers & preference is given for reasonable stock holding to support our build requirements. Quality ssurance RMS holds NCSI (N Certification Services International), registration number 6869 for the certification of a quality assurance system to S/NZS ISO Quality plans for all products involve 00% inspection and testing carried out before despatch. Further details on specific test plans, quality policy & procedures may be found in section of the RMS product catalogue. Product Packaging Protection relays are supplied in secure individual packing cardboard boxes with moulded styrene inserts suitable for recycling. Each product & packing box is labeled with the product part number, customer name & order details. Design References he products & components produced by RMS are based on many years of field experience since Relays Pty Ltd was formed in 955. large population of equipment is in service throughout ustralia, New Zealand, South frica & South East sia attesting to this fact. Specific product & customer reference sites may be provided on application. Product Warranty ll utility grade protection & auxiliary relay products, unless otherwise stated, are warranted for a period of months from shipment for materials & labour on a return to factory basis. Repair of products damaged through poor application or circumstances outside the product ratings will be carried out at the customer s expense. Standard Conditions of Sale Unless otherwise agreed RMS Standard erms & Conditions (QF 907) shall apply to all sales. hese are available on request or from our web site. Relay Monitoring Systems Pty Ltd 6 nzed Court, Mulgrave, Victoria 70, USRLI el: Fax: rms@rmspl.com.au Web: 0 Relay Monitoring Systems Pty Ltd Due to RMS continuous product improvement policy this information is subject to change without notice.