Medium Voltage Distribution Catalogue | 2012 PM6 range Disconnector switch up to 36 kV PM6 range Table of contents General description 2 General characteristics Breaking device Manual control Electrical characteristics 3 3 5 6 Advantages 7 Options Control unit Sectionalizer function Voltage transformer Current transformer Lightning arresters Manometer or pressure switch Architecture and Scada L500 Network remote control The right choice References Environment General dimensions AMTED398031EN.indd 8 8 11 12 12 12 12 13 13 14 14 14 Versions S3 (24 kV) / S4 (36 kV) Versions S2D (24 kV) / S3D (36 kV) 15 15 16 MV devices 17 Order form 18 1 General description DE58185 PM6 range PM6 In industrialized countries, where there is a high level of electrification, not only is poor electrical power supply quality is not accepted by consumers, but in many countries over recent years, compulsory regulatory standards have been drawn up in order to guarantee the quality of electrical service that is provided. In response to this situation, electrical utilities companies are requiring new products and a high reliability and easily managed service focused on reducing: bb The number of power outages bb The duration of the outages bb The increase in affected zones. PM6 PM6 PM6 PM6 We can implement a certain number of actions to reduce the above mentioned points, such as: bb Using underground power lines bb Reducing the length of lines bb Good maintenance of networks and their environment bb Selecting and applying suitable devices on MV lines. PM6 is Schneider Electric's best solution: installed on its customers’ MV lines, this equipment enables them to achieve their target objectives to improve network management and automation and thus increase the quality of service provided to customers. Presentation PM6 is an SF6 load break switch-disconnector designed to be mounted on all types of poles. It can be installed in rural and semi-urban overhead distribution networks, up to 36 kV. Although it is specially designed for remote control functions, it can also be controlled locally in manual mode. The PM6 range also offers a full manual solution which is very competitively priced. Reference standards PE56862 PM6 is manufactured in conformity with the following international standards: bb European: IEC 60265-1, IEC 62271-102, IEC 62271-1, IEC 60529, IEC 62271-200, IEC 60815. Moreover, the equipment production process is carried out in compliance with an ISO 9001 certified quality program. 2 AMTED398031EN.indd General characteristics PM6 range DE58187 Breaking device The breaking device is made up of an external stainless steel enclosure, without an additional protective coatings, to give a smooth, clean, self-cleaning and aerated surface that is highly resistant to corrosion. 8 6 3 The enclosure with the SF6 has very compact dimensions and only the parts specifically required for breaking are inside the enclosure to limit the gas volume. 1 7 2 6 The SF6 tank is connected to earth and it is therefore impossible for a dangerous leakage current to pass between the terminals on one side and the terminals on the other when the device is in the open position; in addition, additional disconnectors are not necessary to guarantee the isolation distance. This feature is what gives the equipment its characteristics as a disconnector switch. All sensitive components, which may need to be fully dismantled in the event of an external incident following transient network disturbances (ferroresonance, circuit breaker, overheating of components, etc.), are placed outside of the SF6 enclosure, e.g. motors, voltage transformer, current sensors, electronic components, etc. 4 9 5 The disconnector switch breaking chambers are inside the SF6 enclosure. 11 The compact volume and the low internal SF6 pressure (0.3 bars at 20°C), considerably reduce the risk of any gas leakage. The enclosure is sealed for life and meets “pressurized sealed system” criteria in conformity with standard IEC 62271-200, which is why it is not necessary to check the internal pressure of the equipment. During extinction of the electrical arc, the overpressure is basically confined to the volume between the contacts. This overpressure is very low and even if it accidentally increases, it would be limited to 2.5 absolute bars due to the presence of an overpressure membrane. Versions S3 / S4 DE58188 There is very little energy dissipated in the arc due to the qualities of the gas, the short arc length and the short arc duration; even in frequent operation, the device is capable of breaking all load currents for 30 years without needing any servicing of the active parts. 8 3 1 6 10 10 2 7 11 11 Components: 1 SF6 switch-disconnector 2 Electrical control mechanism 3 MV line connections 4 Manual control transmission 5 Manual control mechanism 6 Support cradle 9 7 Lightning arresters 8 Voltage transformer 9 Control unit 10 Lever for control rod Versions S2D / S3D AMTED398031EN.indd 11 Mechanical latching 3 General characteristics PM6 range Breaking device PE56863 Electrical command and operating mechanism The electrical command and operating mechanisms are located inside an independent enclosure, combined with the disconnector switch breaking device. The basic mechanism involves an opening-closing system (passing through a neutral point), activated by a spring for switching operations to take place independently of the operator switching speed (Tumbler system). DE58189EN With all these parts are inside an enclosure auxiliary, we can guarantee excellent behavior of our equipment in bad weather, as proven in the following tests: bb Resistance to salt mist for 1000 h bb Cyclic abrupt temperature variations testing (from -10°C to +70°C). Indicator black/open Fixed contact Moving contact Opening contacts Main shaft Electrical operating mechanism control shaft The electrical control mechanism comprises a 48 V DC (24 V DC optional) motor for the electrical opening and closing operations, operated either from the control unit or from a remote control center. A device directly linked to the disconnector switch contact position (“open” or “closed”) makes sure it is in the right position. This device, and the position indicator that is easily visible from the ground, comply with the design of the position instruction devices described in the IEC 62271-102 standard. PE56864 MV connections The PM6 disconnector switch is equipped with 6 silicone connectors, enabling connection of the MV line using a non-insulated cable. Creepage: Level IV according to standard IEC60815. According to the type of installation, PM6 can optionally be supplied with plug-in terminals for insulated cable. DE58190EN Support cradle and anchoring system Indicator white/closed The disconnector switch and control mechanism are mounted on the support cradle. This unit is then fixed at the desired height using the anchoring system. Closed contacts 4 AMTED398031EN.indd PM6 range General characteristics PE56860 Manual control According to requirements and market preferences, Schneider Electric can offer two variants, according to the type of manual control required. The arrangement of the switch and the fixing of the equipment to the pole is consequently modified. The sales reference number for the equipment varies according to the manual control mechanism chosen. 1 - Manual operation via a transmission system bb Reference 24 kV: PM6-S3 bb Reference 36 kV: PM6-S4. PE56845EN The manual control system comprises a transmission shaft going to the base of the pole and an operating lever which can be mechanically padlocked in one of the three positions: LOCKED OPEN - REMOTE CONTROL - LOCKED CLOSED. The padlock is not supplied. This type of manual operation offers the advantages of being quick and easy to activate in an emergency and of being easier and safer for the operator when carrying out switching operations. PE56861 Versions S3 / S4 2 - Manual operation via a hookstick system bb Reference 24 kV: PM6-S2D bb Reference 36 kV: PM6-S3D. The equipment is operated using a hookstick system. Mechanical locking to block the OPEN - CLOSED positions is optional. The main advantages of this type of operating mechanism for the equipment can be summarized in terms of the lack of any need for manual control settings when being installed and the total impossibility of the equipment being controlled by someone from outside of the company. Versions S2D / S3D AMTED398031EN.indd Comment: whatever manual control system is chosen, the breaking device and the accessories required for remote control of the device are identical and the electrical and functional characteristics are therefore the same for the whole of the PM6 range. 5 General characteristics PM6 range Electrical characteristics According to the standards IEC - CAT. E3M2 Version Rated voltage (kV rms) Rated current in continuous (A) Insulation level kV rms, 50 Hz/1 min Impulse wave kV, 1.2/50 µs Breaking capacity (A) Making capacity Short time withstand current Other characteristics Temperature (°C) Mechanical strength Protection index No. of short-circuit making operations (8 kA) Internal arc Creepage distance (mm/kV) To earth Between poles To earth Between poles Mainly active load Close loop Cable charging Line charging kA (peak value) kA (rms value) kA (peak value) S3/S2D 24 kV 400 to 630 A 50 kV 60 kV 125 kV 145 kV 400 A to 630 A 400 A to 630 A 10 A 10 A 31.5 kA 12.5 kA/1 s 31.5 kA S4/S3D 36 kV 400 to 630 A 70 kV 80 kV 170 kV 195 kV 400 A to 630 A 400 A to 630 A 20 A 10 A 40 kA 16 kA/3 s 40 kA Maximum Minimum AC cycles Switch enclosure Motor compartment kA (rms value) / 1 s - +50°C -25°C 5000 IP67 IP54 150 10 kA 31 mm/kV +50°C -50°C 5000 IP65 IP54 150 10 kA 31 mm/kV DE58191 The electrical endurance is represented on these diagrams which give us a sample of the number of switching operations that the PM6 can carry out. 10000 5000 1000 100 100 A 200 A 400 A 630 A 24 kV / 400 A 24 kV / 630 A 36 kV / 630 A 6 AMTED398031EN.indd PM6 range Advantages PE56865 The PM6 offers many benefits for your MV lines: Low purchase costs Since this is a highly optimized equipment, the manual disconnector switch option is highly competitive. In addition, the difference between a PM6 equipped with manual control or with a manual-electrical control unit is minimal (less than the cost of this operation in the future: buying the motor, disconnecting the voltage, guarantees for the installation, etc.). Therefore the customer can install equipment on his network that will be easy to control remotely. Low design costs Since the PM6 is a disconnector switch, it is not necessary to use external disconnectors (air insulated) in order to ensure the disconnection conditions on the MV line, if the equipment is in the open position. This characteristic represents a major cost saving for utilities companies both in terms of installation and maintenance costs for these external disconnectors. Low installation costs All equipment that is normally installed outdoors can be assembled on the same structure: voltage transformers, lightning arresters, etc. This allows the installation time to be reduced. Low maintenance costs Since all of the sensitive parts (breaking device, springs, motors, etc.) are contained in stainless steel enclosures, the equipment can be installed in specially harsh environments without any need for any maintenance. PM6 is maintenance free for 30 years under normal operating conditions. Easy upgradability and parts replacement Should it be necessary to change an accessory: motor, voltage transformer, current transformer, etc., the operation can be carried out without dismantling the equipment. For the control unit, the electronic modules making it up are easily dismantled circuit boards, all of which are very easy to replace. This enables the repair times to be reduced as well as the down time of the electricity service. AMTED398031EN.indd 7 Options PM6 range Control unit PE56848 Description The flexibility of the PM6 unit allows our disconnector switch to be adapted to all types of control unit if the equipment is to be used in remote control mode. However, the PM6 has a dedicated control unit, the Easergy T200 P, specially designed by Schneider Electric to carry out these functions. Designed to be pole-mounted outdoors, it is a stainless steel casing, with all components manufactured in conformity with EMC standards. The unit comprises the following components: bb A cradle for all the electronic modules: vv switch connection module vv CPU and the local control indication module vv RTU communication module vv battery power supply-charger module. bb A battery bb Free space to install a radio or a modem. The main advantages of our control unit are: bb Easy to install and in the case of an incident, the components are easy to replace local PM6 management from the control unit bb Open-ended to all types of protocols and communication systems bb Capable of executing automatic control functions. Disconnector function bb Currents, voltages, powers, energies and frequency power factor measurements bb Remote operation and maintenance by Web integrated server. Easergy T200 P PE56866EN Operating principle 8 AMTED398031EN.indd PM6 range Options Control unit Characteristics Capacity Controllable switch 1 channel / 2 channels (option) Switch information Open / closed orders Additional information “Latched” open / closed positions Automatic control SEC - sectionalizer Automatic control management ES/HS order, ES/SH “Latched” position Power supply Alternating voltage Characteristics 90 to 270 V AC, 50 Hz, 120 VA max. Optional: a tranformer of 43 V AC and 57 V AC Isolation 10 kV Power supply Telecommunication 12 V (1 A permanent, 7 A max.) Motorization 48 V DC (24 V DC optional) Battery Type Sealed lead Capacity 12 V-38 Ah Back-up time at 20°C 16 h + 10 cycles O/C Useful life at 20°C 10 years Monitoring Deep discharge, periodic tests Characteristics Dielectric AC supply input IEC 255-4 Toroid input IEC 255-4 Isolation (50 Hz / 1 min): 10 kV Impulse (1.2 / 50 µs): 20 kV Isolation (50 Hz / 1 min): 2 kV Impulse (1.2 / 50 µs): 5 kV Electromagnetic Fast transients IEC 1000-4-4 Level 4: Electrostatic discharges IEC 1000-4-2 4 kV (sectors and sensors), 2 kV (other circuits) Level 3: 6 kV on contact, 8 kV in the air Radiated electromagnetic fields IEC 1000-4-3 80 MHz - 1 GHz - 30 V/m MC radio frequency IEC 1000-4-6 0.15 MHz to 80 MHz - 10 V rms Dampened oscillating waves IEC 1000-4-12 2.5 kV shared mode, 1 kV differential mode Impulse magnetic field IEC 1000-4-9 1000 A/m peak Surges wave IEC 1000-4-5 Coupling between 1 kV line cables, between cables and earth 2 kV Magnetic field 50 Hz IEC 1000-4-8 30 A/m permanent at 300 A/m 1 to 3 s Climatic Temperature -25°C to +55°C Relative humidity IEC 68-2-3 Below 95% at 40°C Salt mist IEC 68-2-11 336 h Storage temperature IEC 68-2-14 -40°C to +70°C Vibrations IEC 68-2-6 10 to 500 Hz; 1 g or 0.075 min peak to peak Dimensions HxLxD 630 x 410 x 350 mm Mechanical Weight Protection Enclosure material 40 kg IEC 60529 IP55 316L stainless steel Connection Connection cubicles Connection type AMTED398031EN.indd Harting 10 pin connector 9 Options PM6 range Control unit Indication Display Indication Open/closed position Reason Open/closed position of the switch F.A. bb PC bb Super. bb Switch locked Switch blocked bb bb bb Phase fault Appearance of a phase current greater than the configured threshold bb (*) bb bb Earthing fault Appearance of a zero sequence current greater than the configured threshold bb (*) bb bb Digital input x (1 to 8) Digital input present bb Equipment under local control bb (1 to 4) bb bb Local bb bb Immediate indication of AC fault Lack of alternating U power supply Time delayed indication of AC fault Lack of alternating U power supply after a duration that can be defined between 0 s and 6 h Automatic control in action The automatic control has functioned (opening the switch) Measurement module fault Incorrect functioning of the measurement and fault detection module Charger fault Battery charger output voltage too high or too low Battery fault Batteries at the end of their life cycle or charging anomalies Switch power supply OFF Switch power supply turned off Telecommunication power supply OFF Power supply of the telecommunications output turned off Communication fault Lack of communication with the remote control supervisor (in the case of series module communication) or with a communication module bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb F.A.: front face of the Easergy T200 P PC: page “Visualization” of the Web server loads Super.: remote supervisor (*): in the “Control panel” module, “Phase fault” and “Earthing fault” indications are grouped together on the same indicator light. DE53437 PM6 connection - Control unit This diagram is just an example. The diagram sent with the unit should be verified. 10 AMTED398031EN.indd PM6 range Options Sectionalizer function PE56867EN The T200 P control unit is equipped with the sectionalizer automatic control option which converts the PM6 into a disconnector switch with sectionalizer function. In coordination with the automatic network head switch or with the recloser units, the PM6 can differentiate between transient faults and permanent faults in the section in which it is installed, automatically isolating the line only if there is a permanent fault. For this function, the PM6 must be equipped with the following functions: bb Voltage detection bb Current detection. 1) Network head switch operation. 2) PM6 disconnector switch operation. Automatic PM6 disconnector switch opens when the equipment has detected between 1 and 4 fault currents (programmable value) and when the following conditions are fulfilled: bb There is no voltage (automatic switch or recloser circuit breaker located upstream is open) bb The PM6 is in closed position bb The automatic control time has not expired. This function is particularly recommended in branch lines and conflicting network points or when there is a difficult to access, when we want to avoid transient fault procedures and so avoid disrupting the service to other users. Parameter Value Accuracy Phase detection threshold Configurable from 10 to 800 A by 1 A increments 1.6% from 20 A to 800 A output sensors Zero sequence detection threshold Configurable from 2 to 160 A by 1 A increments 1.6% from 20 A to 800 A output sensors Reaction time Configurable from 40 ms to 800 ms by 1 ms increments 1 ms Release threshold 95% of the trip threshold 3% Limit value hold 12.5 kA - 1 s Deleting records of fault current fed back from alternating U Configurable Deleting records of currents due to time delay Configurable from 1 h to 12 h by 1 h increments Fault detection Other measurement AMTED398031EN.indd Power P, S, Q 2.8% Energy 2% Power factor 1.7% Frequency 0.1% (on 10 periods) Voltage 1.2% (0.5% at 20ºC) 11 Options PM6 range PE50771r PM6 offers the possibility of installing all of these options on the same structure for quick and easy installation. Voltage transformer In places where equipment such as PM6 is normally installed, there is no auxiliary power supply to power the control unit charging device, including the radio, and its electronic circuit boards. It is therefore necessary to install an outdoor voltage transformer to supply the power needed for independent operation of all the equipment. A specially designed bracket has been included on the disconnector switch cradle for this purpose. The voltage transformer gives the necessary voltage presence and absence signals in order to carry out the sectionalizer function and setting by remote control. PE56869 PE56868 Options: low inductance VT, LV fuses in the secondary side. Current transformers Phase and fault current measurements are made using 3 current transformers, two phase and one zero sequence unit, placed on the disconnector switch. This configuration ensures the detection of all types of fault that can occur on the line. The transformer ratio is 500/1 A. The zero sequence detection threshold is between 2 A - 160 A. The phase fault detection threshold is between 40 A - 800 A. Lightning arresters Three lightning arresters on each side of the disconnector switch can be placed on an appropriate support frame to protect the equipment from overvoltages resulting from atmospheric conditions. PE50318r These lightning arresters are of zinc oxide type. Manometer or pressure switch Visual alarm indication and electrical alarm indication of the existing pressure inside the SF6 compartment, available under request. 12 AMTED398031EN.indd Architecture and Scada L500 PM6 range Network remote control DE58186 Continuity of service guaranteed by an overall telecontrol offer T200 T200 T200 PM6 PE56312r T200 Schneider Electric offers you a complete solution, including: bb The Easergy T200 P telecontrol interface bb MV switchgear that is adapted for telecontrol. PM6 PM6 PM6 T200 PM6 L500 network monitor screen Easergy L500, a solution to immediately improve your SAIDI (*) Easergy L500 is a SCADA providing all the functions needed to operate the MV network in real time bb Pre-configured with Easergy range products for monitoring and control of MV networks: vv MV/LV substations equipped with T200 I or Flair 200C vv Overhead LBS equipped with T200 P vv Overhead line equipped with Flite 116/G200 bb Broad range of transmission supports: Radio, GSM, GPRS, PSTN, LL, FO. Advantages bb Simple implementation: vv One to two weeks only for 20 MV/LV units vv Configuration, training and handling within a few days bb Short return on investment bb Service quality and operations rapidly improved. bb Simple and fast evolutions by operations managers. PE56313r (*) SAIDI: system average interruption duration index. 4 channel T200 P, radio communication AMTED398031EN.indd 13 The right choice PM6 range MESA is the Schneider Electric Group’s world-wide center of competency for the PM6 range. References Since 1990, over 14000 units have been installed throughout the world under all types of climatic conditions. The PM6 range is approved by major international companies and is recognized throughout the world. PE56870 Environment PM6 units have been designed as environmentally friendly equipment: the materials used, the insulators, the conductors... are identified and can easily be recycled. Moreover, the SF6 can be recovered and reused after suitable treatment. PE56871 The environmental management system adopted by MESA has been certified in conformity with the ISO 14001 standard. 14 AMTED398031EN.indd General dimensions PM6 range PE56872 Versions S3 (24 kV) / S4 (36 kV) Detail A Detail B (*) Recommended heights S4 / 36 kV 1950 2200 B 1350 1520 830 1050 900 970 E 290 360 PE56874 C D Fixing of lightning arresters PE56873 S3 / 24 kV A Thickness: 8 PE50337r Fixing of the voltage transformer DE58192 Detail A 40 45 14 Ø Detail B AMTED398031EN.indd Weight (kg approximate) S3 / 24 kV S4 / 36 kV Basic equipment 127 138 Basic equipment + VT 165 182 Basic equipment + lightning arresters 182 238 Basic equipment + VT + lightning arresters 220 282 The rods, the manual control and the control unit not included. 15 General dimensions PM6 range PE56875 Versions S2D (24 kV) / S3D (36 kV) Detail A S3D / 36 kV A 265 300 B 1350 1500 Interlocking (optional) PE56877 S2D / 24 kV PE56876 Fixing of lightning arresters Detail A PE56878 Fixing of the voltage transformer Weight (kg approximate) S2D / 24 kV S3D / 36 kV Basic equipment 130 140 Basic equipment + VT 170 180 Basic equipment + lightning arresters 205 255 Basic equipment + VT + lightning arresters 245 295 Control unit not included. 16 AMTED398031EN.indd PM6 range MV devices PE50329r Since the user has the best knowledge of the issues involved on his network and his objectives, he will therefore basically decide how to manage the devices installed on the network. Recloser or reclosing circuit breaker Automatic switch Three-pole / single-pole disconnector Disconnector switch / sectionalizer function Disconnector switch Disconnector Cut-out fuse Fault detector Lightning arrester Main line The installation of PM6 type remote controlled disconnector switches is the best and most economic and flexible option to disconnect the main line at various points and provide the isolation distance at these points. They can be used for radial or open ring lines; in the second case, they will be used as network reconfiguration components. In the case of long radial type lines, it may be necessarty to use reclosing devices to decentralize the protection that exists in the sub-station, whilst taking the necessary precautions to avoid coordination problems with respect to the associated protection devices. Branch line For this type of line, factors such as line length, topography, load, quality of supply, etc. impact the choice of the installed equipment. Remote control End of lines Until now, the protection and management of these network points has been carried out using fuses, cut-outs or manual disconnectors. Sectionalizers are tending to replace these mentioned solutions. PE56879EN PE50328r However, below we give a series of general guidelines which mainly focus on optimizing MV overhead distribution network management in terms of safety of people, installation costs and quality of service, all within the framework of a flexible operating arrangement. AMTED398031EN.indd 17 Order form Pole mounted load break disconnector switch PM6 Ticket Or fill with needed value Basic equipment Quantity Rated voltage 24 kV 36 kV Rated current 400 A 630 A 24 V DC 48 V DC Motor auxiliary supply (if motorized) Manual control via hook stick S2D/S3D Manual control via transmission at the base of the pole S3/S4 Options YES NO Mechanical locking (option in S2D/S3D) Current transformers Neutral point system (1) Lightning arresters of zinc oxide (1) Indicate lightning arrester required Voltage kV Voltage transformers (2) (2) Indicate the transformer ratio PRIMARY SECONDARY Transformer ratio Pressure switch (3) Manometer (3) (3) Consider that pressure switch and manometer options cannot be included at the same time. YES NO Control box Control box options: external card for RTU connection communication card for protocol IEC or DNP3 Indicate if other protocol is required Support frame Standard With support for voltage transformer With support for lightning arresters Standard height of the transmission is 8 m Mark X if it is the option required Indicate height required (in meters) Fulfill if height required is different 18 AMTED398031EN.indd Notes AMTED398031EN.indd 19 Notes 20 AMTED398031EN.indd 35, rue Joseph Monier CS 30323 F - 92506 Rueil Malmaison Cedex (France) Tél. : +33 (0)1 41 29 70 00 RCS Nanterre 954 503 439 Capital social 896 313 776 € www.schneider-electric.com AMTED398031EN As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication. Design: Schneider Electric Industries SAS Photos: Schneider Electric Industries SAS Printed: Altavia Connexion - Made in France 10-31-1247 This document has been printed on recycled paper 10-2011 ART93641 © Schneider Electric Industries SAS - All rights reserved Schneider Electric Industries SAS