Rec15-25 User Guide
136Pages

(ZEp TAVRIDA ELECTRIC Excellence in Engineering AUTOMATIC CIRCUIT RECLOSER

This document contains information on Rec15/25 series automatic recloser transportation, storage, installation, commissioning, operation, troubleshooting, decommissioning and disposal. This document also contains a basic description of the Rec15/25 series autoreclosers functional parts, accessories and functionality. For a detailed functionality and component description refer to the Product Guide. The Product Guide can be downloaded from the Tavrida Electric website or obtained from a Tavrida Electric representative. This document is intended for the following audiences:     ...

ABR Automatic Backfeed Restoration BAT Battery BF Bolted Fault BTM Bluetooth Module CC Control Cable (Umbilical) CCV Close condition verifier CLP Cold Load Pickup CPM Control Panel Module CT Current Transformer CU Current unbalance D Delayed EF Earth Fault protection element EF1 Low set Earth Fault protection element for Delayed trips EF2 Low set Earth Fault protection element for Instantaneous trips EF3 High set Earth Fault protection element for Instantaneous trips EL Event Log ETH Ethernet Module I Instantaneous I/O Input/Output IOI Input/Output Interface IOM Input/Output Module LCD...

RTU Remote Telecommunication Unit SCADA Supervisory Control And Data Acquisition SD Source Detector SEF Sensitive Earth Fault SEFR Sensitive Earth Fault with reclosing SI Synchronization indicator TEL Tavrida Electric TCI Telecommunication Interface TDI Telarm Dispatcher Interface UF Under Frequency UV Under Voltage VRC Voltage Reclosing Control VT Voltage Transformer VU Voltage Unbalance ZSC Zone Sequence Coordination

1.1 Product Application Field Reclosers can be applied in overhead distribution lines. The main applications are: • Clearing transient faults by performing autoreclosing; • Isolating sustained faults in the overhead line network; • Isolating sustained faults in a network where conventional protection coordination is not possible; • Automatic backfeed restoration. The recloser can also be used at outdoor substations feeding overhead distribution lines for: • Substation outgoing feeder with autoreclosing functionality; • Substation busbar coupler with backfeed restoration capability; •...

Mechanical Trip and Lockout Mechanism A mechanical trip hook is located at the bottom of the tank (Figure 3). When the hook is pulled down, the OSM is mechanically tripped, locked in the OPEN position and electrically isolated from the driver. An “OSM Coil Isolated” warning event is generated by the RC5_4 to provide indication of the locked state. The OSM remains locked and cannot be operated until the trip hook is pushed back into the operating position. Figure 3 Mechanical trip hook Mechanical Position Indicator The position indicator is located under a protective cover at the bottom of...

1. Three-point locking system 4. 2 x IP65 glands for Power supply cable (0 9... 17 mm) 5. Anti-vandal cover of Control Cable 7. Control panel module 9. Thermal overcurrent circuit breakers 10. Dust proof drainage filter 14. Battery circuit breaker 15. Door position switch 1. Door position switch 2. Remote telecommunication unit (RTU) mounting plate 3. Place for Inpul/Output module (10M) 4 Recloser Control Module (RCM) 5. Battery 6. Power supply filter module Figure 6 RC5_4 with internal door open

Figure 7 Control cable connection The RC5_4 cubicle is equipped with stainless steel earthing provision with M12x30mm bolt: All internal components and parts are earthed to the main RC cubicle with 2.5 mm2 copper earthing jumpers. The housing has provisions for protection against dust and water ingress. Figure 8 RC housing provisions The RC5_4 is equipped with a Door Position Switch which is used for disabling the CPM at closed RC, as well as a SCADA indication of the RC door position. The door position switch is mounted on the internal door and actuated by the lever mounted opposite to the...

Control Panel Module (CPM) The CPM provides local control and indication functions of the Rec15/25 (Figure 10). Control buttons and indication LEDs are located at the front side of the CPM (Figure 11). The CPM has an integrated USB interface for PC connection. Figure 10 Control panel module (CPM)

14. Earth Fault ON/OFF IS. Sensitive Earth Fault ON/OFF 17. Hot Line ON/OFF IS. Backfeed Restoration ON/OFF 19. Active (Protection) Group 1. TEL Logo 2. Title string 3. Label of Indication data. Control data or Settings 10. Parameter values of Indication data. Control data or Settings

Recloser Control Module (RCM) The RCM is the recloser control module. The RCM provides protection, communication, measurement and control functions. RCM connections with other RC modules Power supply filter module (PSFM) The PSFM is used for an RC5_4 auxiliary power supply connection (Figure 14). This module provides impulse noise protection for all internal modules of the RC5_4. Figure 14 Power supply filter module The rechargeable battery provides the RC5_4 with auxiliary power when the main auxiliary power is not present. The power supply system is designed to provide battery optimum...

The RC can be supplied with an IOM (Figure 15) module on request It provides control and indication functions with the aid of digital inputs/outputs. Figure 15 Input/Output module The IOM contains twelve digital inputs and twelve digital outputs. The location of these connectors (marked “15”…”18”) with these inputs and outputs are shown in Figure 16. Figure 16 Location of IOM connectors Digital inputs are potentially isolated by means of opto-couplers (Figure 17). Figure 17 Digital inputs Bistable relays with changeover contacts are used for the digital outputs as illustrated in Figure

Figure 18 Digital outputs Technical parameters of Input/Output Module are in Table 8. 1.2.2.6 Ethernet interface module can be supplied as an accessory. Wired Ethernet module Ethernet module provides full remote (SCADA) and local communication and engineering functionality via RJ45 port. Figure 19 Ethernet module installed on RCM Technical parameters for Ethernet interface in Table 9. Wired ethernet module starts working automatically after Network settings setup for corresponding interface is completed. LED indication description:  Green LED – Indicating the network connection speed....