VAMP 259
12Pages

Line manager for distance and line differential protection The VAMP 259 line manager is used for applications where combined protection, remote and local control, measurement, power quality, alarming and status indication functions are needed. The manager is suitable for full-scheme distance protection and it incorporates line differental functions usually required for the protection of subtransmission cables and overhead lines. MAIN CHARACTERISTICS • Medium voltage/sub transmission line differential protection (87L) • Distance protection (including full scheme) with 30 independent distance elements for 6 measuring systems (21/21E) • Pilot channel communication functionality for various protection schemes (85) • Complete set of time and instantaneous overcurrent, overvoltage, undervoltage, and frequency protection functions • Sensitive earth fault protection functions which are suitable for compensated, isolated and solidly grounded networks • Programmable protection stages • Auto-reclose function • Synchrocheck function • Digital input support for Trip Circuit Supervision • Selectable nominal DI activation voltage • Frequency stage df/dt (ROCOF) • Fault value, alarm led display, event buffer, blackout data and disturbance recording storage in non volatile memory • Native solution for IEC61850 communication with support for GOOSE messages • Removable / interchangeable communication modules for connecting the relay to various system communication solutions and medias

Line distance protection The distance protection function calculates the impedance Z = U/I for each of the distance elements. If impedance is inside the tripping zone (normally presented in R-X plane), the distance function operates. For short circuit protection there are 15 independent elements and earth fault protection. The distance protection function calculates impedances in each of the fault loops continuously thus giving the distance protection high precision and accuracy for demanding sub-transmission applications. The distance protection’s zones implement polygonal characteristics....

Line differential protection Line differential protection dI> / 87L provides high speed clearing for faults occurring at any point of the protected line or cable. Phase segregated protection is based on current (vector) differential. Combination of both phase and magnitude differential is used to determine operation. The differential element takes sampled values of the instantaneous current waveform as its local input and compares it with a corresponding current from the remote end. The measured signal is converted to magnitude and angle information for comparison. A dedicated communication...

Arc flash protection When time-grading or blocking based protection coordination principles are used, traditional protection systems may not provide fast enough protection of substation faults. Further, high- impedance type faults may cause prolonged operation times of earth-fault relays, leading to significant release of arc energy. These facts pose a considerable risk to human beings and economical assets. By applying a modern, high- speed arc flash protection system, the damage may be considerably reduced. Such an arc flash protection system is an optional feature that can be...

Connection diagrams Front Local port Remote port Extension port Should the voltage transformer connection be phase to When the voltage transformer is connected to phase the voltage measuring mode is selected 1LL transform the phase to ground voltage, the voltage measuring mode shall be 1LN

Nominal phase current (A) / nominal DI7-28 activation voltage 4 = Standard 24 Vdc - Nominal earth-fault current Io1 [A] B =5 A C =1 A D = 0.2 A - Additional I/O (X8 terminal) 6 = None 9 =8 standard inputs and 4 outputs Optional hardware (communication port 1) TTL/RS-232 Plastic/Plastic serial fibre interface (VCM fibre PP) N/A RS 485 interface (4-wire, VCM 485-4) Glass/Glass serial fibre interface (VCM fibre GG) Rx Plastic/Tx Glass serial fibre interface (VCM fibre PG) Rx Glass/Tx Plastic serial fibre interface (VCM fibre GP) RS 232 with RJ-45 connector (VCM 232) ST 100Mbps...

Order code Available option-cards possible to be ordered separately: Order code Explanation VCM 485-4 RS 485 interface (4 wire) VCM FIBRE PP Serial fibre interface (Plastic/Plastic) VCM FIBRE GG Serial fibre interface (Glass/Glass) VCM FIBRE PG Serial fibre interface (Plastic/Glass) VCM FIBRE GP Serial fibre interface (Glass/Plastic) VCM RTD RTD interface (Glass fibre)

Technical Data, Tests and Environmental Conditions Measuring circuitry Rated phase current Current measuring range Thermal withstand Rated residual current (optional) Current measuring range Thermal withstand Rated residual current Current measuring range Thermal withstand Rated residual current (optional) Current measuring range Thermal withstand Burden Voltage measuring range Continuous voltage withstand Frequency measuring range Terminal block Solid or stranded wire Maximum wire dimension Auxiliary voltage 40 - 265 V ac/dc Rated voltage Uaux < 7 W (normal conditions) < 15 W (output...

Disturbance tests t\± DEVICE TRACK RECORD • Schneider Electric’s VAMP Range specializes in arc flash protection relays for power systems. • Schneider Electric VAMP’s arc flash fault protection functionality enhances the safety of both people and property and has made Schneider Electric VAMP a pioneer in the field of arc flash protection with more than 10.000 VAMP arc flash systems and units with over 150.000 arc detecting sensors in service worldwide. • Schneider Electric VAMP products meet the latest international standards and regulations. Insulation test voltage (IEC 60255-5) Mechanical...