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overcurrent and voltage protection |
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| IVD | |||
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 IVD relays are mainly used in circuits ( feeders, motors, transformers, etc.) where overload, phase to phase and ground short circuit, and maximum and minimum voltage protection are required. |
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Description | ||||
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Distribution
Power Machines
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 - Phase Overcurrent - Ground Overcurrent - Sensitive Ground Overcurrent - Directional Phase Overcurrent - Directional Ground Overcurrent - Directional Isolated Ground Overcurrent - Ground Overvoltage - Negative Sequence Overcurrent (unb. I) - Negative Sequence Overvoltage (unb. V) - Current Element Blocking Logic - Minimum Voltage - Maximum Voltage - Maximum Ground Voltage - Maximum Voltage with Harmonic Restraint - Maximum / Minimum Frequency - Zero Sequence Current Element - Open Phase eElement - Breaker Failure - Synchronism Check - Recloser - Measuring board (I, V, PF, Q, Hz) optional in 7IVD relays - Models available in 7IVD format - Trip and Close Coil Circuit Supervision. - Breaker (KA2) Monitoring and Excessive Number of Trips. - Fault Locator (Model B and T). - Three (3) Settings Table. - Time Elements with IEC Curves. - Control and Monitoring: Alphanumeric Display (3/7/8IVD). Two (2) Open/Close Buttons (Model 7IVD). Graphic Control Display (Model 7IVD). - Programmable Logic. - Communications Ports: One (1) Local Port RS232. Up to two (2) Remote Ports: RP1: F.O or RS232 or RS485. RP2: F.O or RS232/RS485 (optional). - Communications protocols: Procome 3.0; DNP 3.0; Modbus (optional). - LEDs. - Configurable Digital Inputs (from 8 to 40). - Configurable Digital Outputs (from 7 to 38). - Analog Metering Inputs (I,V). - Measuring Board with Dedicated Transformers (3I, 3V, P, Q, PF, Hz, Energies) (Models 7IVD). - Transducer Inputs (Models 7IVD). - Counter Input (Models 7IVD). - Event and Metering History Records. - Oscillographic Record (COMTRADE 99 format)(optional). - Communications Software ZiverCom. - ZiverLog Logic cCnfiguration software (for 7IVD relays). Models 3/8IVD [A] 3x50/51 + 50N/51N + (2x27) + 59N [B] 3x50/51 + 50N/51N + (2x27) + (2x27R) [C] 3x50/51 + 50N/51N + 59N [D] 3x50/51 + 50/51N + 64 [E] 3x50/51 + 50N/51N + 59 + (0.5-6A)(0.5-150A) harmonics restraint [F] 3x50/51 + 64 (*) + Measure with 3 TC's (P, Q, W and Freq.) [G] 3x50/51 + 3 x 27 (**) [H] 3x50/51 +50N/51N + 59N + 59N2 [K] 3x50/51 + 50/51N + (3 x 27) + (3 x 59) + 81 + 79 [J] [ K + I >> duplicated ] [L] 3x50/51 + 50/51N + 67 + 67N + 3x27 (Ins.+Time) + 3x59 (Ins.+Time) + 81 (max/min) + 79 Models 7IVD [A] 3x50/51 + 50N/51N + (2x27) + 59N [B] 3x50/51 + 50N/51N + (2x27) + (2x27R) [C] 3x50/51 + 50N/51N + 59N [D] 3x50/51 + 50/51N + 64 [E] 3x50/51 + 50N/51N + 59 + (0.5-6A)(0.5-150A) harmonics restraint [F] 3x50/51 + 64 (*) + Measure with 3 TC's (P, Q, W and Freq.) [G] 3x50/51 + 3x27 (**) [H] 3x50/51 +50N/51N + 59N + 59N2 [K] 3x50/51 + 50/51N + (3x27) + (3x59) + 81 + 79 [J] 3x(2x50)/51 + 2x50N/51N + (3x27) + (3x59) + 81 + 79 [L] 3x50/51 + 50/51N + 67 + 67N + 3x27 (Ins.+Time) + 3x59 (Ins.+Time) + 81M/m + 79 [M] K+47(U2>>)+ current element blocking logic [N] 3x50/51 + 50/51N + 67 + 67N + 46 + 51NT + 3x27(Ins.+Time) + 3x59(Ins.+Time) + 79 [S] 3x67 + 67Na + 3x27 + 3x59 + 81(load shedding) + 59N(1 and 2) + 25 + 79 (UEF with pulses) + 86 (Non volatile memory) [T] 3x50/51 + 50/51N + 50Ns/51Ns + 67 + 67N (Pol by V) + 3x27 (Ins.+Time) + 3 x 59 (Ins.+Time) + 81M/m + 79 [U] 3x67 + 67N (Pol by V) + 67Na + 3 x 27 + 3x59 + 81M/m + 79 [V] 3x50/51 + 50/51N + 50Ns/51Ns + 67 + 67N (Pol by V) + 3x27 (Ins.+Time) + 3 x 59 (Ins.+Time) + 81 (M/m + load shedding) + 79 [Z] 3x50/51 + 67Na +3x27 + 3x59 + 81(load shedding) + 59N(1 and 2) + 25 + 79UEF with pulses) (*) Connection to 3 PTs (**) Unintentional energisation |
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