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General| Rated Current | 1A or 5A |
|---|---|
| Power Supply | 24-250V DC or 110-230V AC |
| Protection Functions | Overcurrent, Earth fault |
| Communication | Modbus RTU |
| Standards | IEC 60255 |
Describes the comprehensive protection functions of the manager for utility, industrial, marine and off-shore applications.
Provides critical safety instructions for handling the manager and its terminals, emphasizing potential dangerous voltages.
Outlines the three methods for controlling the manager: local panel, PC, and remote control.
Details the components of the manager's front panel used for local control.
Explains the LCD dot matrix display's capabilities and purposes for showing diagrams and parameters.
Describes menu navigation using arrow keys and the function of each keypad key.
Explains the meaning of the eight LED indicators on the manager and their functions.
Explains the main menu/submenu structure and navigation using keys.
Provides an example structure for specific protection functions like I>.
Explains the use of two setting groups for protection functions and how to change them.
Describes how protection functions log faults with timestamp and values, and how to view them.
Details the three operating levels (User, Operator, Configuration) and their access methods.
Explains password entry and management for accessing operating levels.
Explains how to control objects (e.g., circuit breakers) and toggle local/remote status.
Lists measured values like power, frequency, and their corresponding menu/submenu paths.
Explains the meaning of LED indicators and how to reset latched indicators.
Describes how to read and navigate the event register using the Evnt submenu.
Explains how to use the force function for testing by switching functions on/off.
Explains how setting out-of-range values triggers a fault message and how to view allowed ranges.
Details the steps for navigating to setting menus and changing parameter values.
Lists functions and features available in the disturbance recorder menu and available links.
Outlines functions for configuring digital inputs and outputs, including status, counters, polarity, and relays.
Explains how to read/set protection functions, reset counters, and define interlockings.
Explains that parameters are set in submenus and lists available protection stages.
Lists configurable features within the CONF menu, including device setup, scaling, and device info.
Describes communication options for Remote, Local, and PC ports with various protocols.
Explains that blocking and interlocking configuration is done via VAMPSET software.
Lists uses of the PC interface like parameterization, software loading, and reading values.
Explains communication with higher-level systems via serial port using various protocols.
States that managers have factory default or customer-defined settings.
Outlines steps for defining and checking settings during commissioning.
Provides an example of scaling, setting values, and grouping output relays.
Describes the VAMP 257's capabilities for protecting feeders and motors in various industries.
Lists key features like digital signal handling, wide setting ranges, and integrated fault location.
Explains the manager's use of numerical technology and Fast Fourier Transformation (FFT).
Provides a reference guide for protection functions and their dependencies.
Explains the feeder protection and motor protection modes and how to change them.
Details the three-phase overcurrent function with stages I>, I>>, and I>>>.
Explains the stand-alone algorithm for locating short circuits in radial networks.
Describes the algorithm for locating earth faults in compensated earthed networks.
Details the three-phase directional overcurrent function with multiple stages and modes.
Explains the function for detecting unbalanced load conditions due to a broken wire.
Details protection against unbalanced phase currents and single phasing, based on negative sequence current.
Explains protection to prevent motor running in the wrong direction.
Describes protection against prolonged starts or stalled rotors, based on current and time.
Explains protection to prevent too frequent motor starts based on start count and intervals.
Details undercurrent protection for devices driven by the motor, like submersible pumps.
Explains directional earth fault protection for sensitive applications and varying network structures.
Details earth fault protection using different inputs for residual current measurement.
Explains protection for capacitor banks against unbalance currents, especially in double-wye configurations.
Describes residual voltage protection using two stages, operating with definite time characteristics.
Explains thermal overload protection based on RMS current values and heating calculation.
Details the auto-reclose matrix, start/trip signals, and sequence timing.
Explains three-phase overvoltage protection with adjustable stages and fixed start delay.
Details three-phase undervoltage protection with adjustable stages and settable release delay.
Explains protection for generators against motoring and for motors against loss of load.
Describes protection against over/under frequency, with configurable stages.
Details underfrequency protection, often used for load shedding purposes.
Explains ROCOF function for load shedding, loss of grid detection, and frequency behavior.
Explains the second harmonic stage used for blocking other stages, measuring the ratio of harmonics.
Describes the function to check synchronism when the circuit-breaker is closed, monitoring voltage, frequency, and phase angle.
Explains CBFP based on supervising operating time from trip relay pickup to dropout.
Details arc fault protection using arc sensors and fast overcurrent/earth fault functions.
Describes eight programmable stages that can be enabled/disabled for custom applications.
Explains measurement of fundamental frequency values for power and energy calculations.
Details calculations for active, reactive, and apparent power using phase and line voltages/currents.
Explains calculation of THD and harmonics for currents and voltages from 2nd to 15th order.
Describes function to detect and measure voltage interruptions and sags over various periods.
Explains monitoring and logging of voltage sags and swells based on sag/swell limits.
Details supervision of CT wiring and phase currents for detecting open secondaries.
Explains supervision of VT wiring and detection of fuse failures in voltage transformer circuits.
Describes function for supervising circuit breaker wear and estimating maintenance needs.
Explains configuration for sending pulses based on imported/exported energy amounts.
Details controlling objects like circuit breakers, disconnectors, and earthing switches via HMI, communication, or digital input.
Explains how to select Local/Remote mode using HMI or digital input.
Explains routing signals to output relays, blocking, and using blocking/output matrices.
Describes blocking protection stage operation using a blocking matrix configured in VAMPSET.
Explains combining output signals with trip relays and indicators using an output matrix.
Describes virtual inputs acting like digital inputs and virtual outputs acting like relays.
Explains recording measured signals, digital inputs/outputs, and arc light information.
Explains the watchdog circuit and internal supply voltage supervision.
Explains external synchronization of the internal clock for accurate time stamping.
Describes four settable timers for various applications, with daily or weekday settings.
Details data stored in non-volatile memory like disturbance recordings, events, and blackout data.
Illustrates versatile functions of VAMP 257 in substation feeder protection, including blocking I>>>.
Shows VAMP 257 in cable protection for industrial plants, including directional earth fault and overcurrent.
Illustrates VAMP 257 protection for parallel lines with overcurrent relays, some directional.
Explains protection of ring networks with directional overcurrent relays and grading time.
Explains the importance and methods of trip circuit supervision for reliable breaker operation.
Mentions internal digital inputs on output relays for trip circuit supervision.
Details using one digital input for trip circuit supervision, with configuration and application examples.
Explains trip circuit supervision using two digital inputs, parallel with trip contacts and breaker auxiliary contact.
Shows the rear panel layout and terminal connections for the VAMP 257.
Lists analogue inputs for phase currents, earth fault currents, and voltages.
Explains how to collect status and alarm signals via digital inputs, including voltage requirements.
Details the external auxiliary voltage connection for the terminal.
Lists the thirteen configurable output relays and the self-supervision relay.
Details pin assignments for various communication module types (VCM TTL, TCP, 485-2, Fiber).
Shows pin numbering and signals for the front communication port.
Lists supported protocols like SPA-Bus, ModBus RTU, ModBus TCP, Profibus.
Details the optional arc protection card, its connections, and signal transmission.
Explains the DI19/DI20 option for additional digital inputs, useful for compensated networks.
Mentions external modules for extending digital I/O and analogue inputs/outputs.
Mentions the external LED module for 16 additional indicators.
Mentions external modules for extending digital I/O and analogue inputs/outputs.
Shows a block diagram illustrating the VAMP 257's internal structure and connections.
Shows block diagrams for optional arc protection and DI19/DI20 modules.
Provides connection examples for the VAMP 257 in feeder applications.
Shows a connection example for double busbar synchrocheck application using '2Side+U0' mode.
Illustrates a connection example for VAMP 257 used as a motor protection manager.
Details rated currents, measuring ranges, thermal withstand, and burdens for various inputs.
Provides specifications for auxiliary voltage types, power consumption, and terminal block dimensions.
Lists internal and external digital input specifications, current drain, and terminal block details.
Details specifications for trip contacts, including rated voltage, carry capacity, and breaking capacity.
Provides specifications for alarm contacts, including rated voltage and breaking capacity.
Specifies the number of ports, electrical connection, and data transfer rate for the local port.
Lists ports, electrical connections, data transfer rates, and protocols for remote control.
Details specifications for the optional arc protection interface, including sensor inputs and voltage levels.
Lists disturbance test types (emission, immunity) according to relevant standards.
Specifies insulation and surge test voltages according to IEC standards.
Details vibration and shock test parameters according to IEC standards.
Lists operating, transport, and storage temperature, and relative humidity specifications.
Provides casing details like degree of protection, dimensions, material, weight, and colour code.
Details various protection stages including overcurrent, directional current, and stall protection.
Details overcurrent stages I>, I>>, I>>> with pick-up, operating time, and inaccuracy.
Details directional overcurrent stages Idir>, Idir>>, Idir>>>, Idir>>>> with pick-up, mode, and angle settings.
Lists settings for frequent start protection, including max motor starts and min time between starts.
Details settings for the AR function, including reclaim time, pulse length, and shot settings.
Details overvoltage, undervoltage, and residual voltage protection stages with their respective settings.
Details overfrequency and underfrequency protection stages with measuring ranges and definite time functions.
Lists settings for the second harmonic stage, including setting range and operating time.
Details settings for ROCOF stage, including pick-up, definite time, and inverse time delays.
Lists settings for synchrocheck function, including sync mode, voltage check modes, and timing parameters.
Details settings for CBFP, including relay to be supervised and operating time.
Lists setting ranges and arc sensor connections for arc protection stages.
Details settings for the disturbance recorder, including mode, sample rate, recording time, and channels.
Provides dimensional drawings and panel cut-out dimensions for the feeder manager.
Illustrates flush mounting of the feeder manager in a panel.
Shows semi-flush mounting and provides dimensions with raising frames.
Provides order codes for VAMP feeder managers, including nominal current, I/O, supply voltage, and hardware options.
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