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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR, 3 PHASE, 380 VAC, TIME DELAY. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: RELAY PHASE MONITOR 8AMP 154-286VAC 3PHASE. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, 3-PHASE MONITORING RELAY, DIN RAIL, SPDT 10A, 3X220 VAC. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: MOTOR PROTECTOR, 3PH, 190-480VAC, 8-PIN OCTAL BASE, SPDT OUTPUT, 10A MAX, PHASE LOSS/SEQ/REV/LOW VOLTAGE. FREE 2 YEAR RADWELL WARRANTY
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Supplier: CARLO GAVAZZI Automation Components
Description: This 3-phase voltage and frequency monitoring relay provides the utmost flexibility in very compact dimensions, as it offers a wide range of features in a mere 22.5mm product width. It provides protection against phase reversal, phase loss and if the phase
- Features: Time Delay, Visual Indicator
- Maximum AC Switching Voltage: 250 volts
- Maximum Current: 8 amps
- Maximum DC Switching Voltage: 24 volts
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Supplier: Time Mark Corporation
Description: The Model 2501 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct
- Features: Automatic Reset, Programmable Time Delay, Visual Indicator
- Operating Temperature: -4 to 131 F
- Over-voltage Protection: Yes
- Phase Failure (Loss): Yes
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Supplier: Time Mark Corporation
Description: The Model 2500 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct
- Features: Automatic Reset, Programmable Time Delay, Visual Indicator
- Operating Temperature: -4 to 131 F
- Over-voltage Protection: Yes
- Phase Failure (Loss): Yes
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Supplier: Time Mark Corporation
Description: The Model 259 3-Phase Monitor is designed to protect individual 3-phase equipment and motors, or in conjunction with shunt trip breakers. When correct voltage and phase rotation is applied, an internal DPDT relay energizes. A fault condition (phase
- Features: Automatic Reset, Programmable Time Delay, Visual Indicator
- Frequency Sensing Range: Up to 50 Hz
- Operating Temperature: -20 to 131 F
- Phase Failure (Loss): Yes
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Supplier: Time Mark Corporation
Description: will enter the setup mode.This unit has a user selectable relay option for High-Low or DPDT. It can also be user-selected to energize on fault or de-energize on fault. The user can select automatic or manual restart on the Model 25. The Model 25 True RMS 3-Phase Monitor can be
- Features: Programmable Time Delay, Visual Indicator
- Frequency Sensing Range: 50 to 60 Hz
- Operating Temperature: -20 to 130 F
- Over-voltage Protection: Yes
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Supplier: Colby Instruments, Inc.
Description: Programmable delay at an amazing value! The new HPDL-100A utilizes precision cut semi-rigid coaxial cable and Aerospace grade microwave relays to offer delay from 0 to 10.23 ns with a step precision to 10 ps. Input signal bandwidth is from DC to 12.5 GHz. One programmable
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Supplier: Panel Components & Systems, Inc.
Description: current. An adjustable time delay of 0 to 20 seconds is provided. Correct setting of the trip point and time delay will ensure protection against motoring in the event of a generator failure and prevent tripping due to transients encountered during synchronising. A red
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Supplier: Panel Components & Systems, Inc.
Description: . Customer adjustment of unbalanced voltage between 5 to 15% is provided along with time delay adjustment of 200ms to 10 seconds. If the system being monitored is healthy, the relay is energised, and the red LED will be illuminated. If a phase unbalance greater than the
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Supplier: Panel Components & Systems, Inc.
Description: The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The relay operates when
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Supplier: Panel Components & Systems, Inc.
Description: The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The relay operates when
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Supplier: RS Components, Ltd.
Description: Premium range of On-Delay timers which provide the user with a dynamic multi-range and multi-voltage product to ensure your application is covered 7 timing ranges supported offering timer functions from 1 second to up to 100 hours. Single phase & three phase options available.
- Maximum Time Interval: 100 hours
- Minimum Time Interval: 0.1000 seconds
- Number of Contacts: 2
- Number of Functions: Multi Function
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Supplier: TE Connectivity
Description: Product Type Features Phase : Three Protection Function : Reverse Power Relay Options : Time Delay Termination Features Relay Connection Type
- Operating Temperature: -4 to 158 F
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Supplier: RS Components, Ltd.
Description: violated. 3-state indication LEDs. Timing dial. DIN mountable. 17.5 mm wide Supply Voltage = 18 - 30 V Time Range = 0 - 10 s Mode of Operation = Monitoring and Reacting to Over and Under Voltage Mounting Type = DIN Rail Number of Timer Functions = Single Number of Contacts = 1
- Maximum Time Interval: 0.0028 hours
- Minimum Time Interval: 0.0 seconds
- Number of Contacts: 1
- Number of Functions: Single Function
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Supplier: RS Components, Ltd.
Description: programmed for multi-function or mono-function. LED status indication for easy recognition. Simple screw terminal connections which support cable cross sectional areas from 0.5 - 3.3mm² single core and for quick installation Supply Voltage = 24 V dc, 24 - 240 V ac Time Range = 0.1 s -
- Maximum Time Interval: 100 hours
- Minimum Time Interval: 0.1000 seconds
- Number of Contacts: 2
- Number of Functions: Multi Function
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Supplier: RS Components, Ltd.
Description: programmed for multi-function or mono-function. LED status indication for easy recognition. Simple screw terminal connections which support cable cross sectional areas from 0.5 - 3.3mm² single core and for quick installation Supply Voltage = 230 - 240 V ac, 380 - 440 V ac Time Range =
- Maximum Time Interval: 100 hours
- Minimum Time Interval: 0.1000 seconds
- Number of Contacts: 2
- Number of Functions: Multi Function
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Supplier: TE Connectivity
Description: Holes Product Type Features Phase : Single Protection Function : Overvoltage Relay Options : Time Delay Termination Features Relay Connection Type : Terminals Terminal Configuration : Screw Terminals
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Supplier: TE Connectivity
Description: Protection Function : Underfrequency Relay Type : Protective Relay Time Delay : With Signal Characteristics Frequency Adjustment (HZ) : 50 - 60 Usage Conditions Operating Temperature Range (DEGC) : -20 - 65
- Operating Temperature: -4 to 149 F
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Supplier: TE Connectivity
Description: Type Relay Type : Protective Relay Time Delay : Without Signal Characteristics Frequency Adjustment (HZ) : 50 - 500
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Supplier: Automation24, Inc.
Description: The 3Ø- Voltage protection relay 600VPR-170/290-CU from Selec has an operating range of 170/290V [600VPR-170/290V] with an adjustable trip delay time from 0.2 to 10 seconds. The voltage protection relay 600VPR-170/290-CU is simple to install with its DIN rail
- Mounting: DIN Rail, Other
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Supplier: WorldWide Electric Corporation
Description: Provides optimum inverse-time delayed protection of loads against excessive temperature rises due to overload Provides optimum inverse-time delayed protection of loads against excessive temperature rises due to phase unbalance Minimizes heating of induction motors
- Full Load Current Range: 80 to 100 amps
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Supplier: CARLO GAVAZZI Automation Components
Description: Small, low-cost mono function timer with adjustable time setting. Only 2-wire connection for easy and fail-safe use (see diagram). For mounting on DIN-rail or directly on surface by screws. The timer is used e.g. to delay small industrial relays or 3-phase
- Display Type: Non-indicating
- Field Selectable Time Ranges: Yes
- Functions: Delay On Timer
- Maximum Time Setting: 0.1667 hours
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Supplier: Process Technology
Description: power fails. Rated power: 3.5VA. Connections: 6.3 x 0.8 mm tab terminals (conforms to DIN 46244). OPTIONS AVAILABLE (CONSULT FACTORY) Plastic wall mountable enclosure Can be incorporated into a combination control for three phase service and larger heater loads.
- Display Type: LED
- Functions: Interval Delay Timer
- Mounting: Panel / Flange Mount
- Number of Digits (or Characters): 4
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Supplier: Selectric, Inc.
Description: Time delay relays, run light, lockable handle, submersible model available
- AC Motor Phase: Three Phase Motor
- Device: AC Motor Starter
- Device Technology: Solid State, Electromechanical
- Manual Starter: Yes
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Supplier: Schneider Electric, Automation & Control
Description: - Number of poles: 1P, 2P, 3P, 4P - Compliance with standards: IEC 61095 and IEC 60947-5 - Electrical endurance (O-C):100,000 cycles - Optional auxiliary: state indication, interference filtering, dual control, time delay Benefits Control and monitoring of electrical circuits
- AC Motor Phase: Single Phase Motor, Three Phase Motor
- Device Technology: Electromechanical
- Number of Poles: 1 to 4
- Rating Standard: IEC Rated
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Supplier: Littelfuse, Inc.
Description: sensitive equipment. The isolated, 10A, DPDT relay contacts trip when a phase voltage exceeds the trip limits for the trip delay. Nominal line voltage, voltage unbalance, and time delays are knob adjustable. The phase loss setpoint and the acceptable
- Mounting: Other
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Supplier: ValueTronics International, Inc.
Description: The MACROTESTG3 is a HiPot from HT Instruments. HiPot, or high potential, is a class of electronic test equipment used to verify electrical insulation. Engineers use HiPot-testing instruments on cables, wires, circuit boards, appliances, electric motors, and transformers. As a product ages,
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Supplier: OMRON Automation and Safety
Description: independent ON and OFF periods available Power-OFF delay models available 5-amp DPDT relay switches when timing cycle completes Short, 80 mm (3.15 inch) panel mounting depth with socket allows space-efficient control panel design Field-selectable time ranges from
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Description: instrument has a time delay which prevents a fault signal during the drive starting phase. If the monitoring system has cut out, the operating fault must first be rectified. The transmitter must not be exchanged. After it has cooled down to below the actuating temperature, the
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Supplier: ValueTronics International, Inc.
Description: Measure mode provides graphic display of measurements: K factor, differential gain and phase, luminance to chrominance delay, noise spectrum, group delay with (sin x)/x, color bars Relative to reference on most measurements Configurable for all standard test signals Three
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Supplier: CSA Group
Description: from the motor. Automatic change-over devices may be used to control the successive switching operations from one step to the others. Such automatic change-over devices are, for example, time-delay contactor relays or specified time all-or-nothing relays, under-current
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EHV Protective Relaying on SCEC System
The backup relaying consists of either a separate set of harmonic restraint differential relays, or a set of either 2- or 3 -zone distance phase relays and directional time delay , and instantaneous overcurrent ground relays on both the EHV and HV terminals …
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Ocean Thermal Energy Conversion power system development. Phase I: preliminary design. Final report
The radial feeder circuits are protected by torroidal zero sequence current transformers (Type BYZ) around all 3 phase leads connected to 3 (one per phase) single phase or one 3 phase overcurrent relay with instantaneous and long- time delay units.
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Performance of multi-relay coded cooperative diversity in asynchronous code-division multiple-access over fading channels
transmission delay during the relaying phase (see the timing diagram in Fig. 3 ), where each cooperating relay [f1(k) · · · fV (k)] will have to wait for a time delay of Dk,v for the preceding relay to finish transmission …
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Impact of midpoint STATCOM on the coordination between generator distance phase backup protection and generator capability curves
Table I shows the severest cases of time delay in the operating time ( time delay > 3 cycles) and (TUR) of the generator distance phase backup protection relay (21) for both line-to-line and three phase faults.
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Power System Commissioning and Maintenance Practice
… testing, should carry a well equipped box of test equipment which should include wires, terminations, short-circuits, a variety of resistors, capacitors, switches, miniature time - delayed relays , miniature clip-on amme- ter, single- phase and 415 V 3 -phase supply leads, box …
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Joint Cooperative Diversity and Scheduling in OFDMA Relay Systems
Instead of using time -varying phase rotation at each relay like [ 3 ], we apply a fixed cyclic delay at each relay to realize diversity in the frequency domain.
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Discussion on ¿Field suppression of turbo-alternators¿ before the Supply Section, 9th December, 1959
These relays on the stator terminals would give a wrong indication in the case of a 3 - phase short-circuit, and therefore a time delay is provided between the closing of the relay contacts and the suppression of the negative excitation.
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http://www05.abb.com/global/scot/scot229.nsf/veritydisplay/444e5ded91a9d1d385256f320072e1e9/$File/IB40-201.9bREL352%20v1.13%20.PDF
STAT TEST TLDT SRT OPTI TRIP BFI SRI 3 RI R B GS FALM TALM CALM Relay Self-Check Status Phase comparison TEST ENABLE Signal Test Mode Computation of Local Delay Time Monitor Standing Relay Trip Signal Display Opto Input Status Relay …
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Performance Comparison of Distance Protection Schemes for Shunt-FACTS Compensated Transmission Lines
The only cases of relay failure to operate for 3 - phase in- ternal fault were observed in the DCB scheme as a result of the communication coordination time delay setting of its instanta- neous Zone 2 element.
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CR4 - Thread: Substation Protection
"Bus differential" "Transformer differential" "permissive trip" "transfer trip" "remote trip" " delayed trip" " Instantaneous trip" "stuck breaker relay " "single phase trip" " 3 phase fault" "ground relay" " time overcurrent relay" "distance relaying" "first zone fault" "second zone fault" "Overeaching …