Showing results: 541 - 549 of 549 items found.
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42-140B-121 -
Pickering Interfaces Ltd.
The 40-140B-121 (PXI) and 42-140B-121 (PXIe) are 75xSPST general purpose switching modules. They are part of a range of high density relay modules using ruthenium reeds available in 50x, 75x and 100x Normally Open SPST configurations. Connections are made via a front panel 200-pin female connector.
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SEL-2664 -
Schweitzer Engineering Laboratories, Inc.
Add the SEL-2664 Field Ground Module to the SEL-300G or SEL-700G to protect all the critical components in your generator with one comprehensive relay. Or, add the SEL-2664 to the SEL-2664S to complete ground fault protection on both the rotor and stator.
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WF 3154 C-Series -
WireFlow AB
The WF 3154 from WireFlow is a 4-channel Fault Injection Module for Compact RIO. Each channel provide three solid state relays that can be used to create electrical fault conditions like: Open circuit, Short circuit to battery, Short circuit to ground.
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Mors Smitt Group
Electrical protection relays for high voltage & high current protection offer protection in traction equipment as well as railway infastructure. Protection relays are used for applications like catenary voltage, short circuit, overload and ground fault detection in traction power electronics or railway substations.
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CR MAGNETICS, INC.
CR Magnetics Sensing Relays and Switches provide a simple method of monitoring electrical properties and alerting a system to a fault or event condition. These products are available with a wide variety of configurations, including time delays, various output styles and logic. From simple proving switches, to fully featured high performance ground fault sensing. Our relays and switches will provide the designer with the tools needed to implement many different control and event sensing schemes.
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HID -
GE Digital Energy
Use the HID module in conjunction with a high-speed overcurrent relay to provide three phase high impedance differential protection for substation busbars of any voltage level. Additionally, it can also be used to protect electrical machines like transformers, generators or motors against restricted ground faults.
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40-192-012 -
Pickering Interfaces Ltd.
This PXI fault insertion switch uses solid state switching elements and is capable of switching current up to 10A. It is designed to be able to insert three different fault conditions between the test fixture and the equipment under test: Open-Circuit. Short-Circuit between UUT connections. Short-Circuit to external signals. Through relays on each channel enable signals to the UUT to be set open-circuit. Fault Insertion Buses allow any channel to be shorted to any other channel and also enable any channel to be connected to an external signal such as Power, Ignition or Ground to simulate fault conditions. The module is supplied with 2 fault buses.
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40-200-008 -
Pickering Interfaces Ltd.
This PXI Fault Insertion module is designed to simulate common faults on two wire communication interfaces such as CAN Bus. This module supports 4 or 8-channels of two wire serial interfaces. Each channel can simulate an open fault in either or both wires, a short between both wires or a short to one of eight externally applied fault connections, such as a battery connection or ground, via four fault buses. Each channel can support up to 0.3A and is rated to handle up to 100V between the wire pairs. The wire pairs have controlled transmission line impedance suited to most differential pair signalling systems, including fast CAN Bus interfaces and RS232. Each fault bus is capable of carrying 2A allowing multiple channels to be connected to the same fault condition. Additionally, each fault bus features a changeover relay to allow the user to connect alternative fault conditions to the fault buses.
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Post Glover
The main purpose of a Neutral Grounding Resistor (NGR) is to limit the fault current present in a single line to ground fault. Limiting the possible current that can flow in such an event not only reduces damage to equipment but also helps safeguard personnel in the vicinity. Depending on the design of the resistor, this current value can be either high or low, continuous or of a predetermined duration. The resistor’s designed maximum current allows relays and protection settings to be easily determined and enacted, creating a safe work environment.