Product sheet (PDF/389 kB)
... synchronization of generator units to the power supply grid. It also provides a number of monitoring functions for generator and grid protection. The circuit-breakers are tripped by the module directly via digital outputs and relays. Additional digital inputs enable the monitoring of the relevant sw ...
... synchronization of generator units to the power supply grid. It also provides a number of monitoring functions for generator and grid protection. The circuit-breakers are tripped by the module directly via digital outputs and relays. Additional digital inputs enable the monitoring of the relevant sw ...
Specs
... 4X (IP65) front panel with tactile feedback push buttons. Large, bright LED’s provide an easy-to-read interface at a distance. Flexibility and Simplicity Outputs are plug-in modules that are field replaceable. The switchselectable control modes include on/off or proportional-integral (PI). Sensor Ty ...
... 4X (IP65) front panel with tactile feedback push buttons. Large, bright LED’s provide an easy-to-read interface at a distance. Flexibility and Simplicity Outputs are plug-in modules that are field replaceable. The switchselectable control modes include on/off or proportional-integral (PI). Sensor Ty ...
Effects of GIC Neutral Blocking Devices (NBDs) on Transmission
... possibility for resonance under steady state unbalance, however in some cases actual resonance may be masked by a high damping system so that it becomes indiscernible. Under fault conditions, results indicate that even for non-resonating system conditions care is needed to avoid catastrophic damages ...
... possibility for resonance under steady state unbalance, however in some cases actual resonance may be masked by a high damping system so that it becomes indiscernible. Under fault conditions, results indicate that even for non-resonating system conditions care is needed to avoid catastrophic damages ...
Micro SIL Reed Relays
... relays that stack on 0.15 inches x 0.6 inches pitch. The adjacent column gives further details of the device types available. These relays require little more than half the board area of the more usual 0.2 x 0.8 inch devices, this allows around 80 percent more relays onto your board. These are the i ...
... relays that stack on 0.15 inches x 0.6 inches pitch. The adjacent column gives further details of the device types available. These relays require little more than half the board area of the more usual 0.2 x 0.8 inch devices, this allows around 80 percent more relays onto your board. These are the i ...
Protective Devices Maintenance as it Applies to the Arc/Flash
... role in the power protection scheme. – Used to isolate and protect both people and devices from high voltage and current. ...
... role in the power protection scheme. – Used to isolate and protect both people and devices from high voltage and current. ...
Activity 3A
... Relays require a given current for pull-in. Once they pull in, less current is required to hold them in the closed position. This is because the air gap is eliminated when the armature pulls in. The air has quite a bit more reluctance than the iron circuit and eliminating it means that less mmf is r ...
... Relays require a given current for pull-in. Once they pull in, less current is required to hold them in the closed position. This is because the air gap is eliminated when the armature pulls in. The air has quite a bit more reluctance than the iron circuit and eliminating it means that less mmf is r ...
MICROOPTO Presentation - Weidmuller B2B Portal
... Protection against transients and Reliable switching and product ...
... Protection against transients and Reliable switching and product ...
Neutral Grounding Systems
... The process of connecting neutral point of 3-phase system to earth (i.e. soil) either directly or through some circuit element (e.g. resistance, reactance etc.) is called Neutral grounding. Neutral grounding has been in practice in many systems all over the world, but there are some systems, which s ...
... The process of connecting neutral point of 3-phase system to earth (i.e. soil) either directly or through some circuit element (e.g. resistance, reactance etc.) is called Neutral grounding. Neutral grounding has been in practice in many systems all over the world, but there are some systems, which s ...
#2093
... The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information th ...
... The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information th ...
T3100 Voltage Relay
... combined functions • Visual indication of power, pick-up and relay tripping on both relays • High precision digital countdown timer for delayed output • Accepts high supply voltage variations: 70 - 120% • Cost effective and highly reliable compact design • 50 hours burn-in before final test • Opera ...
... combined functions • Visual indication of power, pick-up and relay tripping on both relays • High precision digital countdown timer for delayed output • Accepts high supply voltage variations: 70 - 120% • Cost effective and highly reliable compact design • 50 hours burn-in before final test • Opera ...
Battery Disconnect Function
... batteries in the event it is desired to start the vehicle with a dead chassis battery. In addition, the relay controls charging of the batteries as a set. When the auxiliary start button at the driver’s console is pressed, a ground will appear at P1-1. When not pressed, P1-1 is approximately +12vdc, ...
... batteries in the event it is desired to start the vehicle with a dead chassis battery. In addition, the relay controls charging of the batteries as a set. When the auxiliary start button at the driver’s console is pressed, a ground will appear at P1-1. When not pressed, P1-1 is approximately +12vdc, ...
DESIGN AND IMPLEMENTATION OF PROGRAMMABLE
... breakers such as MCBs take longer time to trip. Therefore, for sensitive loads it is very important to activate the tripping mechanism at the shortest possible time, preferably instantaneously. This project is demonstrates fast tripping mechanism as against the slow one like MCB. Electronic circuit ...
... breakers such as MCBs take longer time to trip. Therefore, for sensitive loads it is very important to activate the tripping mechanism at the shortest possible time, preferably instantaneously. This project is demonstrates fast tripping mechanism as against the slow one like MCB. Electronic circuit ...
DS11 Series SSR For DC Loads up to 2A @... Kilovac Solid State Relays Product Facts
... 1.2 terminal input configuration is compatible with CMOS or open collector TTL (with pull-up resistor). For Vcc levels above 6Vdc, a series limiting resistor is required. See Fig. 2 for resistor value. Use standard resistor value equal to or less than value from the curve. 2.Input transitions to be ...
... 1.2 terminal input configuration is compatible with CMOS or open collector TTL (with pull-up resistor). For Vcc levels above 6Vdc, a series limiting resistor is required. See Fig. 2 for resistor value. Use standard resistor value equal to or less than value from the curve. 2.Input transitions to be ...
Instruction Sheet for S500-A5
... previously. These modules accept your 2 wire switched input, (12V or 24V) and applies this input simultaneously to both the solenoid pull-in and hold windings. After a short period of time (.4 -.6 sec.), the module timer/relay removes the power from the pull-in coil and leaves only the hold-in coil ...
... previously. These modules accept your 2 wire switched input, (12V or 24V) and applies this input simultaneously to both the solenoid pull-in and hold windings. After a short period of time (.4 -.6 sec.), the module timer/relay removes the power from the pull-in coil and leaves only the hold-in coil ...
Protective relay
In electrical engineering, a protective relay is a device designed to trip a circuit breaker when a fault is detected. The first protective relays were electromagnetic devices, relying on coils operating on moving parts to provide detection of abnormal operating conditions such as over-current, over-voltage, reverse power flow, over- and under- frequency. Microprocessor-based digital protection relays now emulate the original devices, as well as providing types of protection and supervision impractical with electromechanical relays. In many cases a single microprocessor relay provides functions that would take two or more electromechanical devices. By combining several functions in one case, numerical relays also save capital cost and maintenance cost over electromechanical relays. However, due to their very long life span, tens of thousands of these ""silent sentinels"" are still protecting transmission lines and electrical apparatus all over the world. An important transmission line or generator unit will have cubicles dedicated to protection, with many individual electromechanical devices, or one or two microprocessor relays.The theory and application of these protective devices is an important part of the education of an electrical engineer who specializes in power systems. The need to act quickly to protect circuits and equipment as well as the general public often requires protective relays to respond and trip a breaker within a few thousandths of a second. In these cases it is critical that the protective relays are properly maintained and regularly tested.