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What is the purpose of a thyrector diode connected across normally open contacts?
Wiki User
∙ 15y ago
To suppress transients from switching currents to possible inductive loads.
Wiki User
∙ 15y ago
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How does emergency light switch work?
An emergency light switch uses a relay. A relay has an 5 terminals. The firs two terminals are connected to a flowing current (current flows when there is a normal electricity) The next 3 terminals are the common, the normally on, and normally off. One of the battery terminal is connected to the common, and the other one terminal of the battery is connected to one terminal of the light bulb(which has two terminals) then the other terminal of the light bulb is connected to the normally on terminal of the relay. When current flows to the first two mentioned terminals of the relay, the circuit of the battery and light is cut off or not connected. But when the current is off, this will switch on the normally-on terminal thus current will flow from the battery to the light bulb, that will shed light. ;) on an emergency situation. note: The normally off is not use. And may be use for some purpose.
What is the purpose of the holding circuit in a magnetic motor starter?
It hold the main contacts closed until the control circuit through the interlock is broken.
What is the purpose of a seal-in contact?
This is a small electromagnet whose coil is in series with the relay contacts and whose contact is in parallel with them. The electromagnet is energized, closing its contacts in parallel with the relay contact as soon as the trip coil is energized, and drops out when the circuit breaker opens.
What is the purpose of connecting fuse in both positive and negative terminals?
Because if it is not connected to both it is not a full circuit and therefore if it is not a full circuit then the fuse can't protect you.
How relay used for protection purpose?
Relay are operated by small current /voltage connected to Secondary side of Current Transformer and /or Voltage Transformer. The signal stimulates the magnetic substance nearby with the attracting force. This closes or opens the circuit being used in protection purpose.
Can you be sent off in netball after 3 contacts?
No, unless they were agressive, on purpose contacts
What was the purpose of a roman bathhouse?
The purpose was twofold. One to get clean and two to have social contacts. Everyone went to the baths.
What is the purpose of highlighted words?
the purpose is normally vocabulary words
What is the purpose of the purpose of the sump What was normally placed over it?
A duckboard
What is the purpose of the address book?
The purpose of an address book is something where you store all your contacts names so it is easy for you to find :)
How does emergency light switch work?
An emergency light switch uses a relay. A relay has an 5 terminals. The firs two terminals are connected to a flowing current (current flows when there is a normal electricity) The next 3 terminals are the common, the normally on, and normally off. One of the battery terminal is connected to the common, and the other one terminal of the battery is connected to one terminal of the light bulb(which has two terminals) then the other terminal of the light bulb is connected to the normally on terminal of the relay. When current flows to the first two mentioned terminals of the relay, the circuit of the battery and light is cut off or not connected. But when the current is off, this will switch on the normally-on terminal thus current will flow from the battery to the light bulb, that will shed light. ;) on an emergency situation. note: The normally off is not use. And may be use for some purpose.
What is the purpose of a temperature unit sensor will it make your radiator fan stay on constantly?
The temperature sensor you're asking about is a device that detects a temperature above a specific point, usually somewhere around 180F, then closes the contacts of a switch. The switch can directly run a motor or it may be connected to a relay. If the contacts of the temperature sensor switch become damaged they can weld together and the switch will stay on constantly.
What is it called when two or more computer and other devices that are connected for the purpose of sharing data and programs?
Two or more computers that are connected for the purpose of sharing data and programs is called a network.
What purpose does gold serve in the world?
Jewellery, electrical contacts, corrosion resistant coating, reflective foil.
What is the purpose of a zener diode when placed near the output in a common power suplly?
The purpose of a zener diode connected at the output of a common supply is to stabilize the output voltage in case a load is connected to it.
What is the purpose of the Emergency notification service?
The purpose of Emergency Notification Services (EMS) are to send out a pre-recorded message to a designated list of emergency contacts immediately, when needed.
What is the purpose of a resistor connected in the series with the load resistor?
Divide the voltage
