2027-25-SM-RP

Series:	2027
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	250V
Impulse Discharge Current (8/20µs):	10000A (10kA)
Tolerance:	±15%
Number of Poles:	2
Fail Short:	No
Mounting Type:	Surface Mount
Package / Case:	2-SMD Cylinder Square End

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Introduction:

Gas Discharge Tube Arresters (GDT) are an important part of electrical protection systems and this article will explore the applications and working principles of the 2027-25-SM-RP GDT. This device is often used for surge protection, which allows it to protect electrical equipment from voltage transients and surges. This article will also look at the design and operation of the 2027-25-SM-RP GDT and its components.

Design of the 2027-25-SM-RP Arrester:

The 2027-25-SM-RP GDT is a three-phase arrester with a voltage rating of 25kV. It has a surge current capacity of 150kA and a voltage and current sharing capability of up to 20kV. The device consists of a surge current carrying non-linear capacitance block, a resistor and a ground wire. The device also features a voltage and current sharing mechanism that allows the surge current to be evenly distributed across multiple line phases. The surge current protection device is protected with a single protection circuit that acts like a protective shield in case of a surge. The 2027-25-SM-RP GDT is designed with a minimum breakdown voltage of 140V and a minimum arcing current of 10mA.

Operation of the 2027-25-SM-RP Arrester:

The 2027-25-SM-RP GDT operates in a two-stage manner, known as voltage and current sharing. The first stage is referred to as the \'protection stage\', which limits the voltage across the arrester. When a voltage transient or surge occurs, the non-linear capacitance block of the device will absorb the surge energy and limit the rise in voltage across the GDT. After the energy has been absorbed by the non-linear capacitance block, the device\'s resistor will allow the remaining energy to be discharged safely. During this time, the protection circuit will react to the high current levels and facilitate the sharing of the surge current among multiple line phases, thus preventing overload of the protection circuit.

The second stage is known as the \'relaxation stage\'. In this stage, the energy that was previously stored in the non-linear capacitance block of the GDT is slowly released and dissipated. This helps ensure the device remains at its protected voltage level. The resistor in the device will also ensure that the remaining energy is discharged safely and the protection circuit will prevent further damage.

Applications and Benefits of the 2027-25-SM-RP Arrester:

The 2027-25-SM-RP GDT is designed to provide protection from surges and transients. This device is often used in industrial and infrastructure electrical systems, such as substation equipment, solar inverters, telecommunications equipment, and protection relays. The high surge current capacity and voltage and current sharing capabilities of the 2027-25-SM-RP allow it to provide reliable surge protection to these vulnerable pieces of equipment. Furthermore, the surge limiting function of the device allows it to protect the equipment from damage and ensure that it continues to operate at peak performance. The device is also highly reliable and has a long life span, making it a cost-effective surge protection solution.

Conclusion:

The 2027-25-SM-RP GDT is an important piece of surge protection equipment that is widely used in many electrical systems. The device is designed to absorb and disperse surge energy, as well as provide reliable voltage and current sharing protection. The 2027-25-SM-RP has a high surge current capacity and is highly reliable, making it a cost-effective surge protection solution.

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