1. Introduction of Low Voltage Switch Cabinet
ZTelec Group low voltage switch cabinet is designed, tested, and constructed to provide superior power distribution, power monitoring, and control. Utilized in a range of applications like industrial, institutional, critical power, and commercial, the switchgear solution is created for your world-class operations.
Generally electrical switchgear rated up to 1KV is termed as low voltage switchgear. The term LV Switchgear includes low voltage circuit breakers, switches, off load electrical isolators, HRC fuses, earth leakage circuit breaker, miniature circuit breakers (MCB) and molded case circuit breakers (MCCB) etc i.e. all the accessories required to protect the LV system. The most common use of LV switchgear is in LV distribution board.
2. Normal working conditions
1. The ambient air temperature does not exceed 40℃, and the average value measured within 24h does not exceed 35℃, the lowest ambient air temperature is -5℃,
2. The altitude of the installation site does not exceed 2000m
3. The surrounding air is not significantly polluted by dust, smoke, corrosive and soluble gases, steam or salt spray;
4. Atmospheric conditions: The air is clean, and the relative humidity should not exceed 50% when the maximum temperature is +40℃. At a lower temperature, a higher relative humidity is allowed. For example: The relative humidity is 90% at +20°C. However, it should be considered that due to temperature changes, moderate condensation may occasionally occur;
5. When the equipment is installed, the inclination from the vertical does not exceed 5°;
6. The equipment should be installed in a place without severe vibration and impact.
3. Types of Low Voltage Switch Cabinet
GCS type low voltage withdrawable switch cabinet
Used in power distribution systems in power plants, petroleum, chemical, metallurgy, textiles, high-rise buildings and other industries. In large-scale power plants, petrochemical systems and other places with a high degree of automation and computer interfaces, as a three-phase alternating current frequency of 50 (60) Hz, rated working voltage is 380V (400), (660), rated current 4000A and below Low-voltage complete set of power distribution equipment used in power distribution, centralized motor control, and reactive power compensation in power generation and power supply systems.
GCK type withdrawable switch cabinet
GCK type low-voltage withdrawable switchgear (hereinafter referred to as switchgear) is suitable for control and distribution systems with AC 50(60)HZ and rated working voltage of 660V and below. It is composed of two parts: the power distribution center (PC) cabinet and the motor control center (MCC). As power distribution equipment such as power distribution motor control and lighting.
MNS low-voltage withdrawable switchgear
MNS low-voltage withdrawable switchgear (hereinafter referred to as switchgear) is a fully assembled low-voltage switchgear with flexible structure. Modularity, multi-function, reliable and safe performance. Applicable to metallurgy, petroleum, chemical, industrial and mining enterprises and infrastructure and other fields, as a three-phase AC frequency of 50 (60) Hz, rated working voltage 380V (400), (600V), rated current below 4000A power generation and power supply system In all low-voltage systems such as power distribution, centralized motor control and so on.
The switchgear has undergone a comprehensive type test and passed the national compulsory product 3C certification. This product complies with GB7251.1 "Low-Voltage Switchgear and Control Equipment", IEC60439-1 "Low-Voltage Switchgear and Control Equipment" and other standards.
GGD fixed switchgear
GGD fixed switchgear (hereinafter referred to as power distribution cabinet) is suitable for power users such as power plants, substations, industrial and mining enterprises as AC 50Hz (60Hz), rated working voltage 380V (400), (660), rated working current to The 3150A power distribution system is used for power conversion, distribution and control of power, lighting and power distribution equipment. The product has high breaking capacity, good dynamic thermal stability, and rated short-time withstand current up to 50KA. Flexible electrical scheme, convenient combination, strong practicability, novel structure, high protection level, etc. This product is one of the representative products of my country's assembled and fixed panel switchgear.
PGL low-voltage fixed switchgear
PGL low-voltage fixed switchgear (hereinafter referred to as power distribution panel), used in power plants, substations, industrial and mining enterprises, frequency 50Hz, rated voltage 380 (400) V and below low-voltage power distribution system, as power, lighting power distribution For use.
4.This product complies with GB7251.1 "Low-Voltage Switchgear and Control Equipment", IEC60439-1 "Low-Voltage Switchgear and Control Equipment" and other standards.
|Low-voltage switch cabinet technical parameters|
|GCS Low-voltage withdrawable switch cabinet||GCK Low-voltage withdrawable switch cabinet||MNS Low-voltage withdrawable switch cabinet|
|main circuit Rated voltage||V||
|Auxiliary circuit rated voltage||V||AC 220，380（400） DC 110，220||660|
|Rated insulation voltage||v||660 （1000）|
|Rated current||Horizontal Busbar||A||≤4000||≤4000||630-5000|
|Busbar rated short-time withstand current||KA/0.1s||50, 80||50, 80||---|
|Busbar rated peak withstand current||KA/0.1s||105, 176||---||---|
|Rated short-time withstand current effective value (1 second)/peak value||Horizontal Busbar||1s/KA||---||---||50-100/105-250|
|Power frequency test voltage||main circuit||V/1min||2500||2500|
|Busbar||Three-phase four-wire system||A.B.C.NPE||A.B.C.PEN|
|Three-phase five-wire system||A.B.C.N.PE||A.B.C.P.EN|
5.Certification of Low Voltage Switch Cabinet: