145kV Gas Insulated Switchgear (GIS) is a high-voltage switchgear system used in 132/138kV class transmission networks. It uses SF6 gas or alternative environmentally friendly insulating gases as the insulation medium and combines major high-voltage equipment—including circuit breakers, disconnectors, earthing switches, current transformers, voltage transformers, and bus...
24kV Indoor Voltage Transformer (VT), also known as an Indoor Potential Transformer (PT), is an instrument transformer designed to step down medium-voltage system voltages up to 24 kV into standardized low voltages for metering, protection, monitoring, and control. These transformers are commonly installed in indoor metal-clad switchgear, Ring Main Units (RMUs), and medi...
362kV Capacitor Voltage Transformer (CVT), also known as a Capacitive Voltage Transformer or Capacitor Potential Transformer (CPT), is an extra-high-voltage (EHV) instrument transformer designed for 330kV-class transmission systems. It reduces high transmission voltages to standardized low-voltage outputs used for metering, protection, control, synchronization, and power...
123kV Capacitor Voltage Transformer (CVT), also called a Capacitive Voltage Transformer or Capacitor Potential Transformer (CPT), is a high-voltage instrument transformer used in 110kV-class transmission systems to reduce high system voltages to standardized low-voltage outputs for metering, protection, control, synchronization, and automation applications. A CVT uses a...
123kV Inductive Voltage Transformer (IVT), also known as a Potential Transformer (PT) or Voltage Transformer (VT), is a high-voltage instrument transformer designed to accurately reduce transmission system voltages up to 123 kV to standardized low-voltage outputs for metering, protection, monitoring, and control. It provides galvanic isolation between the high-voltage ne...
145 kV Current Transformer (Hair-pin Type) is a high-voltage outdoor instrument transformer used in 132 kV and 145 kV air-insulated substations (AIS). It accurately converts high primary currents into standardized secondary currents (1 A or 5 A) for protective relays, energy metering, fault recording, and substation automation. The hair-pin type features an integral U-sh...
36 kV Current Transformer (Hair-pin Type) is a medium-voltage instrument transformer designed to measure high primary currents and provide scaled, isolated current signals for metering, protection, and control. The term "hair-pin type" refers to the shape of the primary conductor, which is bent like a hairpin (U-shaped), forming an integral primary winding through the tr...
Semi-Pantograph Disconnector (Semi-Pantograph Isolator) is a high-voltage disconnector used in air-insulated substations (AIS) to provide visible electrical isolation of transmission equipment. It combines features of a conventional disconnector and a pantograph mechanism, making it particularly suitable for substations with restricted space or where equipment is mounted...
Reliable Emergency Communication Where Safety Matters Most As coastal tourism continues to grow worldwide, public safety infrastructure has become a critical concern for municipalities, beachfront authorities, resorts, marinas, and smart city planners. Whether responding to medical emergencies, drowning incidents, criminal activities, or lost children, rapid access to em...
Overview: It is mainly used for the reciprocating compression test of foam polymer materials, and measuring the residual deformation rate, so as to know the material's dynamic fatigue characteristics. The number of tests, the display force value and the impact frequency can be freely set. The whole machine is easy to operate and easy to maintain. With high reliability, a...
1.Machine model and name: YAW-300S automatic exhaust duct compression testing machine 2.Application: This testing machine is mainly used for the test of pressive strength of duct finished products, which is applied to the standard for the JG/T194-2006. 3.Main technical specifications: 3.1. Max. Test force: 300kN 3.2. Test force measuring range: 4%-100%FS 3.3. Test fo...
When engineers need a lightweight material with exceptional strength, impact resistance, and durability, Kevlar netting has become one of the preferred reinforcement solutions across advanced industrial applications. Unlike traditional metal mesh or fiberglass reinforcement materials, Kevlar netting combines high tensile strength, low weight, flexibility, and excellent ...
A Medium Voltage Fault Current Limiter (MV Fault Current Limiter / UFCL) is a protection device designed to rapidly reduce excessive short-circuit currents in medium-voltage electrical networks. It limits fault current magnitude within the first few milliseconds after a fault occurs, helping protect switchgear, transformers, cables, generators, and distribution equipment...
An AAAC (All Aluminum Alloy Conductor) is an overhead electrical conductor made entirely from aluminum alloy strands. It is mainly used for medium-voltage and high-voltage overhead distribution and transmission lines where high strength, corrosion resistance, and reduced weight are required. AAAC was developed as an alternative to AAC (All Aluminum Conductor) and ACSR (...
A Medium Voltage Cable (MV Cable) is a power cable designed to transmit and distribute electrical energy at medium voltage levels, typically from 1 kV up to 35 kV (sometimes up to 69 kV depending on regional classification). MV cables are widely used in distribution networks, industrial facilities, renewable energy plants, substations, and utility power systems. MV cabl...
A Static Var Generator (SVG), also known as a STATCOM (Static Synchronous Compensator), is a power electronic-based FACTS (Flexible AC Transmission System) device used for dynamic reactive power compensation, voltage regulation, power factor correction, and harmonic mitigation. Unlike an SVC, which uses thyristor-controlled reactors and capacitor banks, an SVG uses a vo...
A Static Var Compensator (SVC) is a shunt-connected FACTS (Flexible AC Transmission System) device used to provide fast dynamic reactive power compensation in electrical power systems. It regulates system voltage by rapidly generating or absorbing reactive power (MVAR) through controlled switching of reactors and capacitor banks using thyristors. SVCs are widely used in...
An Active Harmonic Filter (AHF) is a power electronic device used to detect and eliminate harmonic currents in electrical power systems. It injects an equal and opposite compensation current into the network to cancel unwanted harmonics, improve power quality, and reduce distortion. Unlike passive harmonic filters that use fixed combinations of capacitors and reactors, ...
A Line Trap (also called a Wave Trap or Carrier Blocking Coil) is a high-voltage power system component used in Power Line Carrier Communication (PLCC) systems. It is installed in series with a transmission line to block high-frequency communication signals from entering unwanted parts of the power network while allowing 50/60 Hz power frequency current to pass normally....
An Iron Core Reactor is an electrical reactor (inductor) that uses a magnetic iron or steel core to increase inductance and magnetic flux concentration. It is designed to provide controlled inductive impedance for reactive power compensation, current limiting, harmonic filtering, and voltage regulation in power systems. Unlike an Air Core Reactor, the iron core provides...
An Air Core Reactor (ACR) is a type of electrical reactor (inductor) that uses a coil winding without an iron or steel magnetic core. Its inductance is produced by the magnetic field generated in the surrounding air. It is widely used in transmission and distribution systems for current limiting, harmonic filtering, reactive power control, and power quality improvement. ...
A Low Voltage Motor Control Center (MCC) is a type of low-voltage switchgear assembly designed to centrally control, protect, monitor, and distribute electrical power to multiple motors and associated loads. It integrates motor starters, circuit breakers, protection devices, control equipment, and automation components into a single modular enclosure. LV MCCs are widely...
36kV Air Insulated Medium Voltage (MV) Switchgear (AIS) is a metal-enclosed switchgear system designed for 36kV distribution networks (maximum system voltage 40.5kV). It uses air insulation between energized components and grounded metal compartments, with vacuum circuit breakers (VCBs) typically used for switching and protection. 36kV AIS is commonly applied in utility...
24kV Air Insulated Medium Voltage (MV) Switchgear (AIS) is a metal-enclosed switchgear assembly designed for 24kV distribution systems. It uses air as the insulation medium between live conductors and grounded metal compartments. Vacuum circuit breakers (VCBs) are commonly used for switching and protection, providing reliable interruption of load and short-circuit curren...
12kV Air Insulated Medium Voltage (MV) Switchgear (AIS) is a metal-enclosed switchgear assembly used in medium-voltage power distribution systems. It utilizes air as the primary insulation medium between energized conductors and grounded metal enclosures, while vacuum circuit breakers (VCBs) are commonly used for switching and fault interruption. The equipment provides s...
36kV Gas Insulated Ring Main Unit (RMU) is a compact, metal-enclosed medium-voltage switchgear designed for 36kV (40.5kV maximum system voltage) distribution networks. It integrates switching, protection, isolation, and control functions within a sealed gas-insulated enclosure. The primary live parts are housed in a stainless-steel tank filled with SF6 gas or environment...
24kV Gas Insulated Ring Main Unit (RMU) is a factory-assembled, metal-enclosed medium-voltage switchgear designed for 24kV distribution networks. It provides reliable switching, protection, sectionalizing, and fault isolation while maintaining uninterrupted power supply to healthy sections of the network. The primary live components are enclosed in a sealed stainless-ste...
12kV Gas Insulated Ring Main Unit (RMU) is a compact, factory-assembled medium-voltage switchgear used in secondary power distribution networks. It is designed to provide switching, protection, isolation, and sectionalizing of 12kV distribution feeders while ensuring high reliability and minimal maintenance. All energized components are enclosed in a sealed gas-insulated...
1. General Description 36kV Gas Insulated Medium Voltage Switchgear (C-GIS), also known as Compact Gas Insulated Switchgear, is a medium-voltage metal-enclosed switchgear system designed for 30kV/33kV/36kV distribution and sub-transmission networks. C-GIS uses a sealed gas-insulated enclosure to protect primary components such as the vacuum circuit breaker (VCB), busba...
1. General Description 24kV Gas Insulated Medium Voltage Switchgear (C-GIS), also known as Compact Gas Insulated Switchgear, is a medium-voltage metal-enclosed switchgear system designed for 20kV/22kV/24kV distribution networks. C-GIS combines gas insulation technology with vacuum circuit breaker (VCB) interruption technology to provide a compact, reliable, and environ...
1. General Description 12kV Gas Insulated Medium Voltage Switchgear (C-GIS), also known as Compact Gas Insulated Switchgear, is a medium-voltage metal-enclosed switchgear system designed for distribution networks. It uses a gas-insulated compartment structure to provide reliable insulation and arc protection while maintaining a compact footprint. Unlike conventional Ai...
1. General Description 362kV Hybrid Gas Insulated Switchgear (HGIS) is an extra-high-voltage switching system that combines the advantages of Gas Insulated Switchgear (GIS) and Air Insulated Switchgear (AIS) for high-capacity transmission networks. The HGIS design integrates major primary equipment—including the circuit breaker, disconnectors, earthing switches, curren...
1. General Description 170kV Hybrid Gas Insulated Switchgear (HGIS) is an extra-high-voltage switching system that combines the compact design of Gas Insulated Switchgear (GIS) with the flexibility and lower cost of Air Insulated Switchgear (AIS). The primary switching equipment—such as the circuit breaker, disconnectors, earthing switches, current transformers (CT), a...
Glass Disc Insulator, also known as a Toughened Glass Suspension Insulator or Glass Cap-and-Pin Insulator, is a high-voltage insulator used for overhead transmission and distribution lines to electrically isolate conductors from towers and support structures while withstanding mechanical tensile loads. It is manufactured from toughened (tempered) glass, combined with me...
Porcelain Station Post Insulator, also known as a Pedestal Insulator or Substation Post Insulator, is a high-voltage electrical insulation component used in outdoor substations and switchyards to support and electrically isolate busbars, disconnectors, circuit breakers, instrument transformers, and other high-voltage equipment from grounded structures. It is manufacture...
Porcelain Housing Arrester, also known as a Porcelain Surge Arrester or Porcelain Metal Oxide Surge Arrester (MOA), is a protective device used in electrical power systems to protect transformers, switchgear, transmission lines, and other high-voltage equipment from lightning surges and switching overvoltages. It uses zinc oxide (ZnO) metal oxide varistor (MOV) elements...
