Product Overview:
GGJ low-voltage capacitor cabinet/reactive power automatic compensation device is widely used in electric power, chemical industry, shipping, subway, civil aviation, automobile, construction, metallurgy, textile and many other fields. We strive to provide effective value to every customer, ensuring the quality of all products and maximum customer satisfaction is our guiding principle in designing and manufacturing products. Improving power quality and reducing electricity costs will be our consistent service principle.
Scope of application:
There are no large capacity nonlinear loads in the system
Frequent load changes
Three phase load imbalance requires phase separation compensation:
Normal usage conditions:
Environmental temperature: -50℃～+40℃, and the average temperature within 24 hours does not exceed+36℃.
Altitude: not exceeding 2500m
Relative humidity: not exceeding 50% when the ambient air temperature is+40℃.
At lower temperatures, there can be higher relative humidity (such as 90% at+20 ℃). Considering the temperature changes, moderate condensation can be generated. When installing equipment, the inclination with respect to the vertical plane should not exceed 5℃.
The equipment should be installed in a place without severe vibration, impact, and corrosion.
Note: If the above conditions cannot be met and the user has special requirements, they can negotiate with our company to resolve them.
Working principle:
The GGJ series low-voltage capacitor cabinet/reactive power automatic compensation device consists of CVT-18 series measurement and control device, MIT series dynamic compensation module, busbar system, protection system, cabinet, etc. The measurement and control unit measures the reactive power, and based on pre-set parameters, uses the HKT non-contact fast surge free switching device to perform non step automatic switching, accurately implementing three-phase and phase separated reactive power compensation.
1. Measurement and control highly intelligent
The measurement and control device adopts DSP technology, which can measure different types of parameters such as frequency, voltage, current, active power, reactive power, power factor, harmonic components, etc. It can also achieve unequal step automatic switching, harmonic over limit, voltage over limit, system oscillation alarm and protection functions.
2. Economic security and reliability
Adopting GGJ series compensating capacitors, built-in discharge resistors, and advanced technologies such as self-healing and pressure-sensitive circuit breaker technology, it has a long lifespan, strong overload capacity, and can prevent accidents from deepening as much as possible. It is pollution-free, non explosive, and non combustible.
3. Zero crossing rapid switching technology
The zero crossing switching technology is adopted to avoid the surge surge phenomenon caused by traditional contactor switching, greatly extending the service life of capacitors, especially in load environments with rapid voltage changes caused by reactive power, reducing voltage fluctuations, maintaining a balanced voltage level, improving transmission capacity, and reducing losses.
4. Modularization
Adopting modular production technology, it has strong completeness and is conducive to system transformation.
Ordering Notice (to be specified when placing an order):
1. Main circuit scheme number, purpose, single line system diagram, arrangement diagram, and distribution room layout plan, etc.
2. Schematic diagram and terminal arrangement diagram of auxiliary circuit wiring.
3. The model, specifications, and quantity of electrical components inside the switchgear.
4. Requirements for control, measurement, and protection functions of switchgear, as well as requirements for other locking and automatic devices.
5. If a busbar bridge connection is required between switchgear or incoming cabinets, specific requirements such as the rated current carrying capacity of the busbar bridge, the span of the busbar bridge, and the height above ground should be provided.
When attachments and spare parts are needed, the type and quantity should be specified.
7. Switchgear is used in special environmental conditions, and other special requirements should be specified in detail when ordering.
