Dynamic Reactive Power Compensation

ZRTBBZ outdoor box type automatic reactive power compensation complete set device is a new product based on ZRTBB dynamic reactive power compensation which adopts preinstalled box deformation shell to adapt to outdoor use. Adopts vacuum contactor, load switch or vacuum circuit breaker and voltage reactive power automatic control device to realize the automatic cutting and control of the capacitor group, to automatically adjust the bus voltage and reactive power compensation, improve the voltage qualified rate and power factor, for the purpose of safe and reliable, convenient, flexible and can make full use of capacitor capacity, to increase efficiency. According to the total amount of reactive power to be compensated, the whole group can be automatically switched on and off, and several units with equal or unequal capacity can be designed according to the requirements and needs. Equipped with multi-functional automatic controller, the capacitor bank can be switched on and off according to the voltage and reactive power, so as to achieve the purpose of reasonable regulation of voltage and reactive power compensation.

The device is suitable for transformer substation 220kV and below in power plant, electric power bureau and large factories and mining enterprises, 6~10kV power supply system, as reactive power automatic compensation control, according to the measured voltage and reactive power or power factor automatically switch capacitor bank.

1. Outdoor use.

2. The altitude shall not exceed 1000m; (More than 1000m will be required)

3. Ambient air temperature -25 ~ 40° C;

4. Relative mixing: the daily average is not more than 95%, the monthly average is not more than 90%;

5. The surrounding air is free from serious pollution such as corrosive gas and water vapor, and there is no flammable gas, fire and explosion danger.

6. Places without frequent severe vibration

7. The network connected to the installation site or the bus voltage power supply side should have no large waveform distortion and no influence of higher harmonic sources, and the voltage waveform distortion rate and harmonic content should not exceed the provisions of GB/T14549-93 "Voltage Quality, Harmonics in public Power grid".

ZRTBBZ type high voltage shunt capacitor box type reactive power compensation device is outdoor box type. Box front and rear double doors, eaves box top, adapt to wind and rain, cold, And high temperature environment. Box body can use protective color plate, coated aluminum zinc plate, stainless steel plate or ordinary steel plate, front and rear open double door structure.

The device is composed of more than two capacitor banks and a circuit breaker (switch) cabinet. Capacitor bank is cabinet type structure, equipped with vacuum contactor (or vacuum circuit breaker), capacitor unit, fuse, discharge coil, zinc oxide arrester and series reactor. The vacuum contactor (or vacuum circuit breaker) is used as the switching equipment of shunt capacitor bank, and the connecting busbar is tinned copper bar.

1. Capacitor bank fit can be composed of equal or unequal capacity, easy to realize reasonable compensation;

2. Simple structure, miniaturization of products, building block type combination, low investment;

3. Due to the use of grouping automatic switching, high utilization rate of capacitor;

4. Due to the adoption of microcomputer protection measurement and control and automatic switching device, the protection and control functions are complete and the degree of automation is high.

5. With RS232 or RS485 serial communication interface, the substation comprehensive automation system can be networked with other monitoring devices in the substation through the communication interface to meet the requirements of unattended or less attended substation, centralized control and other operation and management modes.

6. Lockout requirements: the incoming cabinet is equipped with grounding switch and circuit breaker mechanical interlock and electrical interlock, and each capacitor is equipped with electromagnetic lock and door lock. Reliable safety protection. Box door and front door in the closed state, normal closing or operation; If open at will, the main switch immediately jump between; The front and back doors of the box are also equipped with padlocks to strengthen management.

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