Heavy Duty Power Factor Capacitor

Genuine Power Heavy-Duty Power Factor Capacitor can be used in harsh environments. There is a thermal protection switch (to be connected to the secondary circuit) that trips when the capacitor temperature exceeds 75°C and resets when the temperature drops to 40°C.

There is no overpressure disconnector equipped in the capactior and requires no additional installation. Its enclosure, constructed from 1.2 mm thick steel plate, features an explosion-resistant structure, which is why it is referred to as an anti-explosion capacitor also.

 

 

 

 

Parameter	Specification
Loss Tangent (tanδ)	Below 0.001 at rated power frequency voltage.
Capacitance Tolerance	The difference of capacitance shall be within -5% ~+5%. For three-phase capacitors, the ratio of the maximum capacitance to the minimum capacitance measured between any two line terminals shall ＜ 1.02.
Withstand Voltage	Between terminals: 2.15 Un at power frequency, 2 seconds. Terminal to case: rated voltage ≤ 600V: 3.6 kV, 5 seconds;
Maximum Allowable Overvoltage	1.15 Un, ≤ 8 hours within any 24-hours period.
Maximum Allowable Overcurrent	1.5 In.
Self-discharge Characteristic	The capacitor is equipped with discharge device that reduce the residual voltage from √2 Un to ≤75 V within 3 minutes after power supply disconnected.

 

 

• Installation Environment：

-Suitable for indoor installation at an altitude of ≤ 2000 meters.
-The working environment temperature range is from -25°C to +55°C, with relative humidity ≤ 85%.
-Installation should be avoided in places exposed to direct sunlight, rain splashing, too much dust, or severe vibrations.
-When installation,ensure the distance between capacitors must be ＞30 millimeters.
-During hot seasons, ensure good ventilation and heat dissipation conditions.

 

• System Compatibility

-Before installation, it is necessary to assess the impact of voltage rise when power-on, and avoid the equipment to operate under long-term overvoltage conditions.

- Check the supply voltage waveform and grid characteristics prior to installation. If harmonic sources (e.g., large rectifiers, frequency converters, medium-frequency furnaces) are present, take corresponding measures to limit their impact.

- When connecting capacitors in parallel with induction motors, it is recommended to select capacitors with a rated current ＜ 90% of the motor's no-load current.

 

• Operation and Maintenance

- Use flexible copper wires for connect the line terminals and ground terminals to ensure good contact.

- Users are advised to inspect terminals regularly to prevent damage due to poor contact.

- The interval between power-off and re-energization shall be ＞ 3 minutes (i.e., the self-discharge time) to prevent possible excessive overvoltage that could damage the capacitor.

- Capacitors should compatible with CKJ-type low-voltage vacuum AC contactors.

- The rated current of the contactor should be 2.0 to 2.5 times that of the rated current of the controlled capacitor.

 

 

Installation size of different capacity of 460V Genuine Power Heavy-Duty Power Factor Capacitor:

Note: above parameter is for reference only. It can be customized according to customer requirements. Jineng Power has the authority to modify the data.

 

Production procedure of the Heavy Duty Power Factor Capacitor:

 

1. Users must provide parameters such as product rated voltage and fluctuation voltage, rated capacitance, and number of phases.

2. Installation location and usage: Such as in the distribution room and near the frequency converter cabinet, etc., they are helpful for assessing the harmonic conditions of the environment.

3. Total compensation capacity required and allocation (if multiple groups are switched on and off).

4. Is it necessary to purchase the equipment in a complete set, including reactors, controllers, and switching devices?

5. Environmental temperature, altitude (such as ≤ 2000m), Protection level (such as IP20), etc.

6. Is filtering, dynamic rapid compensation function required, capacitor deviation (such as -5% ~ +5%) and three-phase balance (such as ≤ 1.02)?

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