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Low Voltage Shunt Capacitor, Power Capacitor

General Description
Our self-healing low voltage shunt capacitor includes two types, BSMJ and BSMJABCD. It adopts advanced metallized film and is produced in strict accordance with the National Standard and IEC Standard by the introduced advanced foreign technology and equipment. This device is mainly suitable for use in low voltage electric grid to improve power factor, reduce reactive loss, and better the voltage quality.

Our company operates in strict compliance with ISO9001. By means of the superiority of science and technology, we are able to provide high-quality products at competitive price. Excellent services are offered as well.

Main Features
1. Small Volume and Light Weight
Due to the adoption of a new dielectric-metallized polypropylene film, the volume and weigh of our BSMJ series low voltage shunt capacitor are only 1/4 and 1/5 of those of the outdated products respectively.

2. Low Loss
The actual loss is less than 0.1%. Our product gives out little heat with low temperature rise, so it can save energy and its service life is very long at the same time.

3. Excellent Self -Healing Performance
Partial dielectric breakdown caused by over-voltage can heal quickly and the power capacitor can return to normal state automatically, which significantly improves the reliability.

4. Safety
Our product is equipped with self-discharge resistor and safety device. The self-discharge resistor can automatically discharge the electric energy the shunt capacitor carries. When failure occurs, the safety device will cut off power in time, thus preventing further troubles from happening. So it’s much safer to use this kind of low voltage power capacitor.

5. No Oil Leakage
This product uses advanced semi-solid impregnant whose drip melting point is above 70℃. There will be no loss of oil during the using course. This avoids environmental pollution and the power capacitor itself does not have to run the risk of invalidation caused by oil leakage.

Main Technical Parameters
Rated voltage 250VAC, 400VAC, 525VAC, 690VAC, 750VAC, 1050VAC
Rated output 10-80kvar
Capacitance Tolerance 0~+10%
Loss Angle Tangent (at rated power frequency voltage) tgδ≤ 0.01 at 20℃
Withstand voltage Between terminals: 2.15 times the rated voltage for 10s
Between terminal and container: 3kV AC for 10s
Max. allowable voltage 1.10 times the rated voltage
Max. allowable current 1.30 times the rated current
Self-discharging characteristics Apply √2 Un DC voltage to the device and switch off the power supply for 3m, and then the residual voltage is 50V or less
Standards In conformity with GB 12747-2004, IEC 831-1988

                                                                          BSMJ

 

Main Features
1. Small Size and Light Weight
The size and weigh of our product are only 1/4 and 1/5 of those of the old products respectively.

2. Low Loss
The actual loss is less than 0.1%. Our low voltage shunt capacitor has low consumption of energy, little radiation, low temperature rise, long service life, and good energy conservation properties.

3. Excellent Self -Healing Performance
When a part of the insulation is punctured due to over-voltage, our power capacitor is capable of self-healing so as to continue normal operation.

4. Safety
Equipped with self-discharging resistor and safety device inside, our product is safe and reliable.

5. No Oil Leakage
Our product employs the microcrystalline wax as the impregnant which remains solid at ordinary temperature and has a drip melting point higher than 70℃, so there is no oil leakage during operation, which prevents the environment from being polluted.

Scope of Application
This product complies with IEC 30-1998 standard.
Place for installation Indoor
Ambient temperature -40 ℃ ~ +45℃
Capacity error -5% ~ +10%
Withstand voltage 700VAC for 2~5s between terminals and 3000VAC for 10s between the whole terminals and the outer casing
Loss rate < 0.12%
Allowable overvoltage < 1.1 times the rated voltage (Within 8 hours every 24 hours)

< 1.15 times the rated voltage (Within 8 minutes every 24 hours)

< 1.2 times the rated voltage (Within 5 minutes and less than two times every month)

< 1.3 times the rated voltage (Within 1 minute and less than two times every month)
Allowable overcurrent < 1.3 times the rated current
Insulating resistance All terminals and the outer casing are above 300MΩ (500VDC for one minute)
Internal discharge resistance The internal protector reduces the voltage to below 75V in three minutes.
Main Technical Specifications
Service condition -25℃ ~ +45℃
Humidity ≤ 90 % RH
Altitude ≤ 2000m
Rated voltage 250VAC, 400VAC, 525VAC, 690VAC, 750VAC, 1050VAC
Rated output 10 ~ 80kvar
Capacitance tolerance 0 ~ +15%
Loss Angle Tangent (at rated power frequency voltage) tgδ≤ 0.01 at 20℃
Withstand voltage Capable of withstanding 1.75 times the rated voltage between poles for 10s, R≥ 1000MΩ
Max. allowable voltage 1.1 times the rated voltage
Max. allowable current 1.3 times the rated current
Self-discharging characteristics Apply √2 Un DC voltage to the device and switch off the power supply for 3m, and then the residual voltage is 50V or less.
Standards In conformity with GB 12747-2004 and IEC 831-1988

Related Names
Metallized Film Capacitor | Industrial Capacitor | Power Factor Improvement Components

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