CBB65 Start Capacitor Feature and Application

CBB65 Capacitor Description

 

CBB65 capacitors ,also called AC motor run capacitor, use edge-thickened metallized zinc-aluminum film as electrodes and dielectric. The film is wound by a winding machine and then inserted into an aluminum case. High-purity castor oil is filled into the case to maintain a vacuum state, allowing the capacitor to withstand high temperatures. This design ensures excellent performance and long service life. The capacitor also employs a second-generation mechanical explosion-proof design as an explosion-proof measure, significantly improving its performance.

 

 

Explosion-proof Principle

 

The explosion-proof mechanism, commonly known as pressure differential explosion-proof, operates as follows: When insulation of a component within the capacitor deteriorates, generating high heat, internal pressure increases, causing the capacitor's outer shell to deform and expand. Mechanical displacement breaks the explosion-proof piece (wire). Since the power supply is connected through the explosion-proof piece to the capacitor components, breaking the explosion-proof piece disconnects the power supply, effectively opening the circuit. The effectiveness of explosion-proof depends on the design of the explosion-proof piece, its installation position, and the sealing of the capacitor.

 

CBB65 Applications

 

1. Used in AC power systems for assembling power factor automatic compensation cabinets, on-site compensation devices, and UPS power supplies.
2. Suitable for starting and operating single-phase motors powered by 50Hz AC frequency, capable of continuous operation.
3. Ideal for applications in environments with high safety requirements such as coal mines, railways, aerospace, etc.

 

Performance Characteristics

 

1. Cylindrical aluminum shell, compact and lightweight.
2. Excellent electrical performance, low loss, with good self-healing (SH) characteristics.
3. Internally equipped with a pressure-type explosion-proof device for safe use.

 

Specification

No.	Model	Voltage	Capacitance	D	H	H1	Type
1	CBB65A	450VAC	30+1.5μF	50±1	100±2	112±2	A
2	CBB65A	450VAC	35+2μF	50±1	105±2	117±2	A
3	CBB65A	450VAC	40+1.5μF	50±1	120±2	132±2	A
4	CBB65A	450VAC	50+1.5μF	55±1	120±2	132±2	A
5	CBB65A	330VAC	174μF	60±1	130±2	142±2	B

 

Outer Dimension

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