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What Is Intelligent Integrated Filtering Low-Voltage Power Capacitor？
ZHIMING brand of ZMZ-J type intelligent Integrated filtering low-voltage power capacitor (hereinafter referred to as product)is designed for situations where the power grids have certain harmonic content, but the common type power capacitor fails to run normally.
Main Technical Data of the Intelligent Integrated Filtering Low-Voltage Power Capacitor
- Rated voltage: 230VAC，250VAC，400VAC，415VAC, 450VAC，525VAC， other special voltage, please note it.
- Rated capacity: 1~50kvar
- Rated frequency: 50Hz or 60Hz
- Capacity tolerance: -5~+10%
- Loss Angle Tangent( Power Frequency Rated Voltage ): tgδ≤0.01 at 20°C
- Anti-voltage: between two poles 2.15 times rated voltage is 10s, between two poles 3kV, please choose the highest value 10s, there is no permissibility puncture and Flash over
- Max permit over voltage: 1.1 times rated voltage, the high permit over voltage is not more than 8 hours within 24 hours, 1.15 times rated voltage, it is not more than 30 minutes within 24 hours, 1.2 times rated voltage, it is not more than 5 minutes, 1.3 times rated voltage, it would not be more than 1 minute.
- Max permit over current: it is permitted that the overcurrent is not more than 1.3 times rated current; interim overcurrent should consider overvoltage， capacity positive tolerance, and harmonic effect. Interim over current is not more than 1.43 times rated current.
- Discharge property: the left voltage will reduce from √2 Un to below 50V within 3 minutes when the power cut off.
Product Parameters
| Intelligent Integrated Low-Voltage Filtering Power Capacitor | ||||
|---|---|---|---|---|
| Type Specification | Dimensions (mm) | |||
| L | M | H | ||
| Three-phase compensation | 5kVar | 380 | 135 | 310 |
| 10kVar | 380 | 135 | 310 | |
| 15kVar | 380 | 135 | 310 | |
| 20kVar | 470 | 162 | 410 | |
| 25kVar | 470 | 162 | 410 | |
| 30kVar | 470 | 162 | 410 | |
| 35kVar | 470 | 162 | 410 | |
| 40kVar | 470 | 162 | 410 | |
| Single-phase compensation | 5kVar | 380 | 135 | 310 |
| 15kVar | 380 | 135 | 310 | |
| 20kVar | 470 | 162 | 410 | |
| 30kVar | 470 | 162 | 410 | |
Working condition of the Intelligent Integrated Filtering Low-Voltage Power Capacitor
- Ambient temperature: -25~55℃;
- Relative temperature: 40℃, 20~90%;
- Altitude: ≤2000m
- Rated voltage:~220V/~380V;
- Voltage deviation: ±20%;
- Voltage waveform: sine wave, total distortion rate not exceeding 7%;
- Rated frequency: 50Hz±5%;
- Power consumption: <2W
- Voltage: ≤0.5% (within 80~120%of rated voltage);
- Current: ≤1% (within 5%~20%of rated current),
- Power factor: ±1.5%
- Temperature: ±1℃
- Voltage: ≤0.5%;
- Time: ±0.01s.
- Switching interva of capacitor: >10s (1s~10s customized);
- Reactive capacity: common compensation ≤40kvar,
- separate compensation: ≤20kvar;
- Online quantity: ≤120pcs
- Control accuracy:100%
- Permissible switching times: 200,000 times
- Attenuation rate of running time of capacitor capacity: ≤1%/year
- capacity: ≤0.1%/ten thousand times
- Annual fault rate: ≤1%
Why Choose ZHIMING's Intelligent Integrated Filtering Low-Voltage Power Capacitor?
Superior Safety and Reliability
The ZMZ-J intelligent Integrated filtering low-voltage power capacitor features a high-quality oil-free design that eliminates leakage risks and fire hazards associated with traditional oil-filled units. Built-in SH explosion-proof devices and temperature control systems ensure safe operation even in severe harmonic locations. The decentralized control mode delivers 200,000 fault-free switching cycles, providing exceptional long-term reliability for demanding industrial environments.
Advanced Harmonic Suppression Technology
Special technology and manufacturing processes effectively suppress high-order harmonics and surge conditions. The intelligent Integrated filtering low-voltage power capacitor demonstrates obvious efficiency in filtering harmonics of order 3, 5, 7, 9 and above. This capability allows normal operation in locations where harmonic current reaches up to 40% below rated values, protecting connected equipment from frequency converters and similar harmonic-generating sources.
Intelligent Control and Network Integration
The no-surge switching technology ensures stable and reliable performance during capacitor bank operations. A 485 communication interface enables connection to backstage computer systems for integrated distribution management. This intelligent networking capability allows remote switching control and centralized monitoring of reactive power compensation across entire facilities.
Flexible Modular Design
The modular structure supports flexible combination options to match specific installation requirements. Capacity expansion becomes straightforward as power demands grow over time. Simple installation procedures reduce commissioning time while the design allows convenient access for ongoing maintenance. The humanized human-machine interface simplifies operation and enables efficient on-site fault shooting when issues arise.
Outstanding Energy Efficiency
The ZMZ-J intelligent Integrated filtering low-voltage power capacitor effectively increases power factor while reducing overall electric power consumption. By eliminating the influence of high-order harmonics on the system, it improves electricity quality throughout the connected network. These combined benefits deliver measurable energy savings and extend the lifespan of other electrical equipment by providing cleaner, more stable power conditions.
FAQ
What problem does the ZMZ-J type intelligent Integrated filtering low-voltage power capacitor solve?
The ZMZ-J intelligent Integrated filtering low-voltage power capacitor addresses situations where power grids contain harmonic content that prevents common type power capacitors from operating normally. Standard capacitors often struggle or fail in environments with significant harmonic distortion, while this product is specifically engineered to function reliably under such challenging conditions.
What causes harmonics in power grids?
Harmonics typically originate from non-linear loads connected to the electrical system. Variable frequency drives, LED lighting, computer power supplies, and industrial rectifiers all generate harmonic currents. These distortions flow back into the grid and can interfere with standard equipment operation. The accumulation of harmonic content from multiple sources creates conditions where conventional capacitors cannot perform their intended function.
Why do common capacitors fail in harmonic-rich environments?
Standard power capacitors are designed for clean sinusoidal waveforms. When harmonics are present, the capacitor experiences higher current stress and increased heating beyond its design parameters. This leads to premature aging, capacitance loss, and potential failure. The ZMZ-J type incorporates filtering capabilities that allow it to handle these distorted waveforms without suffering the same degradation issues.
What does intelligent integrated mean in this context?
The intelligent integrated design combines multiple functions into a single unit. Rather than requiring separate capacitors, controllers, and protection devices, the ZMZ-J integrates these elements together. This approach simplifies installation, reduces panel space requirements, and provides coordinated operation. Built-in intelligence allows the unit to monitor conditions and respond appropriately to changing grid situations.
Where is the ZMZ-J intelligent Integrated filtering low-voltage power capacitor typically installed?
Intelligent Integrated filtering low-voltage power capacitor finds application in facilities where harmonic-generating equipment operates alongside reactive power compensation needs. Manufacturing plants with variable speed drives, commercial buildings with extensive electronic loads, and industrial sites with welding equipment or furnaces represent common installation scenarios. Anywhere that conventional capacitors have experienced repeated failures due to harmonic stress becomes a candidate for this filtering capacitor solution.
