Intelligent Integrated Low-Voltage Filtering Power Capacitor

Introduction to the Low-Voltage Filtering Power Capacitor

ZHIMING brand of ZMZ-J type intelligent integrated low-voltage filtering 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.

Features of the Low-Voltage Filtering Power Capacitor

• High-quality type low-voltage capacitor, oil-free design, high safety;
• Adoption of no-surge switching switch, with advanced technology, stable and reliable performances;
• Adoption of special technology and process effectively suppresses high-order harmonics and surge, has obvious efficiency in suppressing harmonics of order 3,5,7,9 and above;
• Modular structure, flexible combination, convenient capacity expansion, simple installation, convenient for maintenance;
• Intelligent network, 485 communication interface, can switch in the backstage computer, to carry out integrated management of distribution.
• Adoption of decentralized control mode, 200,000 times of fault-free switching, with high reliability;
• Humanized human-machine interface, simple operation, convenient maintenance, it is convenient for fault shooting on site;
• It is equipped with an SH explosion-proof device and a temperature control device inside, which improves the running reliability in severe harmonic locations.
• Outstanding energy-saving efficiency, it effectively increases the power factor, reduces electric power consumption, and improves the electric energy quality.
• ZMZ-J type intelligent integrated low-voltage filtering capacitor is mainly applied to locations where the harmonic current is  40% below (such as frequency converter,and other equipment), not only meets the requirements of reactive compensation and improving power factor, but also eliminates the influence of high-order harmonics on the system, improving the electricity quality.

Technical Parameters of the Low-Voltage Filtering Power Capacitor

Ambient conditions

Ambient temperature: -25~55℃;

Relative temperature: 40℃, 20~90%;

Altitude: ≤2000m

Power supply conditions

Rated voltage:~220V/~380V;

Voltage deviation: ±20%;

Voltage waveform: sine wave, total distortion rate not exceeding 7%;

Rated frequency: 50Hz±5%;

Power consumption: <2W

Electrical safety

Electrical clearance, creepage distance, insulation strength, safety protection, short-circuit strength, sampling, and control circuit protection should all be

In conformity with the corresponding clauses of standard DL/T842-2003 Ordering specification for low-voltage shunt capacitor installation.

Measurement error

Voltage: ≤0.5% (within 80~120%of rated voltage);

Current: ≤1% (within 5%~20%of rated current),

Power factor: ±1.5%;

Temperature: ±1℃

Protection error

Voltage: ≤0.5%;

Current: ≤1%;

Temperature: ±1℃.

Time: ±0.01s.

Reactive compensation parameters

Switching interva of capacitor: >10s  (1s~10s customized);

Reactive capacity: common  compensation ≤40kvar,

separate compensation: ≤20kvar;

Online quantity: ≤120pcs.

Reliability

Control accuracy:100%;

Permissible switching times: 200,000 times;

Attenuation rate of running time of capacitor capacity: ≤1%/year;

Attenuation rate of the switching of the capacitor

capacity: ≤0.1%/ten  thousand  times;

Annual fault rate: ≤1%.

Main Technical Data of the Low-Voltage Filtering 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 Size of the Low-Voltage Filtering Power Capacitor

Outline And Mounting Sizes

Note: Other special specification models are supplied according to user requirements

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