Question 1

Which reactor should I choose, 7% or 14%?

Accepted Answer

A 7% reactor tunes the circuit to about 190 Hz and suits sites whose dominant harmonics are the 5th order and above (typical general industrial loads). A 14% reactor tunes to about 134 Hz and suits sites with significant 3rd-order (triplen) harmonics from single-phase loads such as LED lighting and computers. Send us your harmonic order and THD and we will confirm.

Question 2

How is a smart capacitor module different from a traditional capacitor bank?

Accepted Answer

A smart capacitor module integrates the capacitor, zero-crossing switch, controller and protection in one unit, so it needs no separate contactor or central controller and compensates automatically per phase or in three phases. One controller can manage up to 30 modules, and the switching unit is tested to 2 million cycles.

Question 3

Should I choose SVG or APF?

Accepted Answer

SVG provides dynamic reactive power from -100% to +100% and three-phase balancing; APF filters 2nd to 50th order harmonics in real time (efficiency above 95%). Many projects use both together. Send your harmonic and load data and we will confirm the configuration.

Question 4

Dry-type (self-healing) or oil-immersed capacitors - how do I choose?

Accepted Answer

YIDEK's YD-R dry-type self-healing capacitors use metallized polypropylene film with no liquid medium: they are lighter (about one quarter to one fifth of an oil-filled unit at the same rating), have lower losses (active loss at or below 0.2 W/kvar), avoid oil leaks, and discharge to below 75 V within 150 seconds of disconnection. For most low-voltage PFC applications we recommend the dry-type, self-healing range; oil-immersed designs remain an option for specific legacy or high-voltage cases. S

Question 5

Which standards and certifications do your products hold?

Accepted Answer

Power capacitors are designed to IEC 60831 / EN 60831 and GB/T 12747 (self-healing, fault current up to 10,000 A, UL 810). Reactors follow EN 60289 and GB/T 10229. Power capacitors, reactors, SVG and APF carry CE certificates; smart capacitors, controllers and switching devices hold CQC or CCC, and the company holds ISO 9001 and two Zhejiang Manufacturing 'Pin Zi Biao' certifications. YIDEK is also a Zhejiang Provincial 'Specialized, Refined, Distinctive, and Innovative' (SRDI) SME and a Nationa

Question 6

What are the operating limits of your capacitors?

Accepted Answer

Capacitors may operate at up to 1.1 times rated voltage for 8 hours per day, 1.15 times for up to 30 minutes per day and 1.2 times for up to 5 minutes per day (excluding transients). The dry-type range is rated for -40 to +55 C operating temperature. Install in a well-ventilated location away from corrosive gases and dust, and derate for high altitude and high ambient temperature.

Question 7

How do I choose a reliable power capacitor supplier?

Accepted Answer

Check, in order: (1) verifiable type-test and endurance data, not just price; (2) the standards the product is designed to (e.g. IEC 60831 / EN 60831, GB/T 12747); (3) in-house manufacturing and quality control of film, winding, impregnation and testing; (4) certification for your target market; (5) spare parts and after-sales support. Reliability varies widely by manufacturer, so ask for the test reports behind the claim.

Question 8

Can you supply a complete capacitor bank or PFC cabinet?

Accepted Answer

Yes. YIDEK supplies from components to turnkey systems: capacitors, reactors, switching devices, controllers, smart modules, SVG and APF can be configured into a complete capacitor bank or a hybrid PFC cabinet (capacitors + SVG + APF) based on your single-line diagram and load profile. Cabinets are factory-tested and modules parallel up to 12 units.

Question 9

Do you support OEM/ODM and custom ratings?

Accepted Answer

Yes. YIDEK supports OEM/ODM and custom configurations, including 480 V / 690 V / 800 V and 60 Hz options, capacitor-to-cabinet supply, and custom IP ratings for harsh environments.

Question 10

How are orders shipped, and can packaging be customized?

Accepted Answer

Orders ship by sea freight with protective wrapping and pallets. Packaging customization is not available.

Question 11

What is the warranty period?

Accepted Answer

The standard warranty is 12 months. A failure caused by product quality within the warranty period is repaired or replaced free of charge.

Question 12

What technical support do you provide?

Accepted Answer

YIDEK responds to technical requests within 24 hours and offers selection support, remote diagnosis, training at the factory, on site or online, field commissioning, and spare parts through the product lifecycle.

Question 13

How do I get a recommendation and a quote?

Accepted Answer

Send your system voltage, frequency, required rating (kvar or A), harmonic condition, application and project location. Our engineering team reviews the conditions and returns a technical proposal and quotation.

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