Low Voltage Power Capacitor
This low-voltage cylindrical power capacitors with waistline design, mainly used for low-voltage power factor correction (PFC) to improve power quality and reduce energy loss. Core Traits Application : Low‑voltage power distribution systems; harmonic filtering when equipped with reactors to...
- Product Introduction
This low-voltage cylindrical power capacitors with waistline design, mainly used for low-voltage power factor correction (PFC) to improve power quality and reduce energy loss.
Core Traits
Application: Low‑voltage power distribution systems; harmonic filtering when equipped with reactors to prevent grid resonance.
Compliance: IEC 60831, UL 810
Safety Features: Integrated over-voltage protection (internal automatic disconnection to avoid explosion and fire); factory‑preinstalled discharge resistors (voltage reduces to below 50 V within 60 seconds for safe handling).
Protection: Short‑circuit protection via HRC fuses (1.6–1.8× capacitor rated current); overload protection by thermal/magnetic relays.
Key Specifications
Ambient Temperature: Class −25/D; maximum 55 °C, 24‑hour average ≤45 °C, annual average ≤35 °C.
Mounting: Vertical installation only (for units with height >224 mm); recommended at the bottom of the
cabinet for optimal cooling; minimum clearance of 20 mm between capacitors and above units.
Electrical: Maximum cable cross‑section 25 mm², maximum operating current 80 A; maximum annual
switching operations ≤5,000 times.
Key Maintenance Points
Inspection Schedule
Check terminal connections for tightness within 2 weeks after installation, then check monthly.Clean terminals and bushings regularly to prevent dust-induced short circuits.Measure operating current twice a year and compare with rated values using a true RMS meter or harmonic analyzer.Inspect capacitor surface temperature; replace any unit showing abnormal overheating.
Functional Checks
Verify discharge resistor performance: voltage must drop below 50 V within 60 seconds after power-off.Check short-circuit protection fuses for proper function.If harmonics are detected, consider installing harmonic-filter capacitors to avoid resonance.,
Safety Rules
Maintenance must be performed only by qualified personnel.Always disconnect, lock out, and fully discharge capacitors before any work.Do not use damaged or dented capacitors (dent depth > 0.5 mm).
Disposal
Dispose of waste capacitors as electronic waste in compliance with local regulations.
IEC Certificate
About us
Company Profile
Jinneng Electric Power Tec hnology (Hubei) Co., Ltd. was established in 2011 and is located in Xiaogan City, Hubei Province. The company covers a land area of over 27,000 square meters with a construction area exceeding 33,000 square meters. We have a professional R&D team consisting of 28 engineers with strong independent research and development capabilities.
Our company has obtained a full range of authoritative certifications, including ISO9001, ISO14001, OHS18001, CCC, CQC and CE, ensuring standardized production and reliable product quality.
Main Products
High & low voltage complete sets of equipment: Box-type substations, high and low voltage switchgears, cable branch boxes, photovoltaic power products and related equipment.
Cable accessory series: Cold-shrinkable & heat-shrinkable cable accessories, terminal connectors, plug-in arresters and other supporting electrical components.
Electrical components & power quality equipment: Power capacitors, reactors, intelligent controllers, contactors, switches, circuit breakers,measuring instruments, active power filters, reactive power compensation devices, distribution boxes, as well as customized solutions for reactive power compensation and harmonic suppression.
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