ED3K / ED1K / ED3F — compensation and protective (filter) LV reactors for compensation installations
Country: Poland · Model: ED3K / ED1K / ED3F
Low-voltage reactors for reactive power compensation installations in two variants. The compensation ED3K (3-phase 0.5–100 kvar) and ED1K (1-phase 0.025–4 kvar) suppress excess capacitive power, and the protective ED3F for 2.5–100 kvar protect capacitor banks from higher harmonics.
- ED3K / ED1K (compensation)
- 3-phase 0.5–100 kvar, 1-phase 0.025–4 kvar; 400 V ±10 %, 50 Hz
- ED3F (protective)
- 2.5–100 kvar; p = 7 % or 14 % (fr = 134 Hz); bank 525 V, network 400 V
- Linearity
- ILIN = 1.15 In
- Thermal current
- 1.06 In
Technical specifications
| ED3K / ED1K (compensation) | 3-phase 0.5–100 kvar, 1-phase 0.025–4 kvar; 400 V ±10 %, 50 Hz |
|---|---|
| ED3F (protective) | 2.5–100 kvar; p = 7 % or 14 % (fr = 134 Hz); bank 525 V, network 400 V |
| Linearity | ILIN = 1.15 In |
| Thermal current | 1.06 In |
| Insulation class | F (155 °C) |
| Protection | IP00; NC temperature sensors |
| Standards | PN-EN 60076-6; EN/IEC 61558-2-20, EN/IEC 60938 |
Replacement for
0.4 kV power factor correction reactors (general type); no direct GOST designation
selected by purpose and main parameters, please confirm with the manager
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Capacitive reactive power raises the voltage at the connection point. Its sources are LED lighting, UPS units, switched-mode power supplies and long cable networks. The ED3K or ED1K reactor subtracts its inductive power from the capacitive power consumed by the installation and helps maintain the required tg φ, which removes the charge for capacitive power and relieves the network. Compensation reactors work at 400 V ±10 % and 50 Hz, with natural cooling, insulation class F, aluminium or copper windings, NC temperature sensors and IP00 per PN-EN 60076-6 at an ambient temperature of 40 °C. The protective ED3F together with capacitors form a resonant circuit that limits currents of the 3rd, 5th, 7th and higher harmonics. A reactance of 7 % protects from the 5th harmonic and above, and 14 % from the 3rd. The typical 14 % version has a resonant frequency of 134 Hz, is rated for a 525 V bank in a 400 V network, linearity up to 1.15 In and thermal current 1.06 In. The reactors reduce capacitor heating and the bank inrush current. Compliance with EN/IEC 61558-2-20 and EN/IEC 60938, climatic version C1/E0 or C2/E1.
How to choose
First find out what needs to be suppressed. When capacitive power prevails in the network, take the compensation ED3K for three phases or ED1K for one. When there are many harmonics in the network and the capacitor bank overheats, the protective ED3F is needed. A reactance of 7 % covers harmonics from the 5th, and 14 % from the 3rd, and here the choice depends on the load composition. The ED3F range is 2.5–100 kvar, so for a specific bank it is specified by its power and 525 V voltage.
Request a price and lead time
ED3K / ED1K / ED3F — compensation and protective (filter) LV reactors for compensation installations. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How does the ED3K compensation reactor differ from the ED3F protective reactor?
The ED3K suppresses excess capacitive reactive power in the network, while the ED3F together with capacitors limits higher harmonic currents and protects the bank.
Which reactance should be chosen for the protective reactor, 7 % or 14 %?
The 7 % version protects from currents starting from the 5th harmonic, and the 14 % version from the 3rd. The resonant frequency of the typical 14 % version is 134 Hz.
What powers are compensation reactors made for?
Three-phase ED3K for 0.5–100 kvar, single-phase ED1K for 0.025–4 kvar, at 400 V ±10 % and 50 Hz.
What bank voltage is ED3F rated for?
The typical version is rated for a 525 V capacitor bank in a 400 V network. The catalogue card covers 2.5–100 kvar.
Which sources of capacitive reactive power require such a reactor?
LED lighting, UPS units, switched-mode power supplies and long cable networks. The reactor removes the charge for capacitive power and relieves the network.
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Need a price, lead time or replacement?
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