Power Factor Correction

Transcription

1 Power Factor Correction It's all about saving your money!

2 Features that matter n Overcurrent up to 2.2 times rated current n Inrush current up to 300 times rated current n Self-healing type, segmented film technology, plus overpressure disconnector n Environmental friendly, dry type n CO 2 emission reduction n Safes energy costs General Remarks FRAKO Power Factor Correction Capacitors are produced in unique advanced technology and incorporate a triple safety feature. FRAKO is the first capacitor manufacturer who succeeded to combine self-healing capacitor film with segmented film and overpressure disconnection. This manufacturing technique guarantees significantly improved operational reliability of capacitors on power factor correction. We reserve the right to make alterations which are based on newly acquired knowledge or which contribute to an improvement in our products. Technical Remarks For the operation of Power Factor Correction Capacitors three aspects are of utmost importance: n High overload capacity n Long life expectancy n Safe reaction at overload Overload Capacity In networks where the pollution with harmonics is permanently increasing, surplus loads in capacitors have to be reckoned with. Apart from the higher voltage load it is especially the higher effective current during network resonances, that can considerably further stress the capacitors: Capacitor current 2

3 If, for example, the 11th harmonic is present with 8 % of the rated network voltage, the r.m.s. value of the rated voltage is only increased by some 0.3 %, but the current in the capacitors will exceed its rated value by 33 %. It becomes clear that the ability of a capacitor to withstand excessive current is significantly greater than the ability to withstand excessive voltage. Therefore FRAKO designs its capacitors as follows: n Max. overcurrent up to 2.2 times rated current n Max. inrush current up to 300 times rated current Life Expectancy The use of thoroughly tested material as well as careful processing ensures quality and a long life expectancy of the products. FRAKO produces its capacitors according to own specifications, which surpass by far the requirements of EN /2. Quality tests following each single manufacturing step, verify an outstanding manufacturing quality. Combined with a unique capacitor manufacturing technology, FRAKO achieves a worldwide leading durability. For example, the consistently low power loss over many years is achieved by using a special mineral filler and stabilizer which can avoid permanent partial discharges within the dielectric. Vacuum drying and temperature storage over several days avoid oxygen inclusion, which would accelerate the aging process of a capacitor. This means an extra effort in our production which, however, pays-off with a longer life expectancy. Safety Features FRAKO Power Factor Correction Capacitors operate with triple safety: n Self-healing at over-voltage n Reliable in operation because of segmented film n An overpressure disconnector disconnects the capacitors from the mains at the end of their lifetime or at dangerous overload Self-healing segmented capacitor film 3

4 Patent No The principle of the overpressure disconnector To verify the correct functioning of the integrated safety systems, FRAKO regularly draws sample capacitors from the production line. A constantly outstanding quality can be achieved and maintained only this way. Voltage Load Capacity FRAKO Power Factor Correction Capacitors have a load capacity in accordance with EN and -2 as well as IEC and -2. Rated voltage 300 VAC 400 VAC 440 VAC 480 VAC 525 VAC 610 VAC 8 hours daily 330 VAC 440 VAC 484 VAC 528 VAC 578 VAC 671 VAC 30 min. daily 345 VAC 460 VAC 506 VAC 552 VAC 604 VAC 702 VAC 5 min. 360 VAC 480 VAC 528 VAC 576 VAC 630 VAC 732 VAC 1 min. 390 VAC 520 VAC 572 VAC 624 VAC 683 VAC 794 VAC Application FRAKO manufactures three series of Power Factor Correction Capacitors: Basic, Standard and Premium. We recommend Basic Capacitors for standard automatic Power Factor Correction Systems without detuning and for fixed capacitors. Standard capacitors are recommended for automatic detuned Power Factor Correction Systems and fixed capacitors. Premium capacitors should be used for tuned and detuned filter circuits and for dynamic Power Factor Correction Systems. All three series of capacitors are of excellent FRAKO quality. FRAKO holds the Management System Certificate ISO 9001 and the Environmental Management System ISO Mechanical Construction Cylindrical aluminium case with mounting stud M12 x 12, low loss self-healing dielectric made from segmented metallized polypropylene film. Filled with a PCB-free, flame inhibiting, mineral filler with adhesive stabilizer and integrated mechanical overpressure disconnector. Permanently connected external discharge resistors at the terminals. The connecting terminal, which is available as an accessory, protects against direct contact of the fast-on terminals and meets the protection class IP 20. 4

5 Design FRAKO Power Factor Correction Capacitors are available as three-phase capacitors in 3 versions: Basic, Standard and Premium. The single-phase capacitors are available as Standard version. Rating kvar; V; 50 / 60 Hz (higher voltages on request!) Capacitance and Rating Tolerance + / - 5 % Power Loss Approx. 0.5 Watt / kvar measured at the connecting terminal including discharge resistors. Approx. 0.2 Watt / kvar measured at the capacitor coils. Temperature Class up to - 40 C; + 65 C Discharging According to EN 60831, every Power Factor Correction Capacitor must have a discharge device which guarantees a discharge to 75 V within 3 minutes as a protection against electric shock. All FRAKO capacitors have integrated discharge resistors which guarantee a discharge below 50 V within one minute. Accessories for Power Factor Correction Capacitors Article-No. Description Type Plug-in type connecting terminal for capacitors with ø 60 mm and ø 70 mm, three-phase AKD 25 / Plug-in type connecting terminal for capacitors with ø 60 mm and ø 70 mm, single-phase AKD 25 / Plug-in type connecting terminal for capacitors with ø 85 mm, three-phase AKD 30 / Plastic caps for LKT with ø 60 mm LKK Plastic caps for LKT with ø 70 mm LKK Rubber sleeve LKK 5

6 Dimensions 12 h h h h M M12 M12 M12 67 / 77 capacitors with d = 60 / 70 mm for connection with flat cable plug mm capacitors with d = 60 / 70 mm spring tension terminal 2 6 mm 2 Art.-No capacitors with d = 85 mm for connection with flat cable plug mm capacitors with d = 85 mm spring tension terminal 16 mm 2 Art.-No plastic cap for capacitors with d = 60 mm Art.No d = 70 mm Art.No rubber sleeve Art.-No (not available for capacitors with d = 85 mm) 6

7 Technical Data Technical Data Basic Capacitor Standard Capacitor P r e m i u m C a p a c i t o r operated with operated with DL-specification DP-specification...-DB LKT...-DP LKT...-DL LKT...-DL Rated reactive power kvar kvar kvar kvar Rated voltage V V V V Rated frequency Hz Hz Hz Hz Max. overcurrent 1.5 I N 1.8 I N 2.2 I N 2.0 I N (at rated voltage, 50 Hz) (at rated voltage, 50 Hz) (at rated voltage, 50 Hz) (at rated voltage, 50 Hz) Max. inrush current 200 I N 250 I N 300 I N 300 I N (at rated voltage, 50 Hz) (at rated voltage, 50 Hz) (at rated voltage, 50 Hz) (at rated voltage, 50 Hz) Temperature class - 25/D - 40/+60 C continuous - 40/+65 C continuous - 40/+60 C continuous Max. / min. temperature +55 C / -25 C +60 C / -40 C +65 C / -40 C +60 C / -40 C Max. case temperature +70 C +75 C +78 C +75 C Test voltage terminal / terminal 2.15 U N for 2 sec U N for 2 sec U N for 2 sec U N for 2 sec U N for 18 sec U N for 18 sec U N for 18 sec U N for 18 sec. Test voltage terminal / case 3,900 V, 2 sec. 3,900 V, 2 sec. 3,900 V, 2 sec. 3,900 V, 2 sec. Isolation level 3/8 kv 3/8 kv 3/8 kv 3/8 kv Mean Life expectancy 100,000 h 130,000 h 170,000 h 130,000 h Max. humidity 95% 95% 95% 95% Max. altitude 4,000 m 4,000 m 4,000 m 4,000 m Number of annual 20,000 40,000 60,000 60,000 switching operations Discharging level in 60 sec. 50 V 50 V 50 V 50 V Recommended for Networks with low Networks with higher Demanding networks Networks with higher harmonic content and harmonic levels (i. e. very high harmonic harmonic levels normal ambient and / or high ambient levels and/or very high and / or high ambient temperature temperature ambient temperature) temperature Temperature admissible ambient temperature class maximum mean over 24 h highest mean over 1 year D 55 C 45 C 35 C 7

8 ...-DB for 50 Hz and 60 Hz Basic Capacitors Capacitor Dimensions Article-No. Rated Reactive Power in kvar at Rated Voltage 50 Hz Type mm 230 V 250 V 300 V 400 V 415 V 440 V 460V 480 V 525 V Three-phase capacitors LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB Capacitor Dimensions Article-No. Rated Reactive Power in kvar at Rated Voltage 60 Hz Type mm 230 V 250 V 300 V 400 V 415 V 440 V 460V 480 V 525 V Three-phase capacitors LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB LKT DB

9 ...-DP /...-EP for 50 Hz Standard Capacitors Capacitor Dimensions Article-No. Rated Reactive Power in kvar at Rated Voltage 50 Hz Type mm 230 V 250 V 300 V 400 V 415 V 440 V 480V 525 V Three-phase capacitors LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP Single-phase capacitors LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP

10 ...-DP /...-EP for 60 Hz Standard Capacitors Capacitor Dimensions Article-No. Rated Reactive Power in kvar at Rated Voltage 60 Hz Type mm 230 V 250 V 300 V 400 V 415 V 440 V 460V 480 V 525 V Three-phase capacitors LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP LKT DP Single-phase capacitors LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP LKT EP

11 ...-DL for 50 Hz and 60 Hz Premium Capacitors Capacitor Dimensions Article-No. Rated Reactive Power in kvar at Rated Voltage 50 Hz Type mm 230 V 400 V 415V 440 V 480 V 525 V 610V Three-phase capacitors LKT DL * 6.1* LKT DL * 7.6* LKT DL * 11.3* LKT DL * 12.1* LKT DL * 14.2* LKT DL * 15.1* LKT DL * 24.2* LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * Capacitor Dimensions Article-No. Rated Reactive Power in kvar at Rated Voltage 60 Hz Type mm 230 V 400 V 415V 440 V 460 V 480 V 525 V 610 V Three-phase capacitors LKT DL * 7.3* LKT DL * 9.1* LKT DL * 13.5* LKT DL * 14.5* LKT DL * 17.0* LKT DL * 18.2* LKT DL * 29.0* LKT DL * 7.1* LKT DL * 10.9* LKT DL * 13.0* LKT DL * 17.3* LKT DL * 25.1* LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * LKT DL * Generally, DL-type capacitors can also be operated at higher voltages with the DP-type specification. Please note that the DP values in the chart are marked with * 11

12 Kondensatoren- und Anlagenbau GmbH Tscheulinstr. 21a Teningen Germany Tel Fax FRAKO / 10/08 / 8277 Subject to technical alteration