Neptune is one of the leading providers of Power Quality products in India. They have a joint venture with DUCATI Enegia Spa through which they being to India a widge range of PFC products including but not limited to power capacitors, harmonic block reactors, APFC relays and Thyristor Switching Modules(TSM).
Capacitor Types
- APP Capacitors
- NSL-10 Capacitors
- NSL-10 HD Capacitors
- Ultima - The Ultimate Capacitors
- Power 9 Heavy Duty Capacitors
- DUCA Power XD Capacitors
NEPTUNE APP Capacitors are manufactured using Double Hazy Double Thick Polypropylene films as dielectric between two electrodes of thick soft annealed, 99.35% purity of Aluminium foil and have extended foil construction. Power leads are soldered to the extended portion to make a strong and positive electrical contact which can withstand Heavy inrush and discharge current. Capacitors are impregnated with NPCB, bio-degradable impregnate and are hermetically sealed. Impregnating oil adds to dielectric strength and provides cooling effect.
Range | 5-50 KVAR |
Standard Voltage Range | 415/440/480/525/600VAC |
Frequency | 50 Hz / 60 Hz |
Impregnant | NPCB |
Dielectric Loss | < 0.2 watt/ KVAr |
Capacitor Loss | < 0.5 watt/ KVAr |
Electrode | 99.35% Purity of Aluminium Foil |
Life Expectancy | 1,70,000 Hrs |
Max. permissible Over Voltage | 115% of Vn |
Max. permissible Over Current | 130% of In |
NSL10 capacitors are particularly suitable in the production of automatic power factor correction systems due to their modular construction. They are also used in power factor correction of motors and transformers. The NSL10 three- phase capacitor is made with three 416.30 single-phase capacitors. The three switch-on reactors are made of copper windings. The external case, made with insulating material, (Class V2 according to UL 94 standard flammability classification) eliminates the need to provide a protective earthing connection. The easy assembly using “small feet” make the capacitor a universal one.
Salient Features
- Total Modularity
- New Assembling System
- Dry Type Low Losses Non Polluting
- Double Protection Safety Device
Range | 7.5KVAr, 10KVAr, 12.5 KVAR & Above |
Type | Standard Duty |
Standard | EN 60831-1/2 |
Rated Voltage | 415/440/480/525/690V |
Rated Frequency | 50 Hz |
Over Current | 1.3 In Maximum |
Dielectric losses | < 0.3 W/kvar |
Discharge Resistor | Internal (50V after 1 min) |
Terminals | 3 x M 8 |
Capacitance Tolerance | -5 + 10% |
Test Voltage Terminal to Terminal | 2,15 Un per 10″ |
Test Voltage Terminal to Casing | 3 kV per 10″ |
Temperature Category | -40 + 550C |
Protection Class/Type | IP 40 |
Altitude | < 2000 m |
NSL-10 HD range for use in the power factor correction of industrial & office electrical networks. It is a series of quality products which has been designed to cater to the most demanding users where operating conditions are particularly critical and where reliability is of prime importance. The NSL-10HD range also satisfies the demand for a product with durability and longer life. The capacitors used are characterized by the dielectric impregnated with biodegradable synthetic oil. Impregnation with oil as well as the total lack of air between the capacitors plates ensures that the dielectric – and hence the capacitor too-lasts a long time. The dielectric consists of heavy films of polypropyle.
Salient Features
- Total Modularity
- New Assembling System
- Oil Impregnation
- Low Losses
- Double Protection Safety Device
Range | 7.5KVAr, 10KVAr, 12.5 KVAR & Above |
Type | Heavy Duty |
Standard | EN 60831-1/2 |
Rated Voltage | 415/440/480/525/690V |
Rated Frequency | 50 Hz |
Over Current | 1.6 In Maximum |
Dielectric losses | < 0.3 W/kvar |
Discharge Resistor | Internal (50V after 1 min) |
Terminals | 3 x M 8 |
Capacitance Tolerance | -5 + 10% |
Test Voltage Terminal to Terminal | 2,15 Un per 10″ |
Test Voltage Terminal to Casing | 3 kV per 10″ |
Temperature Category | -40 + 550C |
Protection Class/Type | IP 30 |
Altitude | < 2000 m |
The Three-phase Ultima Capacitors are latest from Neptune has been designed for power factor correction in networks with high harmonic current content. They are capable of withstanding 4xIn which is Maximum in comparison to other technologies offered in the market with very low losses.
The capacitor has been made by three elements connected in a delta configuration with metallization done in special profile to allow high voltage stress on the film. The elements are housed into an aluminium can and finally impregnated by resin oil.
The impregnation technology allows:
- To treat the capacitor in a vacuum
- To eliminate gas and humidity from the active area – impregnate the element
- To control the “partial discharge effect” which is one of the reason to have precocious
- Low Losses
Range | 7.5KVAr, 10KVAr, 12.5 KVAR & Above |
Type | Heavy Duty |
Standard | EN 60831-1/2 |
Rated Voltage | 415/440/480/525/690V |
Rated Frequency | 50 Hz |
Over Current | 4 In Maximum |
Inrush Current | 450 In |
Dielectric losses | < 0.3 W/kvar |
Discharge Resistor | Internal (50V after 1 min) |
Terminals | 3 x M 8 |
Capacitance Tolerance | -5 + 10% |
Test Voltage Terminal to Terminal | 2,15 Un per 10″ |
Test Voltage Terminal to Casing | 3 kV per 10″ |
Temperature Category | -25 + 70/D |
Protection Class/Type | IP 20 Indoor Mounting |
Altitude | < 2000 m |
Life Expectancy | >170000h – 25/D |
The capacitors making up the POWER-9 series are used for static power factor correction of a wide range of motors and transformers. This series share the same internal configuration, with three capacitor elements wired internally in a delta connection. The overpressure protection system is specifically dimensioned so as to constantly ensure maximum safety in terms of ground protection and protection against the risk of arcing, even in conditions where there is a high energy density.
In these series HEAVY DUTY of resin-impregnated capacitors, the three elements are housed in a plastic container which, together with the impregnating agents, assures dual insulation between the wound cores and metal enclosure. To guarantee perfect filling during the resin impregnation process, the process itself is carried out prior to the elements being placed in the enclosure; in this way the distribution and uniformity of the impregnation can be subjected to a complete visual and dimensional inspection.
Range | 1KVAr/2KVAr/3KVAr/4KVAr & above |
Type | Heavy Duty |
Standard | IEC 831-1/2 |
Rated Voltage | 415/440/480/525/690V |
Rated Frequency | 50 Hz (60 Hz on request) |
Over Current | 2.5 x In |
Inrush Current | 200 In |
Discharge Resistor | External (50V after 1 Min.) |
Terminals | Screw Terminal |
Capacitance Tolerance | -5 + 10% |
Test Voltage Terminal to Terminal | 2, 15 Un x 2 s |
Test Voltage Terminal to Casing | 3 kV per 10″ |
Temperature Category | -25 to 70/D |
Protection Class/Type | IP20 Indoor Mounting |
Life Expectancy | 100000h – 25/D |
The capacitors making up the DUCAPOWER Super Heavy Duty Series are used in static & automatic power factor correction equipment. The series has three capacitor elements wired internally in a delta connection.
The capacitors making up the new series are obtained using three elements wound with the new PPMh and positioned inside metal case. The use of impregnation technology and positioning of the individual elements inside the case assure extremely high capacitor performance in terms of heat dissipation, as well as ensuring a long life and excellent ground insulation.
This series is used in practically all Neptune Thyristor Switched Power Factor Correction Systems which rely on three-phase capacitors. In fact, the above-described characteristics make these capacitors especially suitable for continuous duty under highly demanding conditions in harmonic rich environments.
Range | 10 KVAr, 12.5 KVAr,15, 25 KVAr & above |
Type | Super Heavy Duty |
Standard | IEC 831-1/2 |
Rated Voltage | 415/440/480/525/690V |
Rated Frequency | 50 Hz (60 Hz on request) |
Over Current | 4 x In |
Inrush Current | 450 In |
Discharge Resistor | External (50V after 1 Min.) |
Terminals | M8 Terminal |
Capacitance Tolerance | -5 + 10% |
Test Voltage Terminal to Terminal | 2, 15 Un x 2 s |
Test Voltage Terminal to Casing | 3 kV per 10″ |
Temperature Category | -25 to 70/D |
Protection Class/Type | IP20 Indoor Mounting |
Life Expectancy | 170000h – 25/D |