HT App Shunt Capacitors
HT App Shunt Capacitors
Specification :Non Self Healing Type, IS:13925
Range :
Output : Upto 300 kvar of single unit
Voltage : 1.1kv, 3.3kv, 3.6kv, 6.35kv, 7.2kv, 50/60Hz
Phases : Single Ph & Three phase
Salient Features :
❒ All Polypropylene (APP) film Foil Design
❒ Internal Element Fuse Protection
❒ Non PCB PXE Oil
❒ Highest Inrush current with standing capacity
❒ Suitable for Harmonic loads
❒ Extra low losses
❒ Compact construction
❒ Custom Designs Available
❒ Also Special Purpose Capacitors
JAIVIC Capacitors are designed and manufactured with the latest technology by ‘Jaivic Electromech Engg. Pvt. Ltd.’ At their most modern plant at Nasik. The Organisation is backed by a team of people having years of experience & expertise in the field. Hundred percent capacitors are thoroughly tested at every stage of manufacturing and all the routine and type tests are rigorously carried out as per IS: 13925 with latest version. This ensures excellent trouble-free service under most critical conditions of operation.
`JAIVIC’ H.T. Capacitors are used in various applications such as, in distribution systems in mines, Electricity boards, in Industries, for testing application etc. These are used across big motors for lift irrigation schemes, water supply etc. For Power Factor Improvement.
CONSTRUCTION & DESIGN OF H.T. SHUNT CAPACITORS
Each Basic element is wound in clean & dust free atmosphere on fully automatic HT Winding machine with the help of Electrical grade Imported biaxially oriented polypropylene film and a high purity soft annealed Aluminum foil.
The Winding of element is flat type. The Elements connected in parallel are formed in series groups to meet the voltage requirement.
The complete stack assembly is insulated with high grade electrical insulating material to get the desired insulation level. And total stack inserted in CRCA/SS container. For terminals of capacitor using high class glazed porcelain bushings.
The capacitor are dried under high vacuum and impregnated by synthetic liquid (PXE) under accurately controlled conditions.
Capacitors are designed to have very low loss generally less than 0.2 watts per kvar.
Every individual capacitor element is protected by fuse. In case of element failure during abnormal condition, only one element is disconnected, after disconnection of faulty element, the capacitor unit restores the normal operation within milliseconds with a slightly reduced output. Due to internal fuse the risk of case bursting is considerably reduced.
Design details of HT-APP
PRODUCT RANGE
Standard Capacitors are Available: in 1.1, 3.3, 6.6, & 11 kV voltage class and in Output rating of 50Kvar to 500 Kvar in single unit, Different ratings are available on request.
ELECTRICAL TESTING
Routine Electrical tests are carried out as per IS: 13925:1998,
Type test are carried out as per customers requirements.
| SR. | PARTICULARS | SPECIFICATIONS |
| 1 | Make & Type | “Jaivic “ make, Indoor / outdoor type |
| 2 | Type Of Dielectric | Imported Biaxially Oriented Polypropylene film ( BOPP) |
| 3 | Type Of electrode | High Purity (99.9%) soft annealed 5 micron Aluminium Foil |
| 4 | Type Of Impregnant | NPCB, PXE Oil |
| 5 | Designing Of Capacitor | Designing with very less voltage stress |
| 6 | Protection system | HT HRC Fuses of suitable capacity |
| 7 | Internal Protection | Internal Element Fuse Design |
| 8 | Energy consumption, Watts/kVAr | 0.2 Watts/kVAr ( Maximum ) |
| 9 | Reference Standards | IS:13925-1998 With it’s latest amendment,IEC-60871 |
| 10 | Rated capacitor unit | From 50 kvar to 500 Kvar |
| 11 | Normal system voltage | 1.1,3.3,6.6,up to 11 kv system voltage |
| 12 | Rated frequency | 50 HZ |
| 13 | Rated current | As per requirement |
| 14 | No. of phases | 1 Or 3 Phases |
| 15 | No. of terminals | 2 or 3 Terminals |
| 16 | No. of bushings | 2 or 3 Bushings |
| 17 | Type of Bushing Terminal | High gloss Porcelain bushing |
| 18 | Connection of capacitor unit | Series-parallel connection of capacitor unit |
| 19 | Maximum permissible over voltage | 110% of rated voltage |
| 20 | Maximum permissible current | 130% of rated current |
| 21 | Residual voltage | 50V or less within 10 minutes |
| 22 | Maximum time interval required between de-energisation & re-energisation of the Bank | 5 minutes |
| 23 | Discharge device | Internally fitted discharge resistors |
| 24 | Limiting ambient Temperature | 50 Deg. C. As per IS |
| 25 | Temperature Rise | 10 o C above ambient. |
| 26 | Type of container | M.S. / S.S. |
| 27 | Thickness of container | 16 Swg / 18Swg |
| 28 | Surface treatment | Zinc Phosphate |
| 29 | Paint Finish | One coat Epoxy Primer and final coat Silver grey Epoxy paint |
| 30 | Voltage Test For capacitor Unit< Between Terminal | Rated voltage X 4.3 times D.C. Voltage for 10 sec. |
| 31 | Between Terminal & Body | As per IS 13925 |
| 32 | Impulse Withstand Voltage | As per IS 13925 |
FEATURES :
• Extended foil design.
• Design with several layer of BOPP film + Aluminum Foil construction.
• High dielectric strength.
• Available with Internal / External fuses.
• Longer life & high reliability.
• Low energy consumption.
• Available in M.S. / S.S. Container.
• Suitable for indoor & outdoor application.
• Design varied based on the type of system.
• Available with cubical of Isolator, Reactor, & HRC Fuses assly.
• Suitable for the most arduous system condition.
• Banking: Star, Delta, Double Star.
Misc. /others:
a) Suitable and appropriately rated isolatory i.e. control device shall provide and erected by the contract under this item. Moreover, mounting stand shall be fabricated from M.S. Iron angle after getting the approval for design from competent authority.
b) Entire unit including capacitor stand control device, protecting fuses, cables, etc. shall stand for one year guarantee from the date of final commissioning.
c) Unit shall be tested for routine test as per relevant I.S.S. at the manufacturers shop (before dispatch) in presence of buyer’s representative. Similarly, same will also be tested at the site of the work for their faultless performance before connecting.
d) Complete unit shall be enclosed in sheet steel cubical duly painted and marked with name plate details such as Sr. No. Make, Brand, Type etc.
ACCESSORIES & PROTECTION DEVICES
1) The kVAr rating of capacitor, which is connected across the motor permanently, should be less than the magnetizing kVAr of motor.
2) When capacitors are connected permanently across the motor, the total line current drawn by the motor is reduced. As such the overload protection relay in starter of the motor requires resting.
3) HRC Fuses: For proper protection to Capacitors, current limiting high voltage HRC Fuse links are recommended for external use along with Capacitors.
4) Series Reactors: Standard ratings are 1% and 6% of kVAr of Capacitors.
0.2% reactor can be used to limit switching surge current parallel operation of Capacitor banks, Reactors are manufactured as per ISS 5553 Part II.
Detailed dimensional drawing available on request.
If you need any further technical information, Please write to us and we would be willing to provide the same.
Realated Product
