Medium Frequency Water Cooled Capacitors For Induction Heating And Melting |
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Advantages
• World Class Raw Materials
• Mfgd in state of art infrastructure
• Low Loss
• Highly Reliable
• Long Life Performance
• Environmental Friendly
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General Information |
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Standards |
| Scope |
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Medium Frequency Water Cooled
Capacitors from 1 kV up to maximum
5000 volts, to maximum 7000 kVAr and
frequency up to 50 kilocycles for
indoor use.
- with dead casing, open terminal
(2 bushings).
- with live casing, open terminal
(1 bushing). |
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- IEC 60110-1 Capacitors for Induction
Heating & Melting application.
- BIS 9251 (Indian standards).
- DIN EN 60110-1 Power capacitor for
Induction Heating Installations.
- VDE 05650-9:1999-09
- Capacitors in accordance with other
standards, available upon request. |
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| Quality Management System |
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Safety Regulations |
| ISO 9001 accredited byTUV. |
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When installing the equipment,
relevant IEC or VDE recommendations
shall be observed. |
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| Quality management system |
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Altitude |
| ISO 9001, BS 5750
Qualifications
EDF (HN 54-5-05), CSA |
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Capacitors are designed to operate at
altitudes not exceeding 1500 mtrs. |
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| Impregnant |
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Dielectric |
The capacitors are impregnated with a
NON-PCB based fluid which is Jarylec
C-1 01. This dielectric fluid is
environmentally acceptable, eliminates
health and environment hazards. |
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An imported all film dielectric is used
and consists of polypropylene in the
form of bi-axially oriented film, hazy on
both sides, and in 2 or 3 layers with
end and edge folded aluminum foil as
electrodes. |
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| Dielectric losses |
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Permissible Overloads |
Dielectric losses@ 50 Cis in fresh
condition are approx. 0.2 to 0.3 watts /
kvar up to 5 KHz, and 0.5 watts / Kvar
up to 50 KHz and reduce after 500
operating hours to a stable state. The dielectric losses, depending on
capacitor design, shall be added to
losses caused by:
- Internal discharge resistors
- Internal connections
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Maximum permissible voltages
Capacitors are designed for operation
at voltage levels according to the
following table.
The amplitudes of the over voltages
that can be tolerated without
significant deterioration of the
capacitor depend up on the duration,
the total number and the capacitor
temperature.
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Discharging
Each capacitor unit shall be provided
with means of discharging to 75V or
less.
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Switching over voltages
The residual voltage on a capacitor
prior to energization shall not exceed
1 0% of the rated voltage. |
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Maximum permissible currents |
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Capacitor units will be suitable for
continuous operation at an
r. m. s current of 1.30 times the current that
occurs at rated sinusoidal voltage and
rated frequency, excluding transients.
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