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High Voltage 3-Phase Capacitors 100Kvar to 1000Kvar - China Suppliers & Factory for Enhanced Power Quality
Specification Table
Table 1. Conventional 3-phase HV power capacitor
| Model | Rated voltage KV | Rated output Kvar | Case Dimension (mm) | Total height (mm) | Terminals D (mm) | Remark | ||
| L | W | H | ||||||
| FBC-MSO | 6.3 | 100 | * | 145 | 410 | 640 | 135 | resistor |
| FBC-MSO | 6.3 | 150 | * | 145 | 490 | 720 | 135 | resistor |
| FBC-MSO | 6.3 | 200 | * | 185 | 490 | 720 | 135 | resistor |
| FBC-MSO | 6.3 | 250 | * | 185 | 490 | 720 | 135 | resistor |
| FBC-MSO | 6.3 | 300 | * | 210 | 490 | 720 | 135 | resistor |
| FBC-MSO | 11 | 100 | * | 145 | 410 | 640 | 135 | resistor |
| FBC-MSO | 11 | 150 | * | 145 | 490 | 720 | 135 | resistor |
| FBC-MSO | 11 | 200 | * | 185 | 490 | 720 | 135 | resistor |
| FBC-MSO | 11 | 250 | * | 185 | 490 | 720 | 135 | resistor |
| FBC-MSO | 11 | 300 | * | 210 | 490 | 720 | 135 | resistor |
| FBC-MSO | 11 | 50 | * | 145 | 270 | 500 | 135 | resistor |
Table 2. High-capacity HV power capacitor
| Model | Rated voltage KV | Rated output Kvar | Case Dimension (mm) | Total height (mm) | Terminals D (mm) | Fuse | ||
| L | W | H | ||||||
| FBC-MSO | 11/√3 | 500 | * | 210 | 800 | 1105 | 135 | upon request |
| FBC-MSO | 11/√3 | 600 | * | 210 | 920 | 1225 | 135 | upon request |
| FBC-MSO | 12/√3 | 500 | * | 210 | 780 | 1085 | 135 | upon request |
| FBC-MSO | 12/√3 | 600 | * | 210 | 900 | 1205 | 135 | upon request |
| FBC-MSO | 11 | 417 | * | 185 | 800 | 1105 | 135 | upon request |
| FBC-MSO | 11 | 500 | * | 210 | 830 | 1135 | 135 | upon request |
| FBC-MSO | 11 | 556 | * | 210 | 910 | 1215 | 135 | upon request |
| FBC-MSO | 11 | 667 | * | 210 | 1050 | 1355 | 135 | upon request |
| FBC-MSO | 12 | 417 | * | 185 | 850 | 1155 | 135 | upon request |
| FBC-MSO | 12 | 500 | * | 210 | 840 | 1145 | 135 | upon request |
| FBC-MSO | 12 | 556 | * | 210 | 910 | 1215 | 135 | upon request |
| FBC-MSO | 12 | 667 | * | 210 | 1050 | 1355 | 135 | upon request |
| FBC-MSO | 21/2 | 334 | * | 145 | 840 | 1145 | 135 | upon request |
| FBC-MSO | 21/2 | 417 | * | 185 | 830 | 1135 | 135 | upon request |
| FBC-MSO | 23/2 | 334 | * | 145 | 820 | 1125 | 135 | upon request |
| FBC-MSO | 23/2 | 417 | * | 185 | 780 | 1085 | 135 | upon request |
| FBC-MSO | 22/√3 | 334 | * | 145 | 850 | 1155 | 135 | upon request |
| FBC-MSO | 22/√3 | 417 | * | 145 | 1000 | 1305 | 135 | upon request |
| FBC-MSO | 22/√3 | 500 | * | 185 | 930 | 1235 | 135 | upon request |
| FBC-MSO | 24/√3 | 334 | * | 145 | 840 | 1145 | 135 | upon request |
| FBC-MSO | 24/√3 | 417 | * | 145 | 980 | 1285 | 135 | upon request |
| FBC-MSO | 24/√3 | 500 | * | 185 | 910 | 1215 | 135 | upon request |
| FBC-MSO | 12 | 1000 | * | 380 | 1200 | 1505 | 135 | upon request |
Working Environment
1
Indoor or outdoor use.
2
Altitude: below 2000m.
3
Environment Temperature: -45℃ to +45℃.
4
Radial thickness of ice: less than 10mm.
5
Earthquake fortification class: 8.
6
Pollution class: III, IV.
Cautions
1
Ensure good ventilation for indoor use. The minimum face of the capacitor should face toward the sunlight for the longest duration.
2
When mounted on a rack, spacing between layers must be more than 50mm, and row spacing must be more than 150mm. The bottom of the capacitor should be no less than 200mm away from the ground for indoor use, and no less than 300mm for outdoor use. The distance between the bottom and the roof shall not be less than 1000mm.
3
Use soft connections for capacitors. The connection should be secured by clamping two wrenches up and down. The tightening torque must be less than 52N·m.
4
Position the label facing outward to facilitate inspection.
5
While mounting the capacitor on an insulation rack, the electric potential must be fixed.
6
Connect the capacitor shell to the ground, ensuring a reliable ground contact.
Notes
1
The capacitor must feature internal fault protection, over-current, over-voltage, and no-voltage protection.
2
When the voltage on the busbar exceeds the specified load, the capacitor is not allowed to connect.
3
Following network disconnection, reconnection is not permitted within 10 minutes.
4
Capacitor discharge occurs automatically after network disconnection.
5
Before contacting any conductive part of a disconnected capacitor, even if it has automatically discharged, the outlet end must be short-circuited and connected to the ground wire for a separate discharge.
6
Frequently check whether all electrical connection points maintain good contact. Any issues should be handled promptly to prevent accidents.
Repair and Replacement
1
Leaking shell or terminals.
2
Capacitance loss exceeding 6%.
3
Ground contact is shorted out.
4
Insulating resistance to the ground is less than 2000 megohms.
5
Cracks on the capacitor terminals.
6
Bulging of the capacitor shell.
7
Operating lifespan exceeding 10 years.
Frequently Asked Questions (FAQ)
What are the environmental requirements for these HV power capacitors?
These capacitors are designed for both indoor and outdoor use. They operate efficiently at altitudes below 2000m, within ambient temperatures ranging from -45℃ to +45℃. They are rated to withstand a radial ice thickness of less than 10mm, earthquake fortification class 8, and pollution classes III and IV.
How should the capacitors be spaced and mounted during installation?
When mounted on a rack, the minimum vertical spacing between layers must exceed 50mm, and horizontal row spacing must exceed 150mm. The bottom of the capacitor must be at least 200mm off the ground for indoor installations (300mm for outdoor) and at least 1000mm away from the roof.
What safety precautions must be followed before handling a disconnected capacitor?
Even though the capacitor automatically discharges after network disconnection, you must manually short-circuit the outlet end and connect it to a ground wire for a separate, manual discharge before touching any conductive parts.
When does a capacitor require repair or replacement?
A capacitor must be repaired or replaced immediately if it exhibits leaking, capacitance loss of more than 6%, shorted-out ground contact, insulation resistance to ground below 2000 megohms, cracked terminals, a bulged shell, or if it has been in operation for over 10 years.
What are the connection requirements for the terminals and shell?
Capacitors require soft connections. Tightening should be done using two wrenches (one up, one down) with a torque of less than 52N·m. Additionally, the capacitor shell must be securely connected to the ground with reliable contact.
How long must you wait to reconnect the capacitor after a network disconnection?
After a network disconnection, you must wait at least 10 minutes before attempting to reconnect the capacitor to allow the automatic discharging process to complete safely.