Key Features
Product Overview
BGMJ cylindrical self-healing low-voltage shunt capacitors apply to power factor correction for 50/60Hz low voltage power systems, for local & centralized automatic compensation. It reduces reactive loss and optimizes voltage quality, a nationally recommended energy-saving product. Compliant with GB/T 12747 and IEC 60831-1/2.
Main technical parameters
Rated Voltage: 0.23~1.14kV
Rated Capacity: 1~60kvar
Rated Frequency: 50Hz or 60Hz
Capacitance Tolerance: -3~5%
Active Power Loss: ≤1.2W/kvar
Voltage Withstand Between Poles: 2.15Un for 5 seconds
Maximum Permissible Overvoltage: 1.1Un
Maximum Permissible Overcurrent: 1.3In Self-discharge
Characteristic: The residual voltage shall drop from √2Un to below 50V within 3 minutes after the capacitor is de-energized.
Compliant Standards: GB/T 12747, IEC 60831
Technical Parameters
Type BSMJ |
Rated Voltage (kV) |
Rated Capacity (kvar) |
Rated capaci tance(μF) |
Rated current (Three/Single phase)(A) |
Overall dimension(mm) |
Screw size |
Model |
0.25-5-3YN(1) |
0.25 |
5 |
255 |
6.7/20 |
Φ76*240 |
M12 |
A/B |
0.25-10-3YN(1) |
0.25 |
10 |
510 |
13.3/40 |
Φ86*240 |
M12 |
A/B |
20/0.25-15-3YN(1) |
0.25 |
15 |
764 |
20/60 |
Φ106*240 |
M12 |
A/B |
0.25-20-3YN(1) |
0.25 |
20 |
1019 |
26.7/80 |
Φ116*240 |
M16 |
A/B |
0.25-25-3YN(1) |
0.25 |
25 |
1274 |
33.3/100 |
Φ116*240 |
M16 |
A/B |
0.25-30-3YN(1) |
0.25 |
30 |
1529 |
40/120 |
Φ136*290 |
M16 |
A/B |
0.45-5-3 (1) |
0.45 |
5 |
79 |
6.4/11 |
Φ76*240 |
M12 |
A/B |
0.45-10-3 (1) |
0.45 |
10 |
157 |
12.8/22 |
Φ76*240 |
M12 |
A/B |
0.45-15-3 (1) |
0.45 |
15 |
236 |
19.2/33 |
Φ86*240 |
M12 |
A/B |
0.45-20-3 (1) |
0.45 |
20 |
315 |
25.7/44 |
Φ96*240 |
M16 |
A/B |
0.45-25-3 (1) |
0.45 |
25 |
393 |
32.1/56 |
Φ96*290 |
M16 |
A/B |
0.45-30-3 (1) |
0.45 |
30 |
472 |
38.5/67 |
Φ106*290 |
M16 |
A/B |
0.45-40-3 (1) |
0.45 |
40 |
629 |
51.3/89 |
Φ116*290 |
M16 |
A/B |
Wiring Drawing
Service Conditions
Reclose Locking Protection: After capacitor disconnection, re-energization is permitted only when the residual voltage drops to 10% of the rated voltage. The normal discharge time is approximately 200 seconds. The controller therefore features a reclose locking timer to prevent premature switching.
Rapid Discharge Requirement: When a conventional controller is used, an additional rapid discharge device is required. This requirement does not apply when equipotential switching switches are adopted.
Altitude：Suitable for installation at altitudes of up to 2,000 m.
Ambient Temperature: −25°C ~ +50°C, 24-hour average temperature: ≤ +40°C, Annual average temperature: ≤ +30°C
Ventilation Requirements: Capacitors must operate in a well-ventilated environment. Installation and operation in sealed or poorly ventilated spaces are prohibited.
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