High Voltage AC Filter Complete Set
General
This guide is intended for frequency of 50 Hz, voltage 6 ~ 35kV, AC
power system reduction of harmonic content, and improve the power
factor.
In an ideal power system, power is transmitted by a
single fixed frequency (50Hz or 60Hz), sine wave voltage and
current delivered to the user. But if the impact of non-linear load
or load, such as rectifier equipment, frequency conversion
equipment, electric arc furnaces, electric railways and other
access systems, will produce a large number of high harmonic
currents cause system voltage and current waveform distortion,
resulting in power system harmonics pollution of the power
equipment and electrical equipment hazard.
When the voltage distortion rate than the standard requirements,
the ways will have to be taken to control harmonic filtering. High
Voltage AC Filter is an economical and practical solution.
High Voltage AC filter device mainly contains the
following equipment: high voltage filter (parallel) capacitor,
filter (in series) reactors, resistors, discharge coil, zinc oxide
arrester, grounding switch, connecting wires, pillar insulator,
cabinet or install the framework, fence. According to the needs of
users, capacitor switching and protection devices can be included
in the package delivery.
High voltage AC filter device can set the single tuning circuit
with the characteristic harmonics and high-pass filter circuit with
the high harmonics according to test inspection data.
High voltage AC filter devices based on its configuration, can
double as the role of reactive power compensation.
High voltage filter capacitor, filter reactors, resistors are the
main components of filter device to generate high harmonics of the
low-impedance channels.
In parallel with the capacitor, the discharge coil directly used in
capacitors, disconnected from the power grid, will be in the 5s
reduced voltage between capacitor terminals down to 50V , the
discharge coil can provide for the signal of secondary protection.
Zinc-Oxide Arrester is mainly used to limit over-voltage switch.
Grounding switch is mainly used to ground capacitor
terminals when maintenance, to ensure the safety of maintenance
personnel.
Cabinet, electric display device are mainly used to show the
switching state of devices, and to provide the determined
conditions for the five anti-locking cabinet achievement.
Application
Lower harmonic content of the system, and improve the quality of
power supply voltage to protect the safety of other electrical
equipment.
Improve power system power factor.
Reducing power consumption
Features
High-performance capacitors, reactance components are used to
ensure device stability.
To check on all the harmonics, to ensure that no resonance and
harmonic amplification phenomenon.
Taking into account the needs of reactive power compensation,
improve power factor. Circuit quality factor optimization settings,
try to avoid detuning the device status. Installation, the company
may send technical personnel on-site guidance
Model
The meaning of symbols: for example: TALG10-6000/200/5-AKW
T: Complete installation
AL: AC filter G: cabinet,
J: frame
10: System Nominal Voltage 10kV
6000: rated capacity 6000kvar
200: by the single high voltage shunt capacitor capacity 200kvar
composition
5: Characteristics of harmonic number for the 5
A: Star Connection (B: Y-Y connection)
K: open triangle voltage protection (C: voltage differential
protection L: neutral unbalance current protection)
W: Outdoor
Technical Data
Systems rated voltage: 6,10,35 kV
Capacitor voltage rating selection: (4.2,4.4,4.6,4.8,5.0,5.2,5.4),
(7.0,7.4,7.8,8.2,8.6,9.0), (12.0 , 12.6,13.2,13.8,14.4,15,15.6),
according to user requirements can be negotiated.
Rated capacity of a single capacitor selection: 100,150,200,250,334
kvar, according to user requirements can be negotiated.
Rated frequency: 50Hz
Rated Capacity: 1000,1200,2400,3600,4800,6000,7200,10000 kvar,
special specifications can be negotiated
Characteristic harmonic frequency: 3,5,7,11,13.
Insulation level: 35/75kV
Executive Standard: GB11024 << Shunt capacitors for ac power
systems under nominal voltage above 1kV >>
JB/T7111 <<High Voltage Shunt Capacitor Installation>>
GB50227-95
Protection
The capacitor unit with internal fuse is suggested , no addit
