Reactive Power Compensator

voltage range: 3-66kv
capacity:2-300Mvar
High quality competitve price
800 sets of SVC are running, ranking No.1
Reactive Power Compensator

There are more than 800 sets of SVC are running, ranking No.1 in the world.

RXPE is a famous manufacturing base of Static Var Compensator-SVC in China, and is also the owner holding the most SVC patented technologies in China.
RXPE is specialized in development and provides SVC products to users at home and abroad, it takes the lead in realizing light triggered trigger method in China, various technologies from ETT to LTT are complete. It holds highly efficient heat pipe cooling and fully closed pure water cooling method which possess domestic first-class, international advanced SVC special high-voltage full loading test centre, and advanced DSP digital control technology.
RXPE’s SVC is the only SVC passed professional ISO9001 certification in China, and produced international using standards.

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Our application Performance is listed on Reference List on the left of home page.

SVC-Problem Solving
--Electric Arc Furnace
-- Rolling Mill
-- Power supply of electric locomotive
-- Hoist
-- Long-distance power transmission--
Secondary substation in city (66/110 kV)

Principle of TCR Type SVC
Acording to the figure, SVC connecting to the system, capacitor provides fixed capacitive reactive power Qc, the current passing through the compensation reactor determines the size of inductive reactive power QTCR outputted by the compensation reactor. Inductance reactive power offset the capacitance reactive power. As long as the reactive power of the system Qn=Qv (required by the system)-Qc+ QTCR=constant (or 0), it can be realized that power factor of power grid is a constant. There is almost no voltage fluctuation, the key is to accurately control triggering angle of the thyristor to obtain the required current passing through the compensation reactor. The converter and control system of the thyristor can achieve this function, collecting current value and voltage value of reactive power of the bus to compose the value of reactive power. Compared with the set constant value of reactive power (may be 0), the magnitude of triggering angle is calculated, and the required current pass through the thyristor is got.
As for asymmetric loads, using theory of Steinmets to achieve phase regulation, eliminate negative sequence current, and balance three-phase of the power grid.
SVC-Service Guide
Complete service
-- System Design
-- SVC Manufacture
-- Equipment Design and Civil Design
-- Mounting supervision
-- Commissioning
-- Training
-- Spare Parts Supply
-- Maintenance
-- Remote Monitoring

SVC-Parameters
Item
Specification
Voltage Level (kV)
6
10
27.5
35
66
TCR rated capacity (Mvar)
6-300
Structure of thyristor valve
Standard frame structure
Cooling method of thyristor
Heat pipe natural cooling or water cooling
Model of thyristor
Electricity triggered thyristor (ETT) or light
triggered thyristor (LTT )
Triggering method
Photoelectricity triggered or light triggered
Control system
DSP full digital control system
Control method
Reactive power
Regulation scope of reactive power
-100% - +100%
Regulation method
Phase-splitting regulation
Response time of regulation system
<10ms
Noise level
Natural cooling,without noise
Power supply voltage of auxiliary power grid
380V±15%
Service life
>20 years


SVC-Composition
-- Cabinet structure, is used for real-time calculation of reactive power of the power grid, control magnitude of triggering angle of thyristor, thereby control the amount of compensation of reactive power.
A Full digital control system:
B Thyristor converter:
--Frame structure.
-- Receive signal from the control system, change size of the triggering angle of thyristor, produce corresponding reactive power compensation current.
C. Compensation reactor:
--Tubular dry type, double coils at top and bottom, natural cooling.
--When the current passing through the thyristor flows through the compensation reactor, it generates the inductive reactive power required by the system, which is used to balance the reactive power of the system and maintain stability of bus voltage and power factor.
D High order harmonics filtering device:
-- Composing: reactor, power capacitor, resistor (used when there is a high-pass channel), these three components composes filtering channel, multiple filtering channels can be composed according to system requirements, which are used to filter out corresponding high order harmonics, respectively.
-- Structure: The reactor is tubular dry type, with double coils at top and bottom, natural cooling, Frame structure is used for power capacitor installation, natural cooling is used.
-- Function: The high order harmonics running through the system is eliminated, capacitive reactive power to the system is provided, the power factor is improved.
-- Connection: Each filtering channel is connected to the bus of the system through switch cabinet (can also be connected directly).