Product Description
Overview:
Applying the rated voltage 6KV-35KV AC power system, TCR-type SVC
can dynamically and continuously adjust reactive power, absorb
harmonic, and reduce voltage fluctuations and voltage flicker. The
device improves power factor, decreases losses, and improves the
transmission ability of power network and users’ voltage quality,
which brings enormous economic and social benefits for
users.
Working
principle
TCR-type SVC is consisted of thyristor controlled reactor (TCR) and
fixed capacitor (FC). The capacitor supplies fixed capacitive
reactive (Qc) in the branch of TCR consisting of phase controlled
reactors and thyristor valve group. Under the function of control
signal, and it is equal to a variable inductance. By changing the
reactor current. it changes the inductive reactor power (Qtcr) of
the TCR branch output, and the inductive reactor power and the
capacitive reactor power cancel each other. When the system is
reactive power (Qn=Qv-Qc+Qtcr=0), the power network factor is
constant to protect the voltage stability.
Product
Selection
SVC selection
UNT-TCR-SVC-1/2-3
UNT------Baoding UNT Electric Co., Ltd.
TCR------Thyristor controlled reactor(TCR)
SVC------SVC product code
1---------Rated capacitance of SVC, MVar
2---------Rated voltage of SVC, 6-35KV
3---------Total installation capacitance of filter capacitor
bank, unit: Mvar
Thyristor valve block selection:
UNT-1-2-3
UNT--------Baoding UNT Electric Co., Ltd.
1---------TCRF indicates TCR thyristor valve block and TSCF TSC
thyristor valve block
2---------Voltage grade of thyristor valve block
3---------S indicates water cooling, R thermal pipe cooling and X
sectional bar cooling
Structure
Digital control system
Structure: Standard Cabinet Structure
Functions: The controlling cabinet is used for real-timely
calculating the reactive power of the power network, controlling
the size of the thyristor firing angle, and controlling the size
of the compensation amount of reactive power. The protection
cabinet is used for the protection of the capacitor bank and
phased reactor.
Thyristor Valve Group
Thyristor Valve Group receives the signal of the controlling
system, changes the size of the thyristor firing angle, and
produces the corresponding reactive compensation current.
High-voltage thyristor can be domestic manufactured or imported
as per the request of users. High-frequency constant-current loop
is self-created energy, with trigger monitoring, BOD protection
and other functions.
Compensation phase-controlled reactor
Structure: the reactor is air-core dry-type reactor, double
wilding, natural cooling
Functions: The current passing through thyristor passes the
compensating reactor, the device produces the inductive reactor
for the system, the device can balance the capacitor reactor of
the system and stabilize the bus voltage.
High Harmonic Filtering Installation
The three parts including reactor, electrical capacitor and
resistors (only for high pass channel) consists a filtering
channel. According to the system requirements, the device can
make up several filtering channels for filtering the
corresponding high harmonic wave.
Structure: the reactor is air-core dry-type reactor and natural
cooling. Electrical capacitor is shelf and natural cooling.
Function: The device can eliminate the high harmonic wave passing
though system, provides the capacitor reactive power to system,
and increases power factor.
Main Technical
Indexes
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Working conditions
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Single at collection terminals
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PT rated voltage:AC 100V
CT rated current:AC 5A
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Control power supply
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DC220V/10A and AC220V/10A
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Environment requirement
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Installation environment:
Control cabinet,protective cabinet and thyristor valve
blocks are of indoor installation other equipment may be
installed indoor or outdoor.
Ambient temperature:-25℃-+45℃
Relative humidity:5%-95% (at 25℃)
Altitude: below 2,000m(over 2,000m special requirements are
needed for ordering)
Contaminant: Level IV
Locations without fine metal particles, conductive dusts,
corrosive gas in air and violent vibration
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Items
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Technical index
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System voltage level(kv)
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6-35
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TCR rated capacitance(MVar)
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1-150
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Control system response time(ms)
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≤20
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System response period(ms)
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≤30
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Firing angle scope
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100°-165°
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Thyristor valve block structure
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Open combined modular
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Cooling method of thyristor valves
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Thermal pipe cooling or full-closed deionized water cooling
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Firing method
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opto-electric firing
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Redundant thyristor(pc)
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6-10kv:1
27.5-35kv:2
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Control system
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DSP full-digital control system
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Regulation method
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Three-phase/phase independent regulation
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Operation mode
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Manual/ automatic
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Control mode
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System based:
1.Quick admittance control
2. Constant voltage control
Load based:
1.Voltage priority, power factorcontrol
2.Constant reactive power control
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TCR main circuit structure
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Delta connection
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FC main circuit structure
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Y connection
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Branch filters
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Branch filter configured according to system requirements
Filtering harmonic orders(order 2-order 13)
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Communication
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Communication interface
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RS-485 or ethernet
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Communication Protocol
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Modbus RTU or 104
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Operation interface
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User-friendly man-machine interface
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10-inch colored touch screen display
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Selectable Display items on touching screenmain
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Interface:Running status and running parameters operation
interface, parameter setting interface, running record
interface and fault alarm interface
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Features
1.The sampling control system adopts the multiprocessor with
digital parallel processing technology, it has high control
precision and fast dynamic response to insure the step response
time below 20ms.
2.The device achieves the multiple sets of TCR coordinated control
at the same segment bus to avoid oscillation and improve the system
stability.
3.The device controls algorithm of different users (system and
load) avoids the resonance of the system and improves the overall
reliability of the system.
4.With the independent research and development, the thyristor
valve group adopts the modular design to supply integrated
structure for the various capacitors’ device.
5.The cooling mode of the thyristor valve group is heating pipes
cooling and fully closed deionized water cooling.
6.We own the patents of thyristor dynamic security monitoring and
protection technology. The device guarantees more reliable
operation of the high power thyristor valve bank in
series.
7.The power of the thyristor trigger unit adopts patented
technology of the high-frequency constant current source power
supply and achieves the anti-jamming capability and solves the high
and low voltage insulation isolation problem.
8.With flexible controlling mode, the users can set it by
themselves according to the site requirement. The device can be
adjusted by three-phase and spilt phase.
9.The device can control coordinately the high-voltage and the low
voltage dynamic reactive power compensation to improve the overall
operating efficiency.
10.With independent intellectual property rights, the wind farm
reactive power flow controller can achieve the optimized control of
the wind farm reactive power flow.
11.The self-researched capacitor branch protection unit can fastly
and accurately achieve all the protection functions for the
capacitor bank.
12.The device makes program design based on the monitored harmonic
wave data in site and simulates strictly.
Applications
Wind field, electrical arc furnace, Metallurgy, Electrified
railway, Hoister, Coal, Steel plant, Electric power substation,
Chemical, oil, Mine, Building
| Country: |
China |
| Model No: |
-
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| FOB Price: |
5000 ~ 50000 / Set ( Negotiable ) (Negotiable)
Get Latest Price
|
| Place of Origin: |
- |
| Price for Minimum Order: |
5000 per Set |
| Minimum Order Quantity: |
1 Set |
| Packaging Detail: |
wooden or as customers' requirements |
| Delivery Time: |
more or less 20 days |
| Supplying Ability: |
15 Set per Month |
| Payment Type: |
T/T, L/C, Western Union, Money Gram, PayPal |
| Product Group : |
reactive power compensation
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