Power Quality
Static Var Generator (SVG)
SVG Wallmount & SVG Cabinet Mount
www.ge s-group.com
Power factor is a measure of how effectively your electrical
equipment converts electrical current into useful output power, such
as heat, light or mechanical motion.
Active Power (P): Is the power used by a device to produce useful work. It is expressed in Watt (W)
or KiloWatt (kW).
Reactive Power (Q): Is the power that does not produce work but is needed in an alternating-current
transmission system to support the transfer of active power over the network by temporarily storing
energy in inductive and capacitive elements. It is expressed in Var or Kilovar (kVAr).
Apparent Power (S): Is the power resulting by the vector sum of both the active and reactive power.
It is expressed in Volt Amperes (VA) or KiloVolt Amperes (kVA).
S (kVA)=√ P(kW) 2+Q(kVAr) 2
Displacement Power Factor (cos φ): Is the cosine of angle between active and apparent power.
When the DPF reaches unity, it means that all the fundamental current that flows through the
electrical equipment produces work. This factor does not consider harmonic currents.
P(kW)
COSφ =
P(kW)
Q(kVAr)
Benefits of addressing low
Power Factor
Enables your business to lower its
ongoing kVA demand charges and/or
reactive charges, saving your business
money.
Increased capacity available to serve
actual working power requirements
Higher and better quality voltage
regulation
Lower transmission and distribution
losses in your electrical system
Reduces the threat of operational
downtime caused by the overloading of
your electrical assets.
02 G.E.S GROUP - STATIC VAR GENERATOR (SVG)
S(
kV
A)
Q(kVAr)
IN T RO DUC T IO N
Introduction to Power Factor
Implications of low Power
Factor
Low power factor can lead to lower than
‘normal’ voltages within a site and
consequently present unreliable
equipment performance.
Many electricity network companies
charge commercial and industrial
customers when power factor falls below
0.95
Low power factor can lead to stressing of
the internal electricity infrastructure. This
may cause unnecessary overheating and
equipment degeneration.
Ignoring power factor issues can increase
costs for new installations, because of the
need to oversize cables, switchboards and
other electrical equipment.
IN T RO DUC T IO N
A Revolutionary New Power
Factor Control System
Static Var Generator (SVG)
Automatic power factor correction equipment is
broadly applied in industry to ensure the
electrical network is utilised to its best capacity.
The usual form of such power factor correction is
an automatic controller that monitors one
incoming phase to a plant and switches banks of
capacitors to try and maintain a target power
factor.
reduced. Contactors regularly fail and overloaded
capacitors leak and present a real fire risk.
Sinexcel’s SVG is an entirely new approach to
power factor correction. The SVG utilises a high
speed three level inverter that reacts to changes
in reactive power, injecting corrective reactive
power into the system. Full correction is made in
¾ of a cycle. This rapid response provides stable
accurate real-time power factor correction
without the draw backs of traditional capacitor
based systems. SVG can continuously adjust
reactive power dynamically and bi-directionally
(-1 to +1). There is little chance of system
resonance and even under low voltage conditions
SVG
will
provide
full
reactive
power
compensation.
The problems with capacitor based automatic
power factor correction are vast and varied. It is
slow to react to load changes so the system is
constantly in a state of over compensation or
under compensation. In today’s harmonic rich
environments the capacitors suffer (even with
harmonic blocking chokes), system resonance is a
risk and the life expectancy of the system is
Traditional two-level inverter circuit
Innovative three-level inverter circuit
SVG Operating Principal
Sinexcel SVG checks the load current through
the external CT, and performs computing
through the external DSP to analyse the reactive
content of the load current.
After that, it controls the PWM signal generator
based on the settings to send control signals to
the internal IGBT. In this way, it generates
reactive compensation current to implement
dynamic reactive power compensation.
Cos > 0.99
G.E.S GROUP - STATIC VAR GENERATOR (SVG) 03
PROS & CO N S
The Pros and Cons
Conventional
Capacitor System
V
New SVG
Capacitor based systems are based on
“staging in” and “staging out” banks of
fixed capacitance. This means the
amount of correction is available only
in multiples of the fixed banks resulting
in over and under compensation.
The SVG uses inverter technology to
inject an infinitely variable amount of
corrective reactive power. This ensures
the power factor is always at setpoint
with no over or under correction.
Capacitor based systems are slow to
respond. The power factor controller
must be tuned to stop cycling of the
“staging in” and “staging out” process.
The delay is further increased by the
time taken for the bank contactor to
pull in.
The complete response time of the
SVG is less than 15mS and the dynamic
response time is less than 50uS. This
makes the SVG perfect for sites with
rapidly changing power factor.
Capacitor based systems can encounter
resonance.
The SVG uses inverter technology so
resonance is eliminated.
Conventional systems can only correct
an inductive (lagging) load.
The SVG can correct both an inductive
(lagging) or capacitive (leading) load.
Conventional systems are manufactured
by collectively installing blocking chokes,
capacitors, and switching contactors
into an enclosure. This takes up a large
amount of switchroom real estate.
The inverter technology used in the
SVG is very compact and typically
requires less mounting area than a
conventional system.
The performance of power factor
correction capacitors is greatly impacted
by the grid voltage level. Low voltage on
the grid results in poorer compensation
performance from the capacitors.
The SVG performance is virtually
unaffected by low grid voltage levels.
Capacitor based systems require frequent
switching of the stages to achieve
correction for changing power factor
thus resulting in a shortened service life,
in some cases as low as 3 years.
The SVG has low losses and needs
little maintenance. The service life
is expected to be greater than 10
years.
04 G.E.S GROUP - STATIC VAR GENERATOR (SVG)
PROS & CO N S
SVG Performance
Quick Response
The system reactive power compensation
can be completed immediately, right at the
startup of the Sinexcel SVG.
Ideal Compensation
Sinexcel SVG releases compensation
current that has the same capacity - but an
opposite phase, as system reactive current.
Real-Time Tracking
Sinexcel SVG can make dynamic and
real-time compensation based on the
changes of system reactive current.
Reverse Overlapping
After the compensation current is reversed
in its direction, the system reactive current
overlaps with the reactive current released
by Sinexcel SVG.
G.E.S GROUP - STATIC VAR GENERATOR (SVG) 05
FE AT URE S
SVG Features
Compact Modular Design for
Ultimate Flexibility
Outstanding Reactive Power
Compensation
3 level topology
Mix and match modules for optimum sizing
Stepless Reactive power compensation:
COSφ>0.99
Each module has all functions and can operate
independently
Three-phase unbalance compensation
Wallmount and rackmount options
Capacitive and inductive compensation:
-1 to + 1
Customizable cabinet designs
Stable and Quick Reactive Power
Compensation
Real-time compensation, with the overall
response time less than 15 ms. Dynamic
reaction time is less than 50µs.
Standardized design for high quality and
reliability
Easy to commission, use, transport, and
maintain
Combinations for any Industrial
Condition
SVG for reactive power compensation
Free of over-compensation, undercompensation, and harmonic resonance. The
compensation capacity is equal to the installed
capacity and is not affected by voltage drop.
ASVG for reactive power compensation and
limited harmonic compensation
SVG+AHF reactive power compensation
and harmonic compensation
Long Service Life
The designed service life is 100,000 hours,
without any maintenance.
Structural Dimensions
MODEL
sinexcel 030/050
DIMENSIONS
(W X H X D) (MM)
WEIGHT
(KG)
500*192*590
35
SVG 44L/RL
sinexcel 100 SVG
MODEL
sinexcel 050 SVG
44L/HL
500*270*550
44L/RL
06 G.E.S GROUP - STATIC VAR GENERATOR (SVG)
48
DIMENSIONS
(W X H X D) (MM)
WEIGHT
(KG)
500*585*197.1
35
S PEC IFICAT IO N S
Technical Specifications
ITEM
400V
Sinexcel SVG 030
Sinexcel SVG 050
Sinexcel SVG 100
System Parameters
Rated input line voltage
400V
Input phase voltage range
-40%~+20%
Power grid frequency
50Hz/60Hz (range: 45Hz ~ 63Hz)
Parallel operation
Unlimited
Overall efficiency
>97%
Power grid structure
3P3L/3P4L
CT
150/5 ~ 10,000/5
Power grid structure
3P3L/3P4L
Performance Indicators
Single-module compensation capacity
30/50kvar
100kvar
Response time
<15ms
Target power factor
Adjustable from -1 to +1
Cooling mode
Smart air cooling:
Smart air cooling: 220L/sec
405L/sec
Noise level per module
<65dB
Communications and Monitoring Capabilities
Communications ports
RS485, CAN, and network port
Communications protocols
Modbus and PMBus
Alarm
Monitoring
Available
Monitoring module, and optional centralized monitoring modules
Mechanical Properties
Mounting type
Cable entry mode
Dimensions (W x D x H) (mm3)
Module net weight
Color
Rack-mounted, wall-mounted, and cabinet
Cabinet
Rear entry for rack-mounted type; top entry for wall-mounted type; top or bottom
entry for cabinet
500*590*192 (Rack-mounted)
510×270×500 (cabinet)
500*585*197.1 (wall-mounted type)
35kg
48kg
True color of plate coated with aluminum-zinc alloy,
and black for wall-mounted type (customizable)
Environment Requirement
Altitude
Operating temperature
Relative humidity
Protection class
1500 m. Between 1500 m to 4000 m, according to GB/T3859.2,
the power decreases by 1% for every additional 100 m.
-10 ~ 40 ºC
5% ~ 95%, non-condensing
IP20 (other IP classes are customizable.)
G.E.S GROUP - STATIC VAR GENERATOR (SVG) 07
GES Group is the UK representative and distributor for the innovative Active Harmonic
Filters and Static VAR Generators from the international market leader, Sinexcel.
Sinexcel are one of the world’s largest suppliers of Active Harmonic Filters and Static
VAR Generators, and lead the field in performance and design.
With a R&D Centre of more than 100 people, and a 14,500m2 manufacturing centre,
Sinexcel is a high-tech enterprise, specialising in intelligent power quality and control
technologies, and concentrating on delivery of high quality products. With a focus on
excellent customer support and service, Sinexcel is a great fit with GES Group.
Head Office
Grants Electrical Services
Pennybridge Industrial Estate
Ballymena
BT42 3HB
Tel: 02825 656406
Email: info@grantselectrical.co.uk
GES Automation
Trade Counter
Pennybridge Industrial Estate
Ballymena
BT42 3HB
Tel: 02825 656406
E: counter@grantselectrical.co.uk
Grants Electrical Services, Mallusk
Hyde Park Industrial Estate
McKinney Road
Mallusk
BT36 4PX
Tel: 02890 835567
E: rmchugh@grantselectrical.co.uk
GES Automation, Mallusk
Trade Counter and Electric Panel Building
Hyde Park Industrial Estate
McKinney Road
Mallusk
BT36 4PX
Tel: 02890 835567
E: rdpaul@grantselectrical.co.uk
www.ges-group.com