The document summarizes an LT step voltage regulator produced by Zhejiang Farady Electric Co., Ltd. It uses a thyristor contactless design to regulate voltage within 20 milliseconds. Key features include fast regulation speed without power supply fluctuations, long product life, flexible parameter adjustment, and protection against overcurrent, overvoltage, and undervoltage. The voltage regulator is available in single and three-phase models ranging from 10-90 kVA and is used to stabilize voltages for transmission lines.

1. LT step voltage regulator
No Contact design, linear voltage regulation
Regulating speed (<20ms)
Product Brochure
Zhejiang Farady Electric Co.,Ltd
ISO9001&14001 approval manufacturer

2. +++++Company introduction:
Zhejiang Farady Electric Co., Ltd., founded in 2006, is a high-tech company
specializing in the production of step voltage regulator. It specializes in the integrated
management of power quality and the development, production and sales of power
equipment.
The company is located in the Xiangyang Industrial Zone,In the past ten years, with
the concept of fine management, it has been made, enterprising, innovative and fast
rising, and the "Farady" single and three phase high voltage line voltage regulator is
well known as the leader of domestic voltage regulator.
Farady has a long and friendly cooperative relationship with American SEL, ICMI and
other transformer intelligent accessories manufacturers and relevant scientific
research institutions. It can track the world's advanced transformer design and
manufacturing intelligent technology. It has established long-term talent training and
technical cooperation with domestic universities and research institutes, and has
obtained a number of national patents. In accordance with the development policy of
"talent development and enterprise", a large number of high-quality management
talents and skilled scientific research elite have been brought together by
continuously introducing talents, training talents and developing talents.
+++++Application
In fact, there are always some transmission lines that are too long, even if the line
reactive power is compensated for the normal power factor, there will be a low end
voltage. Therefore, it is necessary to use a voltage regulator at the middle or end of
the line. This product is connected at the end of the line, stabilizing the back line

3. voltage.
++++Overview:
The LSVR low voltage automatic voltage regulator adjusts the output voltage
automatically according to the input voltage, improves the qualified rate of the voltage,
guarantees the quality of the power supply, and does not need to increase the
distribution of distribution transformer. The product allows short time overload, can
be used in combination with reactive power compensation and other equipment. It is
suitable for the situation of low voltage all kinds of user voltage unqualified. It solves
the problems of low voltage qualification rate and low power factor in distribution
network users. LSVR voltage regulating device of our company, the range of
regulating voltage deviation is satisfied and higher than national standard GB12325-
2008 "power supply voltage allowable deviation" and DLT 375-2010 "general
technical condition of outdoor distribution box" YD-T1270-2003 "contactless
compensation AC voltage regulator" and other power industry standards
+++++Work principal
There are some taps on the two side of the transformer, and the tap voltage is
matched with the thyristor switch, and the voltage Delta U of different sizes and
directions can be provided to the series transformer. The thyristor switch is
controlled by the LSVR controller. When the controller detects the voltage change of
the user side, the thyristor switch element is controlled. A series transformer is used
to adjust the voltage of the network, so that the voltage of the power network user
terminal is UZ =Ul + U. The U is positive, is called a step-up voltage, U is negative,

4. called buck regulator.
+++++Compare with the traditional product:
The traditional low voltage regulator manufacturer is a voltage regulator using a
carbon brush sliding or contactor type (split switch or vacuum contactor); because the
voltage loss in the voltage regulating shift will cause the reboot of the electric
equipment, and the contact time of the contactless voltage regulator is very short less
than 20ms; if the speed of the deep boost, such as -30%, adjust the gear speed Too
slow will lead to a high voltage, which is likely to burn back the electrical equipment.
Compare as follow ：
The mechanical contact voltage regulation of
the contactor or motor drives is limited.
Especially when the action is frequent, the life is
very short
The thyristor contactless voltage regulation is
designed to ensure stable operation for more
than 20 years.
Every shift of the contactor is more than 200ms,
which will result in the interruption of power
supply and stop the standby of electrical
equipment, which will seriously affect the
production and life.
Fast switching, zero shift (no more than 20ms),
ensure continuous power supply, and will not
affect the power supply of equipment.
The regulation should not be too fast, or the
adjustment period should not be too short,
otherwise the life of the product will be very
Speed regulation, equipment running every
second, every phase, to ensure that the
qualified rate of output voltage 100%!

5. short.
+++++Key components of LSVR
thyristor has many advantages, such as fast action, long life and good reliability. It
has been widely applied in power and railway industry and mining enterprises for
more than 40 years. The device is real, and the device with good performance price
ratio uses a SCR control device to quickly switch off the shift position, realizes the
voltage regulation function, and realizes the contactless switching control of the
current
.
+++++Product features
The low voltage automatic voltage regulator is connected to the power grid, and the
voltage is compensated for the terminal voltage is too low. The product has the
following characteristics:
(1) series compensation and voltage regulation, low loss, reasonable cost, moderate
volume, easy installation and maintenance.
(2) fast track voltage change and phase adjustment of each phase shift.
(3) the voltage reference and permissible range can be adjusted according to needs,
and the parameters are set flexibly and conveniently.
(4) shunt reactive power can be selected and

6. reactive power drop and loss can be reduced.
(5) no voltage drop and short interruption due to product causes will not affect normal
power consumption.
(6) the controller has overcurrent, overvoltage and under voltage protection. When
the line is in the overcurrent state, the controller automatically bypasses.
(7) the controller can not only control the voltage regulation function of the voltage
regulator, but also control the capacitor's phase compensation, and realize zero
crossing switching capacitor.
(8) the controller uses industrial control chip, high reliability, strong anti-interference
ability, can adapt to the outdoors bad environment;
(9) with RS485 communication interface, through the wireless communication
module in the distance from the installation point of 30m to view, modify the
parameters of the controller.
(10) any abnormal case can be switched to the bypass quickly, so as to ensure the
absolute continuity of power supply.
+++++Technical specification
Phase Single-phase Three-phase
Capacity 10kVA,20kVA,30kVA 30kVA,60kVA,90kVA
Rated voltage(Un) 0.22kV 0.4kV
Boost range 10%Un,15%Un,20%Un
Tap 2,3,4
The accuracy of
regulator
≤±3%
Response time ≤60s
Loss ≤2%
Bypass operation
When the voltage going well or fault, it will be automatically transferred to the
bypass operation.

7. Cooling method AN+AF
Type of protection
Over-current, quick-break, overload, over-voltage, under-voltage, over-
temperature
Communication
method
NFC or GPRS
Communication
provision
101 Standard
Installation method Outdoor rod installation
+++++Technical characters
1., fast zero crossing switching technology (shift loss time less than 20ms).
2., fast bypass technology; (bypass pressure loss time less than 20ms).
3 voltage regulation response time: < 200ms
Key features:
1. each phase per second voltage is fully qualified.
2. continuous power supply, voltage regulation without fluctuation;
3. long run anti harsh environment design
1.5,Installation

8. +++++Order instructions:
According to the application scheme, the range of voltage fluctuation of line voltage,
line current, length of the whole line and the cause of voltage fluctuation are
provided.
Copyright 2014 Farady Electric
Zhejiang Farady Electric Co.,Ltd
TEL:0086-577-61722510/61777258
Fax:0086-577-61777257
Http://www.farady.cn
Email:info@farady.cn
Xiangyang Industrial Zone,Liushi,Yueqing,Zhejiang,P.R.China