Customization: | Available |
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Application: | Power, Electronic, Lighting, Oil Filled Electrical Transformer |
Phase: | Three |
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I. General Provisions
1. SVR line automatic voltage regulator is a device that ensures the stability of output voltage by tracking line voltage changes and automatically adjusting the device body ratio. It can automatically adjust the input voltage within the range of ±20%. It is particularly suitable for lines with large voltage fluctuations or large voltage drops. This feeder voltage regulator is installed in series in the middle and rear parts of 6kV, 10kV, and 35kV lines to adjust the line voltage within a certain range to ensure the user's power supply voltage and reduce line losses. In addition, the SVR feeder automatic voltage regulator is also suitable for substations where the main transformer does not have the ability to regulate voltage. This voltage regulator is installed on the outgoing side of the substation transformer to ensure the bus voltage on the outgoing side. It is widely used in the fields of rural power grids, urban power grids, oil fields, coal, chemical industry, substations, etc.
2. Main features
(1) The whole device has large capacity, low loss, small size, and is easy to install and maintain;
(2) It automatically adjusts the gear position of the three-phase on-load tap changer by tracking voltage changes, with reliable operation and high voltage adjustment accuracy;
(3) The voltage reference, action delay, allowable range, and number limit can be adjusted as needed, and the parameter setting is flexible and convenient;
(4) It displays the number of SVR on-load tap changer gear actions and the current gear, with the highest and lowest gear indications;
(5) It has gear upper and lower limit protection and action time limit functions, which effectively improves the reliability of the product;
(6) The controller has overvoltage drop and undervoltage protection functions. When the line is in overvoltage or undervoltage state, the controller automatically locks to ensure safe operation of the on-load tap changer
(7) The controller uses industrial-grade control chips with high reliability and strong anti-interference ability, and can adapt to harsh outdoor environments;
(8) It has an RS485 communication interface, and the controller parameters can be viewed and modified through the wireless communication module.
3. Product standards
1. Production design standards
JB8749-1998 General technical requirements for voltage regulators
GB1094-2013 Power transformers
GB/T6451-2008 Technical parameters and requirements for three-phase oil-immersed power transformers
GB/T17468-1998 Guidelines for the selection of power transformers
GB10230-2007 On-load tap changers
GB/T1058-1989 Guidelines for the application of on-load tap changers
DL/T572-2010 Power Transformer Operation Procedures
2. Acceptance Standards
The voltage at the installation point of the FSVR line automatic voltage regulator meets the national standard GB/T12325-2008 power supply voltage deviation standard: the absolute value of the positive and negative deviations of the power supply voltage of 35kV and above shall not exceed 10% of the rated voltage; the allowable deviation of the three-phase power supply voltage of 20kV and below is ±7% of the rated voltage; the allowable deviation of the 220V single-phase power supply voltage is +7%, -10% of the rated voltage.
IV. Main Technical Parameters
1. Environmental Conditions
1.1 Altitude: ≤2000m
1.2 Ambient temperature: -25ºC~+45ºC
1.3 Relative humidity: less than 90%
1.4 Anti-pollution capability: Class III
1.5 Installation inclination: < 2%
1.6 There are no dirty and corrosive media around the device that seriously affect the insulation performance of the device, and there is no fire and explosion hazard in the workplace, and no severe vibration.
Note: When the working environment exceeds the above conditions, the user needs to make special instructions when ordering.
2. Technical parameters
2.1 Rated capacity: 2000KVA, 3150KVA, 4000KVA, 5000KVA 6300kVA, 8000KVA 10000kVA, etc. Special specifications can be customized.
2.2 Rated voltage: 0.4KV, 6kV, 10kV, 35kV
2.3 Frequency: 50 Hz
2.4 Voltage adjustment range: -20%~+20%
2.5 Gear: 7-9 gears
2.6 Connection group: Ya0
2.7 Transformer oil brand: 25#, 45#
2.8 Cooling method: ONAN
2.9 Insulation level: LI60kV/AC25kV(6kV), LI75kV/AC35kV(10kV), LI200kV/AC85kV(35kV)
2.10 The SVR line automatic voltage regulator adopts a fully sealed corrugated oil tank with oil temperature indication and pressure release valve; the box has a built-in single-phase voltage to provide sampling signals and working power for the controller;
3. Three-phase oil-immersed on-load tap changer:
3.1 Resistance of each switch contact: related to the number of on-load tap changer levels, <500μΩ
3.2 Switch electric operation switching time: 10s
3.3 Switch transition resistance switching time: 15~24ms
3.4 Electrical life of switch contacts at rated capacity: >50,000 times
3.5 Mechanical life of switch: >500,000 times
3.6 Switch transition mode: single resistor or dual resistor
4. Voltage regulator controller
4.1 Working power supply: AC/DC 110-450V
4.2 Rated frequency: 50Hz
4.3 Maximum power consumption: 25W
4.4 Analog input: 2 voltages (0,250V)
4.5 Switch input: 10 empty contact inputs
4.6 Switch output: 2 (AC250V/380V l6A)
4.7 Measurement accuracy: Voltage (0.5%)
4.8 Anti-interference level: in accordance with IEC61000-4:1995 level
11KV Series On Load Tap Changer Oil Immersed Distribution Transformer Performance Parameters | |||||||||||||
High Voltage:11(6,6.3,10.5,11)KV Connection Symbol:D,yn11 or Y,yn0 Rated Frequency:50Hz/60Hz Low Voltage:0.4(0.415,0.433)KV Tapping Range of HV:±4x2.5% Insulation Level:LI75 AC35/AC3 |
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Rated power (KVA) |
Short-Circuit Impedance(%) | SZ18 (W) | SZ13 (W) | SZ11 (W) | No-Load Current (%) |
Sound pressure dB(A) |
Weight (kg) |
Overall Dimension(mm) | |||||
No-Load Loss | On-Load Loss | No-Load Loss | On-Load Loss | No-Load Loss | On-Load Loss | L | W | H | |||||
200 | 4.0 | 300 | 2090 | 340 | 2320 | 380 | 2900 | 1.0 | 58 | 980 | 1700 | 830 | 1180 |
250 | 350 | 2460 | 395 | 2740 | 440 | 3420 | 0.9 | 58 | 1130 | 1700 | 880 | 1230 | |
315 | 420 | 2950 | 475 | 3280 | 530 | 4100 | 0.9 | 60 | 1300 | 1790 | 930 | 1290 | |
400 | 520 | 3560 | 580 | 3960 | 640 | 4950 | 0.8 | 60 | 1480 | 1870 | 930 | 1340 | |
500 | 610 | 4250 | 680 | 4715 | 760 | 5890 | 0.8 | 62 | 1710 | 1900 | 1010 | 1370 | |
630 | 4.5 | 780 | 5225 | 860 | 5810 | 960 | 7260 | 0.6 | 62 | 1950 | 2000 | 1070 | 1470 |
800 | 900 | 6400 | 1010 | 7110 | 1120 | 8890 | 0.6 | 64 | 2080 | 2100 | 1100 | 1720 | |
1000 | 1090 | 7490 | 1220 | 8320 | 1360 | 10400 | 0.6 | 64 | 2180 | 2300 | 1120 | 1750 | |
1250 | 1260 | 8860 | 1400 | 9840 | 1560 | 12300 | 0.5 | 67 | 3150 | 2430 | 1190 | 1980 | |
1600 | 1540 | 10580 | 1720 | 11760 | 1920 | 14700 | 0.5 | 67 | 4220 | 2620 | 1260 | 2080 | |
2000 | 5.0 | 1805 | 13400 | 2040 | 14880 | 2270 | 18600 | 0.4 | 69 | 4600 | 2720 | 1300 | 2110 |
2500 | 2140 | 15550 | 2410 | 17280 | 2680 | 21600 | 0.4 | 69 | 5500 | 2820 | 1360 | 2170 | |
Note: The above parameters are only for designing and selecting reference, and the final parameters are subject to the actual product. |
Our company has a relatively strong production capacity and efficient marketing team.Products include 110KV,220KV large ultra-high voltage transformers and 35KV below various dry transformers,oil-immersed transformers,amorphous alloy transformers,pre-installed substation and various specifications of box transformer,furnace transformer,rectifier transformer,mining transformer and other special transformers.All products of the company have passed the routine,type and special tests of the National Transformer Quality Supervision and inspection Center and wuhan High Voltage Research Institute of the State Electric Power Corporation.The enterprise has passed IS09001:2015 quality management system certification;Jiangsu province enterprise measurement certification;At the same time,10KV,35KV class power transformers,box substation and the adoption of IEC certification.Product sales cover the national market,but also exported to Australia,New Zealand,India,Madagascar,Vietnam and other countries and regions.
1.Who are we?
We are transformer company, based in Jiangsu, China, start from 2007,sell to Domestic Market(80.00%),Southeast Asia(20.00%). There are all about 1200-1500 people in our company.