Shanghai Laiyang Electric Technology Co., LtdTransformer Turns Ratio TesterWith a wide variety of products, complete specifications, and advanced technology, it has received many positive reviews in the industry.

Shanghai Laiyang Electric Technology Co., Ltd. has passed the GB/ISO-9001:2000-ISO9000-2000 quality system certification, and its products have been appraised multiple times by the Shanghai Institute of Metrology and Testing. The company has established sales and after-sales service networks in more than 20 provinces, cities, and districts across the country, and its products serve major power plants, power plants, and many large domestic enterprises.
Shanghai Laiyang Electric Technology Co., Ltd. is committed to the research and development of new technologies and products throughout the year, continuously using earlier technologies for product improvement and new product development. We always pursue high safety, high reliability, and high-quality products in design and manufacturing.
Shanghai Laiyang Electric Technology Co., Ltd. has always adhered to the spirit of integrity and pragmatism, constantly striving and forging ahead, and taking power testing as its own responsibility. To seek development through technology, survival through quality, reputation through service, and efficiency through management, providing excellent services to customers and society.
Company philosophy: far sightedness, surpassing innovation!
Reputation purpose: Quality is as solid as stone, commitment is as hard as gold!

Shanghai Laiyang Electric Technology Co., Ltd. independently needs to have the following products
0.1HZUltra low frequency withstand voltage test device; Variable frequency series parallel resonant withstand voltage test device, without partial discharge test transformer, AC withstand voltage test transformer; High voltage reactor; High current generator; Dry type test transformer; DC high-voltage generator; Generator water supply DC high voltage generator; Variable frequency dielectric loss tester; Circuit resistance tester; DC resistance tester; Fully automatic ratio tester; Zinc oxide lightning arrester tester; Transformer comprehensive calibrator; Variable frequency earth network grounding impedance tester; Large scale grounding impedance tester for grounding network; High voltage switch dynamic characteristic tester; Transformer oil trace moisture tester, oleic acid value tester, oil chromatography analyzer, oil viscosity tester, oil ignition point tester, SF6 gas trace moisture testerSF6Gas density relay calibrator, precision dew point meter (micro water meter), cable fault tester, AC sampling transmitter calibration device, mining stray current tester, battery capacity constant current discharge tester, induction bearing heaterVacuum degree tester; Microcomputer relay protection tester; (Power frequency, frequency conversion) dielectric loss tester; Insulation oil dielectric strength tester; Multi functional vacuum oil filter; Transformer on load switch tester; High voltage wireless phase analyzer; Transformer electrical parameter tester; Triple frequency power generator; Multi frequency power generator; Transformer capacity tester, transformer ratio group tester, engine AC impedance tester, high-voltage circuit breaker mechanical characteristic tester; Simulated circuit breaker calibrator; Voltage current characteristic tester; Insulation resistance tester; Digital high-voltage megohmmeter; Grounding resistance tester; Three phase phase sequence table; Three phase energy meter on-site calibrator, three-phase phase volt ampere meter, lightning protection component tester, insulation board insulation products, frequency conversion method power frequency line parameter tester, three-phase capacitance and inductance tester, capacitance bridge tester, wireless high-voltage ratio tester, high-voltage voltage tester, high-voltage discharge rod, SF6 gas leakage monitoring and alarm system, high-voltage cable online monitoring system, microcomputer harmonic elimination device, capacitive equipment dielectric loss live testing systemLeakage protector tester, leakage current monitoring recorderBus ducts, sliding contact wires, electric heating tubes, and other industrial control systems and equipment.

Series resonant withstand voltage device, high current generator, current booster, test transformer, DC high voltage generator, ratio tester, DC resistance tester, relay protection tester, high voltage switch tester, volt ampere characteristic tester, vacuum degree tester, zinc oxide lightning arrester tester, loop resistance tester, transformer electrical parameter tester, transformer capacity tester, partial discharge tester, ultra-low frequency generator, capacitance inductance tester, dielectric loss tester, energy meter calibrator, chromatograph, nuclear phase analyzer

Shanghai Laiyang summarizes the equipment configuration list required for applying for Level 4 qualification for testing

Number Equipment Name Specification Model Quantity Usage

1One LYZT5500 insulation resistance tester is used to measure insulation resistance and absorption ratio of transformer windings

2Light high-voltage test transformer (including control console) YD-10KVA/100KV, 1 set of withstand voltage test

3DC resistance tester ZGY-IV for measuring the winding of one transformer

4HLY-III Circuit Resistance Tester for Measuring Contact Resistance of Conductive Circuits

5One LYJD grounding resistance tester is used for measuring grounding resistance
6. 1 set of DC high-voltage generator LYZGY2000-120KV/2mA, DC withstand voltage and DC leakage measurement

DC reference voltage and DC leakage current test for lightning arrester

7Test voltage measurement of one FRC series AC/DC voltage divider

8FRC series high-voltage measurement system with capacitive voltage divider, one test voltage measurement unit

9Voltage Transformer LYHG-35 1 Test Voltage Measurement

10One AC/DC voltmeter for testing voltage measurement

11One average voltage meter for testing voltage measurement

121 multimeter for testing voltage measurement

131 DC millivolt meter for voltage measurement

14BZC type transformer ratio tester for measuring transformer ratio

15YBL-III Zinc Oxide Surge Arrester Characteristics Tester for Resistance Current Measurement of One Surge Arrester

16One LYZKY2000 vacuum tester is used to measure the vacuum degree of a vacuum switch

17One LYFA-800 volt ampere characteristic tester is used for VA characteristic testing

18One 3KVA single-phase contact voltage regulator is used for voltage regulation

19Three phase contact voltage regulator 15KVA 1 set voltage regulator

20GKC-H high-voltage switch comprehensive tester for measuring the mechanical action characteristics of one high-voltage switch

21One JSY-5 automatic dielectric loss tester for measuring capacitance and dielectric loss

22Microcomputer relay protection tester LY660 1 relay protection debugging

231 precision current transformer 600/5A for current measurement

241 digital clamp ammeter LY5000 for current measurement

25One SWB-II digital DC microampere meter for current measurement

26Check the current and voltage circuit of one clamp type phase voltmeter LYXW6000

27High voltage nuclear phase equipment TAG-9000 1 set of nuclear phase equipment

281 low power factor wattmeter for power measurement

29One BDS transformer loss parameter measuring instrument is used to measure short-circuit impedance, load loss, no-load current, and no-load loss

301 set of LYDJ-III three meter inspection device for verifying current, voltage, and power meters

311 set of safety protection equipment including high-voltage phase shifter, trip bar, grounding rod, and voltage tester