Current amplifier which thermally stabilizes electrical devices is a kind of current source for testing use. For example, it can be used as low-voltage super-current source in....

Introduction: It is a kind of contact ratio autotransformer which can adjust load voltage within rated voltage. This series of products are well designed because they adopt UK....

Technical parameter:
HRYDJ W series are made of high-quality materials, which contribute to its low losses, small volume, little weight, compact construction and convenience.....

Technological characteristics:
It is a new generation invented on the basis of HRZJ1 and HRZJ2 type.
1. It is possible to find out one-point or multi-point abort situation....

This kind of vacuum oil-filter has combined original design, compact structure, light and flexible features, low power consumption, high effect, and convenient operation together.....

With easy-operation and stable performance features, it has every normal tests for relays, and both alternating and direct current power adopt the newly power technology.
The key....

1. Column compartment temperature room temperature + 15 ^ 350  controlling temperature range: Â ± 0.1^ 0.2
2. Testing room temperature: room temperature+ 30 ^ 350 , ....

They are divided into two types: automatic and full automatic, in keeping with
Insulation oil automatic dielectric strength testing method  . They are portable and of the latest....

It is used for testing DC resistances of transformers, motors, instrument transformers and other equipmentsâ € ™ ( the speed of the test is fast, the results can be showed and....

Functions, features:
It is used to test internal defects caused by the poor contact between the non-linear resistors of zero clearance metal arrester which is used by 10KV or....

It tests the alternating leakage current or sustained current under the operating tension of various classes of voltage zinc oxide lightning arrester, and the frequency reference....

The tester can measure the no-load of the transformer, and the active current ( voltage) value, power factors of the short-circuit experiment at the same time with computer....

Digital impulse voltage ( current) waveform recording system for measuring and analyzing
 GIS oscillation operation wave and steep wave experimental instrument
 Reform of the....

Used for measuring any once â € “ impulse full waves whose first signal formâ € ™ s length overpass 500ns , also measuring and storing the numerical value of the impulse peak-voltage ....

Main features:
( 1) Operate â € “ easily: liquid crystal screen, the whole Chinese characters guide menu, four keys are involved
( 2) Reliable: wired method of measuring , ....

Main functions:
( 1) measuring the single-phase, biphase and three -lines, three-phase and fourâ € “ lines electric energy and power
( 2) checking three-phase or single-phase....

Main features:
( 1) It combines the principle of the potential difference and advanced processing system; combines stability and intelligence; with high electric- pollution....

The gear is used to test the contact resistance and loop resistance of the switch controlling equipments, adopting the national standard GB763 direct current DC 100A( 120A/ 150A) ....

The tester is used to measure the distance between the fault point and the measuring point when the permanent earth or turnoff happened in the overhead transmission line. It is....

This is used for locating various faults of the cables for the city cable, high frequency communication cable, buried cable and medal overhead cable line. The faults include open....