Jlszw-10W 10-400/500-600/800-1000A 10/15va Outdoor Dry Combined Instrument Transformer High Voltage Metering Box

Model Description

Product technical parameters and structure dimensions

The main technical parameters:
1. Rated voltage: 35KV 10KV 6KV
2. Accuracy level: 0.5 and 0.2, 0.5S and 0.2S
3. Rated transformation ratio: voltage ratio: 35000/100V, 10000/100V, 6000/100V
Current ratio: The primary current is: 2.5, 5, 7.5, 10, 15, 20, 30, 40, 50, 75, 100. . . . . . A and other specifications.
4. Dual current ratio specifications: The secondary current of dual ratio current is marked as 1S1, 1S2, 1S3, 21S1, 21S2, 21S3, of which S1 and S2 are small current ratios, S1 and S3 are large current ratios , in which the current transformation ratio connection method should be selected according to the corresponding maximum capacity of the transformer
5. Rated capacity:
6KV 0.2, 0.2S class voltage part: 2×20VA current part: 2×10VA 0.5 class voltage part: 2×25VA current part: 2×10VA 10KV 0.2, 0.2S, 0.5 class voltage part: 2×25VA current part: 2 ×10VA 35KV 0.2, 0.2S, 0.5 class voltage part: 2×50VA current part: 2×10VA

Product features and scope of use

This product consists of a combination transformer and an instrument box.
The combined transformer is composed of two single-phase voltage transformers (PT) and two current transformers (CT). Both PT and CT are electromagnetic, and the two PT windings are connected by V/V to form a three-phase measuring device. , the primary windings of the two CTs are connected in series with the grid A and C, respectively. The side of the box is welded with grounding screws.
The instrument box is connected with the secondary winding outlet of the combined transformer. The instrument box is equipped with a three-phase active watt-hour meter and a reactive watt-hour meter, and the numbers can be clearly read from the inside of the box.
This product is especially suitable for users of medium and small transformers. It can measure active energy and reactive energy completely and accurately. The product design is ingenious and reasonable, the structure is compact, beautiful, and the parts are tightly blocked. device, the instrument box can also be installed separately
Conditions of Use:
This product is used in the range of ambient temperature -30°C~+40°C and below 2500 meters above sea level. The air temperature should not be greater than 85% of the installation site, there should be no serious vibration and turbulence, there should be no strong corrosive gas, and it should not be installed in flammable and explosive places.

Product use and maintenance

Inspection and maintenance before use:
1. Measure the insulation resistance of the winding and compare it with the factory value.
2. Check whether the wiring of the secondary circuit is correct, and whether the position of the junction box screws and the pressure plate is normal.
3. Check whether the grounding of the box shell is good, and whether the lightning protection measures are compromised.
4. When connecting the primary line, it should be consistent with the phase sequence of the power grid, and the incoming and outgoing wiring of P1 and P2 must be correct.
5. The secondary voltage transformer is not allowed to be short-circuited, and the secondary current transformer is not allowed to open. The voltage transformer, the secondary current transformer and the casing must be reliably grounded to ensure the safety of the instrument and personal safety.

Product details

Products real shot

A corner of the production workshop

Product packaging

Product application case

 
/* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1