1. Overview

The product consists of JLS-10 combined transformer, ZW43-12/630 column vacuum circuit breaker and BXK control box. It shares the installation base with the transformer and high-voltage switch. The structure is simple and reliable, which reduces the on-site installation workload of the product and maintains the convenience of independent maintenance and expansion of the transformer and switch. Through the user-provided negative control terminal with prepaid function or the optional company's GPRS-type negative control terminal, the remote prepaid function is realized and the power consumption prepaid management is an ideal product for reforming the power consumption system, realizing the commercialization of electricity, and effectively controlling electricity.

2. Model and meaning

3. Structure introduction

This type of combined transformer adopts a fully enclosed structure of the user's external epoxy resin. It is made of three fully insulated single-phase voltage transformers, "Y"-shaped wiring A, B, and phase C, respectively, and is suitable for power metering in power lines of 10kV and below. To prevent power theft, the secondary terminal sealing plate can be directly poured into a conspicuous position on the surface of the casting body, and a lead seal can be added to effectively prevent power theft.

4. Technical parameters

1. Rated insulation level: 12/42/75kV 

2. Product Standard: GB/T 20840.4-2015 "Combination Transformer"

3. Dirt level: Level IV

4. Load power factor: COSΦ=0.8 (hysteresis)

5. Ambient temperature: -25℃ ~ +45℃

6. Altitude: £1000m

7. Installation location: outdoor

8. Rated secondary current: 5A, 1A

9. Instrument security coefficient: 10

10. Rated primary current: 5 ~ 600A (double conversion ratio)

11. Rated capacity: PT: 0.2 grade, 15VA; CT: 0.2S grade, 10VA;

12. Rated short-term thermal current (Ith): 100In/1s

13. Rated dynamic stable current (Idyn): 2.5Ith 

14. Rated voltage ratio: 10/Ö3/0.1/Ö3 (kV) or 10/0.1, 0.22k V power winding can be used for short-term loads such as circuit breaker closing and opening, energy storage, etc.

15. Switch parameter table

5. Appearance and installation dimensions

Three components

Two components

Notes:

If the user has special requirements, he or she can negotiate with our factory to confirm.