Description
The PT EVMECNTM13 voltage drop problem is a common problem in power generation, transmission, transformation, and distribution enterprises. It causes deviations in system voltage measurement, which not only affects the quality of power system operation, but also directly leads to energy metering errors. This metering error is directly attributed to the comprehensive error of energy metering.
In recent years, secondary wiring faults of voltage transformers have frequently occurred, directly affecting the safe operation of the secondary circuit and causing certain economic losses to manufacturers. Voltage transformers are important components of the primary and secondary circuits, providing power to measuring instruments, relay coils, etc., and accurately reflecting the normal operation of electrical equipment. Fault phenomenon: Most of the 35kV bus voltage transformers use model EVMECNTM13 , with a voltage ratio of (please refer to reference [6]). Every year during the rainy and rainy seasons in spring and autumn, or when the weather is humid or foggy, the central control room often sends out single-phase grounding or voltage reduction signals. After the duty personnel switch the voltage meter, if one or two phase voltage indicators decrease, and the other two or one phase voltage indicators remain unchanged, report to the elevator control center and request the second electrical and gas shift to come for processing
Main technical parameters:
Accuracy: ± 5% F? S
Alarm mode: digital display
Alarm sound: ≥ 70Db
Response time: ≤ 30S
Recovery time: ≤ 60S
Resolution: ± 1Ppm ± 1% LEL
Security level: Exd II Ct3
Measurement range: (0-100) PPm/(0-1000) PPm/(0-100)% LEL
Working environment: Temperature: -20 ℃~60 ℃
Humidity: ≤ 95% RH without frost formation
Charging voltage: 4.2-4.7V
Charging time: 8-12 hours
=====================================================================================================
FAQ：
1.How soon can we receive the goods？
We all have stock on hand and can support payment and delivery on the same day！
2.What payment methods are supported？
There are many ways(T/T….) for you to choose and You can choose anyone you want.
3.Is there any after-sales service？
Of course, if our goods are brand new, they are guaranteed for one year！
4.What express delivery is supported?
Support FedEx DHL Express International Shunfeng, etc.
5.How to keep in touch with you？
You can contact me 24 hours at any time through WeChat ，Skype ， WHATSAPP， LINE and my email！
Thank you again for your consultation and wish you a happy life
=====================================================================================================
MORE YOU NEED
ALSTOM N895313512X
ABB PFEA111-20 3BSE050090R20
ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
BENTLY 3500/42M 140734-02
BENTLY 3500/42M 176449-02
BENTLY 128229-01 （3500/42M小卡）
VIBRO-METER VM600 IOC16T
VIBRO-METER VM600 RLC16
VIBRO-METER VM600 IOC4T
VIBRO-METER VM600 CPUM
VIBRO-METER VM600 MPC4
VIBRO-METER VM600 CMC16
VIBRO-METER VM600 RPS6U
VIBRO-METER VM600-CSA 204-040-100-211
E-mail:dcsplcsales@gmail.com
Wechat:+86 13365909307
Phone:+86 13365909307