- Phone
-
Address
B203, Building 10, Honghui New Huiyuan, Lane 4718, Gonghe New Road, Jing'an District, Shanghai
Shanghai Chending Automation Equipment Co., Ltd
B203, Building 10, Honghui New Huiyuan, Lane 4718, Gonghe New Road, Jing'an District, Shanghai
Original supplier of SEL relay cable C80430XXXXX in the United StatesShanghai Chending specializes in selling SEL products from the United States. If you have any needs, please feel free to inquire. 735 # 8HQ8 (0735BX20544EXXXXXX15101XX) If you need it, please feel free to inquire
SEL devices include SEL2020, SEL2030, SEL551, SEL351A, SEL587, SEL387, SEL311L, SEL300G, SEL311C, early SEL501, SEL287, SEL267, SEL251, etc. Currently, the most widely used device is SEL2030, SEL551, SEL351A, SEL587, SEL387. Mastering the use of these five devices and learning to master other devices is easy, and most SEL stations can be debugged. Below is a brief introduction to these five devices:
SEL2030 is the communication management machine of SEL, responsible for the communication work of SEL devices.735 # 8HQ8 (0735BX20544EXXXXXX15101XX) is welcome if neededinquiry
SEL551 is mainly used for line protection, which can achieve current protection, other non electric quantity protection, and reclosing function.
SEL351A is mainly used for transformer backup and capacitor protection, which can achieve current protection, voltage protection, non electric quantity protection, frequency protection, reclosing function, etc.
SEL587 and SEL387 are mainly used for transformer differential protection, backup overcurrent protection, non electric quantity protection, etc.
In the SEL series microcomputer protection device, the relay words of the constant value logic have certain rules, and mastering these rules is of great help. The description is as follows:
1. The rules in terms of numbers:735 # 8HQ8 (0735BX20544EXXXXXX15101XX) is welcome if neededinquiry
50: represents a timed current protection component,
51: Represents inverse time current protection component,
87: represents differential protection element,
79: represents the reclosing element,
27: Represents low-voltage protection components,
59: Represents overvoltage protection component,
81: represents low cycle load shedding components,
25: represents a periodic element,
2. Rules regarding letters:
P: Representative phase current element
Q: Representing negative sequence current elements
G: Representing unbalanced current components (internal calculation)
N: Representing independently introduced zero sequence current components
SV: Represents the timer inside the device
T: The component representing Qidong is delayed to
PU: represents the delay start setting of the timer
DO: represents the timer's delay return fixed value
*SEL microcomputer protection device in the United States735 # 8HQ8 (0735BX20544EXXXXXX15101XX) is welcome if neededinquiry
SEL Corporation in the United States is the world's leading professional company in the production of microcomputer protection. The working environment temperature of the products can reach -40 ℃ to+85 ℃, and the device has temperature indication, out of range alarm, and lockout protection. Seismic experiment with 10 gravitational accelerations. Especially suitable for installation in switchgear. All SEL protections have a black box function. You can view and print the system status information at the time of the fault and several cycles before the fault. SEL protection has strong logical programming capabilities and can implement user-defined solutions. The protection has a self checking function. Once the device fails, it will lock the protection and issue a warning. The average working time is 173 years, with 10 years of free maintenance provided. The product has passed ISO9001 quality system certification. Through the dynamic simulation test conducted by the National Electric Power Equipment Testing Center. Hundreds of substations/power plants across the country have adopted SEL protection, which has received high praise from users.735 # 8HQ8 (0735BX20544EXXXXXX15101XX) is welcome if neededinquiry
Features:
·Relay operating temperature -40 ℃ to+85 ℃
·Relay warranty period of 10 years
·SELogic Logic Control Equations
·Mirrored Bits Image Communication Technology
·One board structure mode
·Only equivalent to the price of high-end domestic microcomputersOriginal supplier of SEL relay cable C80430XXXXX in the United StatesShanghai Chending specializes in selling SEL products from the United States. If you have any needs, please feel free to inquire. 735 # 8HQ8 (0735BX20544EXXXXXX15101XX) is welcome if neededinquiryCome and inquire about the price
