Year1
- 规格：
- 2U19英寸
- 型号：
- W9005
- 颜色：
- 灰色
1. Overview of global satellite synchronous clock (power timing, time correction equipment, Beidou time synchronization system)
With the development of power system automation technology, The system's requirements for time unification are becoming more and more urgent, and the time synchronization accuracy is getting higher and higher. The series of global satellite synchronous clocks we have developed are clock synchronization equipment specifically designed to provide high-precision time benchmarks for the automation of power systems. This equipment uses the American navigation satellite global positioning system as the time base, and the time synchronization accuracy is... It is developed using receiver components produced by professional manufacturers in the United States. It can simultaneously track satellites in the field of view, automatically select the best constellation for positioning, timing, and output second pulses with precise time synchronization with UTC. It can output date and time through the serial port according to a certain format to supply the needs of the power system. Standard time scale used by various automation devices.
This equipment adopts microcontroller control and a technical design that combines software and hardware to fully utilize the potential of the receiving component. Therefore, the system has the characteristics of high reliability, multiple functions, high precision, good cost performance and easy operation, and can fully meet the time synchronization requirements of the power system. The promotion of its use will greatly promote and improve the development of automation technologies such as accident analysis, fault location and relay protection of power systems.
The device adopts modular design and supports multiple time signal outputs such as,B,,,,,,, and messages. According to the different signal output level characteristics or types, it is divided into eight types of signal output cards, R/, empty contact, R AC B code, and optical fiber, which can meet the various needs of current users.
2. Global satellite synchronized clock technical indicators
, receiving frequency. Can track ~ satellites at the same time
, antenna radio frequency sensitivity
Capture time seconds to minutes (antenna head should be placed in an open location , preferably fixed on the roof)
, output
Accuracy interface level: level
Polarity: positive pulse width about
Impedance front
, output
Precision interface level: level
Polarity: Positive pulse width is about
Impedance front
, output (optional)
Precision interface level: level
Polarity: Positive pulse width is about
Impedance front
, Time source: satellite, Beidou satellite, B code, (constant temperature crystal oscillator), rubidium atomic clock, R, optional.
. Average time between failures (B) 3 hours Average maintenance time (R): generally not more than 3 minutes, service life not less than 1 year, no maintenance required under normal use conditions.
, Power frequency measurement accuracy.
, Power supply
Input voltage range AC and DC~
Maximum output power
Input frequency range~
, Operating temperature range: ~+℃
3. The purpose of global satellite synchronized clock
For power grid automation devices such as fault recorders, microcomputer relay protection and safety automatic devices, telecontrol and microcomputer monitoring systems, event recorders, etc. The device provides a time signal.
. Standard clock used for frequency monitoring, that is, the difference between the power frequency clock and the standard time is used to compare the system frequency error accumulation in scheduling
Synchronous clock used for phase measurement, use this product to synchronously sample Pulse, the synchronization error is very small, which can ensure the accuracy of phase measurement.
, used for testing relay protection devices and inspecting line longitudinal protection (high-frequency phase difference protection devices).
, used for fault location, especially creating conditions for the development of devices based on the principle of double-ended traveling wave distance measurement.
Jinan Weishang Electronics Co., Ltd. will adhere to the business philosophy of first-class products and first-class services, with the purpose of being based on technology and commitment to innovation, and the goal of becoming a first-class time synchronization product provider and service provider, and vigorously develop and produce timing products. , dedicated to providing comprehensive solutions for professional timing products for my country's national defense and military, power telecommunications, aerospace and other industries and fields.
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