Year1
- 型号：
- W9001
- 规格：
- 2U19英寸机架式机箱
- 颜色：
- 灰色
The
synchronous clock device
produced by Jinan Weishang Electronics Co., Ltd. is based on the "Technical Specifications for the Unified Clock System of East China Power Grid", "Technical Specifications for Time Synchronization System of Guangdong Power Grid Substations" and The time synchronization system designed in the "Shanghai Power Grid Time Synchronization System Technical Principles and Operation Management Regulations" consists of a standard time synchronization clock body and a time scale signal expansion device, and can be grouped together or individually. The time stamp signal expansion device includes pulse, time message and B code expansion modules, and the expansion device can be combined according to actual needs. The system uses the second synchronization signal and time information sent by
(Global Positioning System) or
B() code to provide various systems and automation devices in the power system (such as dispatch automation system, Microcomputer relay protection devices, fault recorders, event sequence recording devices, remote control devices, etc.) provide accurate time information and time synchronization signals.
The equipment adopts a fully modular structure design, which not only achieves full board compatibility, but also provides rich signal interface resources and an open special interface design platform, with excellent compatibility capabilities. It can provide multiple pulse signals (
,
, empty contact, differential,
active, optical), time messages (
,
, optical), < br/>Signal (
,
,
, light),
signal,
protocol network clock synchronization signal,
(
) protocol signal,
frequency time synchronization signal, which can meet the timing interface requirements of different devices. The device has been widely used in timing services in metallurgy, communications, electric power, finance, radio and television, security, transportation, water conservancy, national defense, petrochemicals, medical care, government agencies, education and other fields.
The characteristics of the synchronous clock device
:
, high synchronization accuracy with the external synchronous clock signal, and the synchronization accuracy is better than
. Using multi-sync self-adaptive synchronization technology, the synchronization accuracy is better than
.
, adopts redundant structure
supports dual
hot standby and double
B hot standby and is equipped with a high-precision timekeeping clock. The standard time synchronization clock body can access
and
out-of-code synchronization signals at the same time and serve as backup for each other. The time stamp signal expansion device can simultaneously access the
Road
out-of-code synchronization signal and serve as a backup for each other. Both the main clock and the signal expansion device can adopt redundant devices to ensure the reliability and stability of the time synchronization system.
Modular design, multiple output interfaces, flexible and convenient to use.
Can output
B code,
B() code, definable hour, minute, and second pulse null contact, and time message information that meet the
-standard, each
channel As a group, they can be combined in any way. The device can have up to
Adopting
and
standard chassis, the screens can be grouped separately, which provides convenience for the expansion of time synchronization signals in the future and facilitates maintenance and management.
, double
time message output technology
Time message output adopts double
parallel processing technology. The message sending time is the exact edge of seconds, and the error is not greater than< br/>+
.
, High-precision pulse output
The pulse output adopts a pulse large current generating circuit, so that the photoelectrically isolated empty contact can output a high-precision pulse signal, and the error is no greater than
.
, High-precision timekeeping clock
Using closed-loop control timekeeping technology to achieve high-precision timekeeping clock, the timekeeping accuracy can reach
/.
, using no overshoot
B code generation technology to produce high-precision
B codes with up to
accuracy.
, supports optical fiber or coaxial cable cascade input and output.
The signal reception has high reliability and is not restricted by the geographical conditions of the power station.
, all signal output ports are photoelectrically isolated, and the electromagnetic anti-interference reaches
level standards.
. There are alarm contact outputs for monitoring the operating status of the device, including alarms for power loss, external synchronization signal loss, and self-test abnormality alarms for the device.
Technical indicators of synchronized clock device
Physical parameters
. Chassis
Standard time synchronized clock body and time stamp signal expansion device are both standard
br/>rRack-mounted chassis can be firmly installed on the inner column of the distribution board, with a height of
. The chassis shell has a reliable grounding point.
Dimensions:
, or specified by the user.
Color
Color: computer gray
(
R) or user specified.
Weight
Weight:
. Antenna
The receiving antenna is matched with the mounting base.
Antenna size: diameter
3 (
) height
(
)
Base size: diameter
(
) height< br/>（
）
Base installation method: male pipe thread
, inner diameter
(
) height
(
),
/> Base installation location: Rooftop, visible to most of the sky
Weight (including mounting base):
Cable:
/Type, standard length
3, or user specified.
Environmental conditions
. Host working environment
Working temperature:
-℃
~ +℃
Storage temperature:
-℃
~ +℃
Humidity
Humidity:
~, no condensation
. Antenna
Working environment
Working temperature:
-℃< br/>~ +℃
Storage temperature:
-℃
~ +℃
Humidity:
, condensation
Electromagnetic compatibility Performance
The device can work normally in the electromagnetic field environment of the substation protection room and control room, and meets the requirements of the relevant regulations in
B/3-Electromagnetic compatibility of industrial process measurement and control devices
, Reach level III standard.
Power supply
Adopt AC and DC public power supply.
. AC power supply
Rated voltage: single phase
, allowable deviation
- ~
+
Frequency:
, allowable deviation
Waveform: sine, waveform distortion not greater than
.
. DC power supply
Rated voltage:
,
Allowable deviation:
-~
+
Ripple coefficient:
.
.Power consumption
is not greater than
.
Mean Time Between Failures
No maintenance required under normal use conditions.
Not less than
under normal conditions of use
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