weikemu VC-7850电力系统同步时钟用户手册

0.001 周，工频钟差测量精度≤20 ms；
9 双电源冗余热备份；
9 可选配增加铷钟。
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1.3 装置构成
VC-7850 电力系统同步时钟用户手册
VC-7850 电力系统同步时钟采用 19 英寸 3U 标准插卡式机箱，为架 装式设备，高度 3U 宽度 19”标准机箱，具体外形尺寸见图 1.1 所示。
4.1 电源板·································································································22 4.2 卫星输入板·························································································23 4.3 B 码入Ⅰ板 ·························································································24 4.4 B 码入Ⅱ板 ·························································································26 4.5 RS485 输出板 ·····················································································28 4.6 报文输出板·························································································29 4.7 空接点输出板·····················································································31 4.8 NTP 板 ································································································34 4.9 周波测量板·························································································35 4.10 光纤输出板·······················································································36 4.11 交流 B 码输出板 ··············································································37
版本号
日期
1.0 版 2008 年 3 月
1.1 版 2009 年 5 月
1.2 版 2010 年 3 月
描述 初稿发布 添加网络板、周波测量板 添加交流 B 码板
文中用到的特殊字体及图标说明见下表：
项目
定义
黑体 黑体：用于标题以及需要用户注意的内容。
注意：表明用户在操作时需要特别注意的事项。
警告：表明必须严格执行的事项。
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具体功能特点如下：
VC-7850 电力系统同步时钟用户手册
9 配置灵活，支持热插拔功能；
9 具有先进时钟控制算法；
9 支持 WEB 管理方式；
9 配置主时钟，扩展时钟；
9 支持多种输入板卡；
9 支持 72 路授时接口；
9 支持 NTP 输出，提供网络对时，提供 4 个网口；
附录一 串口规约 ························································································· 45
默认格式 ···································································································45 周波测量串口数据格式 ···········································································46 华中电网数据格式 ···················································································48
售后服务热线：(0371) 67679119 67679999 技术支持电话：(0371) 67679889
传真：(0371) 67679976
威科姆科技
VC-7850 电力系统同步时钟用户手册
目录
一、 产品概述······························································································· 2
1.1 简介······································································································ 2 1.2 主要功能特点······················································································ 2 1.3 装置构成······························································································ 4
VC-7810 电力系统卫星同步时钟用户手册
VC-7850 电力系统同步时钟
用户手册
郑州威科姆科技股份有限公司
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关于本用户手册
VC-7850 电力系统同步时钟用户手册
本手册包含“VC-7850 电力系统同步时钟”的安装调试、配置和操作。 请按照本手册进行安装和操作。
本手册版本说明请参阅下表：
1.2 主要功能特点
VC-7850 电力系统同步时钟具有主时钟和扩展时钟的双重性。装置 时钟源采用灵活插卡式。插入北斗、GPS 时钟板，作为主时钟系统应用； 插入 B 码输入板或网络板可作为扩展时钟应用。
该产品可同时接收北斗和 GPS 卫星信号，实现北斗卫星和 GPS 双系 统冗余备份，提供长期时标信息，进行同步并对外授时；也可以使用外 部输入源（包括 IRIG-B（DC）和网络授时）为时间基准进行同步并对 外授时；在卫星源和外部钟源都不可用时，由系统内部时钟控制算法在 一定时间段内稳定地提供高精度时间信息。钟控算法先进，自动选择跟 踪源，跟踪源无损切换。北斗和 GPS 卫星源之间或卫星源和外部输入源 之间可以自动切换；输入两路 B 码信息实现双系统冗余备份提供时标信 息。两路 B 码源可自动切换，并在切换时实现无损切换。
五、安装与调试 ··························································································· 39
5.1 设备安装 ····························································································39 5.2 设备调试注意事项·············································································43
电力系统同步时钟可灵活配置,提供多种授时应用。授时信号包括： 脉冲、串行授时报文、IRIG-B（直流、交流 B 码）、DCF77、网络授时等； 授时接口类型包括：光纤、RS232 电平、RS485 电平、空接点和网口等。
本系统主要应用于以调度自动化系统为中心的主站系统，以电站监 控（包括发电厂、变电站、开关站等）为主的子站系统，为其提供高可 靠性和高精度的时间信息。
可以支持 72 路授时信号输出，选配不同输出板能够配置不同接口 类型输出，在输出板上通过内部跳线可以设置输出为 1PPS、1PPM、1PPH、 自编程脉冲、直流 B 码或 DCF77 码等信号。
输入板包括： 卫星输入板：可配置北斗或 GPS 接收板； B 码入Ⅰ板：RS485 电平的直流 B 码输入，含继电器空接点告警
附录二 WEB 管理操作说明····································································· 53
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一、 产品概述
VC-7850 电力系统同步时钟用户手册
1.1 简介
电力系统同步时钟主要针对电力系统应用特点，采用灵活插卡式， 可作主时钟系统应用，也可作为扩展时钟使用。
三、前面板 ····································································································11
四、后面板 ··································································································· 21
9 输出信号包括：1PPS、1PPM、1PPH、自编程脉冲和 IRIG-B DC
及 DCF77 码等；
9 输出类型包括：光纤，RS485，空接点等；
9 可支持 RS232 和 RS485 电平格式报文输出；波特率可配；报文
格式可以根据用户定制；
9 具有周波测量、工频时钟和工频钟差输出功能，周波测量精度为
二、 技术指标······························································································· 6
2.1 环境条件······························································································ 6 2.2 系统性能指标······················································································ 6 2.3 主时钟技术指标 ·················································································· 7 2.4 扩展时技术指标 ·················································································10
图 1.1 装置外形图
VC-7850 电力系统同步时钟由前面板、钟控板、铷钟板（选配）、电 源板、输入板、输出板和机箱构成（各板具体功能及使用将在第三章、 第四章有详细说明）。采用插卡式机箱设计，输入板和输出板可以灵活配 置，可以由卫星输入板和输出板构成主时钟，可以有 B 码输入板、光纤 B 码输入板或网络输入板和输出板构成扩展时钟。
输出； B 码入Ⅱ板：光纤形式的直流 B Leabharlann Baidu输入，含继电器空接点告警输
出；
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输出板包括：
VC-7850 电力系统同步时钟用户手册
光纤输出板：可配置为直流 B 码、脉冲输出或 DCF77； RS485 输出板：可配置为直流 B 码、脉冲输出或 DCF77； 报文输出板：RS232 和 RS485 电平可配置； 空接点输出板：可配置为脉冲、直流 B 码或 DCF77； NTP 板：支持 NTP/SNTP，WEB 页管理； 交流 B 码输出板：输出幅度连续可调的交流 B 码； 周波测量板：周波测量功能；