产品概述
用于发电机、变压器及输电线路的过负荷与短路保护线路中作为启动元件。无须直流辅助电源,彻底解决了来自直流电源的干扰及发热问题,极大地提高了工作的性,
DY-21D电压继电器工作原理
R2和R12分压器的分压位置与继电器的延时特性曲线有关,校验好后予以锁紧,其分压电压随互感器初级电流变化,当电流为继电器动作电流时,供给C2充电回路的电压小,达到使V8触发所需电压的充电时间,即继电器的动作时间长,当电流增大,分压电压增加,继电器的动作时间减短,形成与感应型过流继电器相似的反时限特性,如没有达到继电器动作所需的充电时间起动元件就因电流降低而返回,则继电器不动作。调整R5,可以改变继电器动作时间的整定值。
DY-21D电压继电器相关型号
BZS-11J~14J/62
HZB-22
BS-121A/C
JDZY-1220
JL-31B/D
JZ-21E/07J
JQX-13F
DZJ-20
JZY-200X
DT-13Q
JSW-13A
SS-22
BS-72C
JX-IB7
DZZ-13
ZSX-2
HJZZ-91/1
JZJ-221X
MS-12
SY-11
BZS-11J~14J/44
HZB-115
BS-181B/C
JDZY-1020
JL-31A/C
JZ-21/61
JPB-B
DZJ-11
JZY-062C
DT-13E
JSS48A-S
SS-18II
JX-IB3
DZZ-11
ZSJ-1
HJZ-Y924
JZJ-218
MGL-15
ST3PF(T1)
BZS-11J~14J/26
HYJY-30-02
JDZS-1202A
JL-313H
JZ-21/07
JLK-33
DZBT-115
JZY-004C
DT-13/L
JSS3B
SS-13
BS-72B/ⅡC
JX-IA6
DZY-222
ZNS-103A
HJZ-Y922
BHY-8-30
JZJ-214
MA-406A
ST3PC-A
BZS-11J~14J/08
HY-41A
BS-181B
JDZS-1004A
JL-313D
JZ-17
JLK-22
DZB-556
BS-144B
JZX-18
DT-13/90
JSS20-R
SRTT-24VDC-2H2D-B
JX-IA2
DZY-221
ZJY-420
HJZ-Y920
AH5B
JZJ-210
LY-55B
ST3PA-A
BZS-11J
HY-31B
JDZL-1440
JL-312J
JZ15D-44
JLK1-4
DZB-555
JZS-333/600
DT-13/120
JSS20-A
SRTT-220VDC-2H2D-C
BS-72B/Ⅱ
JXG-10
DZY-220
ZJY-080
HJZ-Y918
JZJ-206
LY-52A/C
SSJ8-32
BZS-11~14/80
HY-22
BS-181A/C
JDZL-1200
JL-312F
JZ15-44Z
JLK1-2
DZB-553
JZS-331/400B
DT-13
JSS20-21AMZ
SRTT-220VAC-2H2D-C
JXC-UB7
DZY-219
ZJX-3A
BCH-1
HJZ-Y916
JZJ-202
LY-36
SSJ-82A
BZS-11~14/62
HY-21
JDZL-1004
JL-312B
JZ15
BC-4
JLK-10B
DZB-551
JZS-321/300
DT-1/L
JSS1P1-09/M
SRTT-110VDC-2Z-A
BS-72B/Ⅰ
JXC-UB1
DZY-218
ZJS-400/2
HJZ-Y914
JZJ1-4
LY3
SSJ8-21D
BZS-11~14/44
HY-11B
BS-181A
JDZ2-S31
JL-311H
JZ14-44J
JL8-33
DZB-284X
BS-144A/C
JZS2-600C
DT-1/90
JSS1P1-05/M
SRTT-110VAC-2Z-B
JXC-UA3
DZY-217
ZJS-1
HJZ-Y912
JZJ-006
LXB-1E
SSJ8-12D
BZS-11~14/26
HSL-26
BS-121A
JDZ2-S11
JL-311D
JZ1-30
JL-8-31A
DZB-278X
JZS-249
DT-1/200
JSS-16
SRTST-24VDC-1H1D-1H1D-C
BS-72B
JXC-IC1
DZY-216
ZJL-420
HJZ-Y910
JZFY-24
LLG-5A
SSJ8-11B
BZS-11~14/08
HSL-22
BS-181
JDZ-2B
JL-31
JZ11-80ZS
JL-8-23A
DZB-262X
JZS-236
DT-1/160
JSS-14
SRTST-220VDC-1H1D-1H1D-A
JXC-IB4
DZY-215
ZJL-080
HJZ-Y908
JZC-3B/A
LL-63A
SSJ-79CD/T1
BZS-11
HSL-14
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