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The ELR-4MD DC Earth Leakage Relay is an advanced protection device designed to enhance the safety and reliability of electrical systems. With a hall effect current sensor (HCT), it continuously monitors the residual current in the busbars or branches of the DC system. When the residual current exceeds the preset threshold, the relay promptly outputs an alarm signal, ensuring early detection of potential faults.

Equipped with alarm function, the ELR-4MD ensures that alarm signals remain clearly indicated until received the reset signal, facilitating easy fault diagnosis and troubleshooting. ELR-4MD is critical for preventing equipment damage, minimizing downtime, and safeguarding personnel against electrical hazards.


Feature:
2XSPDT relay outputs;
Hall current sensor measurement;
Remote test/rest connections;
Standard 35mm din rail mounting;
RS485 Modbus communication;
Adjustable trip levels and time delay.

ZJJ DC insulation monitoring relay monitorsthe insulation of the DC bus, and it sendsalarm signal when the bus-to-groundinsulation drops to a certain value,also it ispanel mounted type,and the relay has a high-sensitivity grounding resistance monitoringand display circuit, it is great significance forthe safe operation of the DC system.
Monitoring of the DC circuit bus barinsulation resistance RF to LCD screen display resistance value.
Bridge balance method for resistancemeasurement.
Adjustable response value ranges of 0-100k�©.
Smaller short-circuit grounding current forsafe operation.

AFR arc flash protective relay is a costeffective solution that reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping in low-voltage (LV) and medium-voltage (MV) electrical networks. three remote light sensors can be connected to one relay.

It used to limits damages to equipment, improve safety, avoid and protect personnel injuries. It's also can be used as a stand-alone arc protection relay or applied in more complex switchgear layouts.

Three phase 100A Latching relay TP41-10:

-Three phase 100A switching capability ;
-Multi layer blades, lower temperature rise ;
-Conform to fault making capacity and short circuit current;
-carrying capacity of requirement of IEC62066-31( UC3) and IEC61810-1.
-It can be applied in three phase 100A electricity meter.

Single phase 80A Latching relay TP41-26:

-Single phase 80A switching capability ;
-Multi layer blades, low temperature rise ;
-Environment protection ( Comply with ROHS)
-It can be applied in single phase or three phase 60A Electricity meters.

Deyang YOYIK strong technical force, with CNC lathes, machining centers, 1.6M vertical lathe, 2.5M vertical lathe, 3.2M vertical lathe, 4M vertical lathe, CNC boring machine, gantry planing, gantry milling, 80mm Bending Machine and other sophisticated equipment, Strong welding capacity. Deyang YOYIK also long-term supply of power plants, steel accessories are as follows:

YOYIK provides multiple types of spare parts and equipments for power plant :
#DF-Relay WDZ-5271-DF
Displacement Sensor(LVDT) TDZ-1E-32oil station globe check valve J15C-1.6P
Oil filter
fluid transfer pump YW100-250
solenoid directional valve 4WE10Y-3X/CG24N9K4
axial piston variable pump PVH098R01AJ30A250000002
O ring HY.SO.0048.V
mechanical seal for pump 125-80-250
RTD temperature probe WZP2-231
pressure hose SMS-15/N1/4-915mm-C
screw pump diagram HSNH440-46NZ
Electric Valve
3 wire thermocouple TC03A2-KY-2B/S15
transfer pump vane F3-SV20
Temperature sensor, Pt100 WZPK2-338S
Filter element SDSGLQ-68T-40
Filter element SRA-14413-T
pressure hose S110-AC-FB-0150
furnace thermocouple WRNK2-231-R1/4\K
pipe panel 7500mm
globe throttle check valve KJC25-2.5P
temperature thermocouple TE-104
three screw pump ACF090N41RBP
sealing ring HB4-56J8-177
CV Disc
rotary vane vacuum pump F3V201S8S1C11
oil change pump 50AY35*12
thermocouple range TE-203
coupling RE.0444R1B 0.06 EG
heater thermocouple WRNK2-0901T �?5
Oil filter element outlet end of EH oil pump
flange coupling 125LY-23-8
pressure hose S100-AC-AC-0080
vacuum oil pump 125LY-35-4B
REGULATING VALVE DISC
Thermocouple Control WRNK2-346
Relay WDZ-5271
vane vacuum pump F3-V10-IS6S-1C-20
Globe valve J61Y-320
high pressure oil pump 50SDZLJ-50
chemical centrifugal pump DFB100-65-260-03
servo valve 72559A
oil station globe check valve J50C-1.6P
Network Switch EKI-2528ceramic thermocouple WRNK2-331
Electrical Epoxy Insulating paint 188
Heating rod ZJ-20-3
vacuum pump 264v P-2037
thermocouple replacement TC03A2-KY-2B/S19
centrifugal pump YCZ50-250
ELECTRICAL LINEAR VARIABLE DIFFERENTIAL
TRANSFORMER 1000TD
Accumulator Spare parts NXQ-A-40/31.5-L-Y
rtd thermocouple WRN2-239 0-600â??
screw pump manufacturer ACF080K41RBP
vane pump parts F3V10-1S6S-1C20
thermocouple protection tube WRNK2-221
piston pump hydraulic PVH131Q1C.RSF.10.C25
vacuum pumps P-1758
thermocouple wzpk 230 pt100 WRNK2-391
pressure switch 1RN-EE45-M4-C1Abalanced vane pump F3-20V5A-1C22R
thermistor TE-204
thermocouple k type WRNKB-446S/TG
thermocouple thermometer TE-404
furnace thermocouple TC03A2-KY-2B/S3
hydraulic piston pump 80AY50*6
Relay WDZ-5271

DFYL-2022-3-17-ZYR