THIẾT BỊ GIÁM SÁT CÁCH LY IMD - HIG24VDC/T

Mã: IMD - HIG24VDC/T

Giá: Liên hệ

Insulation monitoring devices HIG*VDC(-L) are designed for the monitoring of the insulation status of DC IT systems with nominal voltage 12, 24, 48, 72 or 110 V DC.
The device continuously monitors the insulation status of both branches of the isolated IT system against a reference point. For stationary equipment this is usually the PE conductor, for mobile equipment it is the vehicle frame.
If the insulation condition in the positive branch R+ or negative branch R- is faulty, this condition is signalled by setting relay KA1/KA2. The fault condition is also indicated by LEDs on the front panel.
These devices are equipped with a display for showing the currently measured values. The display, together with the buttons is also used to set the device.
HIG24VDC(-L)/T, HIG48VDC(-L)/T, HIG72VDC(-L)/T, HIG110VDC(-L)/T are designed for railway use (EN 50155) to monitor the insulation condition of DC IT systems.

THIẾT BỊ GIÁM SÁT CÁCH LY HAKEL IMD - HIG24VDC/T

THÔNG SỐ KỸ THUẬT

Monitored IT power supply system type according to IEC 61557-8		DC
Measuring range of insulation resistance	RF	5 ÷ 990 kΩ
Adjustable range of critical insulation resistance	Ran	5 ÷ 500 kΩ
Number of insulation resistance fault levels (Ran)		1
Rated voltage of monitored IT system (DC)	Un	24 V
Nominal supply voltage DC	Us	12 ÷ 36 V
IMD power supply		From measured IT system
Power consumption	P	2 VA
Measuring input’s internal impedance	Zi	> 120 kΩ
Internal DC resistance	Ri	> 120 kΩ
Measuring accuracy		± 10 %
Equipped with display		Yes (OLED technology)
Supported module of remote monitoring panels (MDS)		MDS-D, MDS-DELTA
Communication interface for user		RS485 bus
Communication protocol		ISOLGUARD
External control inputs		Test start, Deblocking function
Housing material		Polyamid PA6, UL94 V-0
Electrical strength against internal circuits		3 750 V
Degree of protection of front panel		IP40
Degree of protection except the front panel		IP20
Operating temperature	ϑ	- 25 ÷ 70 °C
Storage temperature		- 40 ÷ 70 °C
Protection class according to IEC 61140		II
Recommended cross-section of connecting wires	S	1 mm2
Installation		On DIN rail 35 mm
Modular width		2
Width		36 mm
Height		90 mm
Depth		63.5 mm
Recommended fuse protection		6 A/gG
Use for traction		Yes
Operating position		Any
Operation type		Permanent

TIÊU CHUẨN ĐÁP ỨNG

Application standards
Low-voltage electrical installations – Protection against electric shock	HD 60364-4-41:2017
Designed according to standards
Insulation monitoring devices for IT systems	IEC 61557-8:2014
Equipment for testing, measuring or monitoring of protective measures	IEC 61557-1:2007
Insulation coordination for equipment within low-voltage systems	IEC 60664-1:2007
Railway applications – Rolling stock – Electronic equipment	EN 50155:2017
Railway applications – Rolling stock equipment – Shock and vibration tests	IEC 61373:2010
Railway applications – Fire protection on railway vehicles	EN 45545-2:2013
Railway applications – Electromagnetic compatibility	EN 50121-3-2:2016