ELR-30-M - Electrical protection relay ENTES - Free user manual and instructions

USER MANUAL ELR-30-M ENTES

TECHNICAL SPECIFICATIONS		ELR-30-M	ELR-30-A
SUPPLY
Supply Voltage		220-415VAC / 220VDC -20% to +20%
Power Consumption (Max.)		10VA
LEDIndication	Power On	ON (Green Led)
	EL / CT	ON (Red Led) Relay Trip / Blinking (CT OPEN)
	Leakage Current/ TST	BY bar graph 30%(Green), 45%(Green), 60%(Yellow), and 75%(Red), Blink Test/Reset Switch is pressed
Treshold IΔn (A)		0.03 – 0.1 – 0.3 – 0.5 – 1 – 3 – 5 – 10 – 20 – 30
Frequency		50-60Hz
RELAY O / P
Contact Rating		1 C/O + 1 NO; 5 A (Resistive) @ 240 VAC / 30 VDC
Contact Arrangement		1 C/O SPDT and 1 NO SPST
Utilization Category (AC-15)		3.0 A at 120 V & 1.5 A at 240 V
Utilization Category (DC-13)		0.22 A at 125 V & 0.10 A at 250 V
Mechanical Life Expectancy		1 × 107
Electrical Life Expectancy		1 × 105
Contact Material		Ag Alloy
RESET
Reset		Manual Reset	Auto Reset
No. Of Auto Resets		-	4
Clear Auto Reset		After 1 hour of healthy condition or supply interruption
Test / Reset		Local and Remote (Non Potential Free Contacts) (Up to 10 m)
AT Settings (s)		0.040 – 0.06 – 0.15 – 0.25 – 0.5 – 0.8 – 1 – 2.5 – 5 – 10
Reset Enable		Below 50% of set IΔn in presence of CBCT
Reset Time		<1 s
Type Class		‘A’ True RMS measurement upto IΔ 1A (as per IEC 60947-2 Annex M)
Setting Accuracy		‘AC’ True RMS measurement 30mA to 30A (as per IEC 60947-2 Annex M)
Repeat Accuracy		-20% (Including CBCT accuracy)
AMBIENT		±2%
Storage Temperature		-20°C to + 80°C
Operating Temperature		-15°C to + 60°C
Relative Humidity		5 to 95% Rh (without condensation)
Max. Operating Altitude		2000 m
Degree of Protection		IP-20 for Terminals, IP-40 for Enclosure
Operating Position		Any
Pollution Degree		II
OTHERS
Mounting		Din Rail
Dimensions in mm (W X H X D)		36 X 90 X 65
Weight Approx. (Un-packed)		150g
Certification		CE RoHS √
CBCT for Type A & AC Current
		Size (W X H X D) mm	Inner Diameter	Max. Current Per Phase
CBCT-70		37x133x109.3	70mm	160A
CBCT-92		37x155x132	92mm	200A
CBCT-120		37x176x153	120mm	250A
CBCT-210		37x282x250	210mm	400A

ELR & CBCT

EARTH LEAKAGE RELAY & CORE BALACNCE CURRENT TRANSFORMERS SERIES

Quick Start Manual

Trip Characteristics

Standard IEC 60947-2 annex M indicates the operating characteristic for a non-time-delay type in table B.1 in B.4.2.4.1 in standard IEC 60947-2 annex M. CBRs having IΔn = 30 mA shall be of the non-time-delay type. If the trip time is set at '0' sec, then for 5 IΔn & 10 IΔn, the tripping time will be < 40 ms for all current ranges.

Earth Leakage Current IΔn 2IΔn	5IΔn		1	10IΔn2
Maximum Break Time	0.3 0.15	0.04 0.04
1) For CBRs having I n < 30 mA, 0.25 A may be used as an alternative to 5I n
2) 0.5 A if 0.25 A is used

For CBR's having limiting non-actuating time of 0.06 s the operating characteristic is given in table B.2. in B.4.2.4.1 in standard IEC 60947-2 annex M.

Earth Leakage Current IΔn 2IΔn	5IΔn		1	10IΔn2
Maximum Break Time	0.5 0.2	0.15 0.15

Trip Characteristics for t ≥ 0.15s

EN 60947-2:2003

B.4.2.4.2.2 Operating characteristic for CBR's having a limiting non-actuating time higher than 0.06 s declared by ENTES. The maximum break time at IΔn, 2 IΔn, 5 IΔn, and 10 IΔn.

Earth Leakage Current Trip setting	Maximum Break Time
	1Δn 21Δn	51Δn	1	101Δn2
0.15 s 0.5 0.25 0.25 0.25
0.25 s 0.5 0.35 0.35 0.35
0.5 s 0.6 0.6 0.6 0.6
0.8 s 0.9 0.9 0.9 0.9
1 s 1.1 1.1 1.1 1.1
2.5 s 2.6 2.6 2.6 2.6
5 s 5.1 5.1 5.1 5.1
10 s 10.1 10.1 10.1 10.1

Features

1. Wide leakage current adjustment range

2. Adjustable earth leakage trip time

3. Instantaneous trip (for details refer trip characteristics)

4. "Test Feature" to check product functionality

5. "Manual Reset Feature" with reset buton

6. Remote resetting

7. 1C/O+1NO relay output

8. LED indications for all failures

9. Wide auxiliary supply voltage range

10. DIN rail mounting

11. Easy to install

12. Compact size

Recommendations

It is recommended to use CBCT's as mentioned in the table, to ensure the trip

current accuracy.

Caution

1. Always follow instructions stated in this quick start manual.

2.Before installation, ensure that specifications compatible with intended

application.

1. Installation must be done by a successful electrician.

2. Suitable dampers must be provided in case of over-vibration during installation.

3. Automation and control devices must be installed so

that they are protected against any risk of involuntary

actuation.

6.Disconnect the power before working on the device.

Terminal Details

Use Cu Wire of 60/75°C only

Notes

1. Since the innovation of the product is a regular process, we reserve the right to change all its features without prior notice.

2. The factory settings of the device are set to 30mA trip and instantaneous delay.

These settings can be adjusted as needed by the installation. A seal is supplied allowing the user to secure the clear window and hence prevent any unnecessary adjustment of the settings.

1. To comply with regulations, it is recommended that the device should be tested periodically to ensure correct operation.

2. In case of excess harmonics power transmission cables have more leakage because of low impedance offered by cable capacitance, IΔn setting need to keep at higher level.

Functional Description

Earth Leakage Protection

- Leakage current is detected through core balance current transformer. - When earth leakage current exceeds the set value of trip current, for the trip time which is adjustable with the trimpots on the front panel, trip occurs. - For details refer trip characteristics. - The Red LED "EL" indicates the presence of Earth Leakage.

CBCT Connections

All main primary conductors shall pass through the core area of CBCT. Use shielded wires for secondary terminal connections to B1 & B2. Connect the shield to the Y2 terminal of device, which is circuit ground of the device. The CT wires should be placed adequately away from high current carrying conductors or source of strong magnetic field to avoid noise pickup. The Earth Leakage Relay also verifies CT connection. If CT winding is open, red LED*EL" blinks.

Functional Diagram

Test / Reset

Press & hold "tst/rst switch" for 1sec. The product will change its state from "healthy" to "Trip (Test)" and vice versa "Reset".

Remote Test / Reset

For "remote testing & resetting", connect an external push button/switch between Y1 and Y2. For test sequence, press and hold the external push button switch for 1sec.

Auto/ Reset

For the ELR-30-A, product will automatically reset itself after 4 earth leakage fault in 15min. Reset count is cleared after 1 hour of healthy condition, supply interruption or pressing of the test /reset switch.

Overall Dimensions and Mounting Details

Front Face

1. Trimpot for "earth leakage current" setting

2. Trimpot for "trip time" setting 3. "Text/Reset Function" button

3. Test/Reset Function button

4. "Power ON" LED indication

5. "Earth leakage fault" or "CT open" LED indication

6. Bar graph for "earh leakage fault" indication

7. "Type A" indication

Notes

1. For CT connections use shielded wire and connect shield to Y2 terminal.
2. For single phase applications, only phase and neutral cables need to be passed through CBCT.
3. Do not pass ground conductor through CBCT connected to earth
   leakage relay.
4. All conductors to be protected must pass through CBCT.
5. Do not apply supply voltage at CT and switch terminal.
6. Connect the wires between CBCT and ELR with respect to B1 & B2. Wire
   gauge should be as mentioned under "Terminal Details"
7. This device satisfies the requirements for Type A devices which provides protection against leakage current in systems where alternating and direct current are used together.

ELR Operating condition	Contact Position
	1 NO (PSO/Fail Safe)	1 CO (PSO/Fail Safe)
No Auxiliary
Healthy / Rest State
Trip State

Centre the cables within the toroid

CBCT	SIZE	WEIGHT (in gr.)	A	B	C	D	E
CBCT-70	70	240	20	109	133	27	60
CBCT-92	92	250	20	132	155	27	73
CBCT-120	120	255	20	153	176	27	73
CBCT-210	210	280	20.5	250	282	28	128

Connection Diagram
FAIL SAFE MODE (CONTACTOR)
NON—FAIL SAFE MODE (SHUNT TRIP COIL)
FAIL SAFE MODE (CONTACTOR)

NON-FAIL SAFE MODE (CONTACTOR)
FAIL SAFE MODE (UV TRIP COIL)

SINGLE PHASE APPLICATION
NON-FAIL SAFE MODE (UV TRIP COIL)

Conformity to Standarts EMC

Harmonic Current Emission IEC 61000-3-2 Class A
Voltage Flicker and Fluctuations IEC 61000-3-3 Class A
ESD IEC 61000-4-2 Level II
Radiated Susceptibility IEC 61000-4-3 Level III	“Criteria B”
Electrical Fast Transients IEC 61000-4-4 Level IV
Surge	IEC 61000-4-5 Level IV for AC & Level I for DC Products
Conducted Susceptibility	IEC 61000-4-6 Level III for AC
Voltage Dips and Interruptions (AC)	IEC 61000-4-11Level I, II, III, IV, V, VI & VIII
Voltage Dips and Interruptions (DC)	50% for 50mSec @ Nominal Voltage 15V DC
Conducted Emission	CISPR 11Class A
Raiated Emission	CISPR 11Class A

Security

Test Voltage Between I/P & O/P	IEC 60947-5-1 / UL 508	2 kV
Test Voltage Between all Terminals & Enclosure	IEC 60947-5-1 / UL 508	2.5 kV
Over Voltage Category IEC 60947-1	IV
Impluse Voltage Between I/P & O/P	IEC 60947-5-1 Level 4kV
Single Fault	IEC 61010-1
Insulation Resistance	UL 508	>50kOhm
Leakage Current	UL 508	<3.5 mA

Environmental

Cold Heat	IEC 60068-2-1
Dry heat	IEC 60068-2-2
Vibration	IEC 60068-2-6 5g(10-50 Hz)
Repetitive Shock	IEC 60068-2-27	40 g, 6 ms
Non-repetitive Shock	IEC 60068-2-27	30 g, 15 ms

Note: As per IEC60947-2 (B.4.2.2) The minimum value of rated residual non operating current is 0.5 lΔn.

Ön Yüz

FAIL SAFE MOD (KONTAKTÖR)

NON-FAIL SAFE MOD (KONTAKTÖR)
FAIL SAFE MOD (DÜŞÜK GERİLİM AÇMA BOBİNİ)

TEK FAZLI UYGULAMA
NON-FAIL SAFE MOD (DÜŞÜK GERİLİM AÇMA BOBİNİ)

Standartlar