TORKEL

840/860
Battery Load Units

A Megger Group Company

 TORKEL 840/860
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Battery load units

Batteries in power plants and transformer substations must provide the equipment they serve with standby power in
the event of a power failure. Unfortunately, however, the capacity of such batteries can drop significantly for a
number of reasons before their calculated life expectancy is reached. This is why it is so important to check batteries
at regular intervals, and the only reliable way of measuring battery capacity is to conduct a discharge test.
TORKEL™ 840 - UTILITY is used for battery systems ranging from 12 to 250 V – often encountered in switchgear and
similar equipment. Discharging can take place at up to 110 A, and if higher current is needed, two or more
TORKEL 840 units or extra load units, TXL, can be linked together. Tests can be conducted at constant current,
constant power, constant resistance or in accordance with a pre-selected load profile.
TORKEL 860 - MULTI is designed primarily for people who travel from place to place to maintain battery systems
having different voltages. It features excellent discharging capacity plus a broad voltage range and outstanding
portability – a unique combination.
TORKEL 860 is used for systems ranging from 12 to 480 V, and discharging can proceed at up to 110 A. If higher
current is desired, two or more TORKEL 860 units or extra load units, TXL, can be linked together. Discharging can
take place at constant current, constant power, constant resistance or in accordance with a pre-selected load profile.

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Application example Application examples with TORKEL/TXL

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IMPORTANT! systems
Read the User’s manual before using the instrument. TORKEL and TXL can be combined into systems to match up for
Testing can be carried out without disconnecting the battery from the different battery capacities. Here are two examples, you can find
equipment it serves. Via a DC clamp-on ammeter, TORKEL measures more in the section Battery Testing Accessories.
total battery current while regulating it at a constant level.
1. Connect TORKEL to battery.
2. Set the current and voltage alarm level
3. Start discharging. TORKEL keeps the current constant at the
preset level.
4. When the voltage drops to a level slightly above the final voltage,
TORKEL issues an alarm.
5. If the voltage drops low enough so that there is risk of deepdis-
charging the battery, TORKEL shuts down the test. The total
voltage curve and the readings taken at the end of the test are
stored in TORKEL. Later, using the TORKEL Win program which
runs on a PC under Windows®, you can transfer these readings to
your computer for storage, printout or export. If your PC is
connected to TORKEL during the test, TORKEL Win builds up a
voltage curve on the screen in real time and displays the current,
voltage and capacity readings. You can also control the test using
TORKEL Win.

TORKEL and the extra load TXL

Example of multiple TORKEL and TXL arrangement

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Specifications TORKEL 840/860 Load section

Max. battery voltage 288 V DC (TORKEL 840)
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change 480 V DC (TORKEL 860)
without notice. Max. current 110 A
Environment Max. power 15 kW
Application field The instrument is intended for use in Load patterns Constant current, constant power,
high-voltage substations and industrial constant resistance, current or power
environments. profile
Temperature Current setting 0-110.0 A (2999.9 A) 1)
Operating 0°C to +40°C (32°F to +104°F) Power setting 0-15.00 kW (299.99 kW) 1)
Storage & trans- -40°C to +70°C (-40°F to +158°F) Resistance setting 0.1-2999.8 Ω
port Battery voltage range, 4 ranges, selected automatically at
Humidity 5% – 95% RH, non-condensing TORKEL 840 start of test
CE-marking Battery voltage range, 5 ranges, selected automatically at
TORKEL 860 start of test
Safety standards IEC 61010-1:2001 Incl. national dev.
for US and CA Stabilization (For ±(0.5% of reading +0.5 A)
EN 61010-1:2001 internal current meas-
urement)
EMC standards EN 61326: 1997+A1:1998+A2:2001
Battery Highest permis- Resistor ele-
General voltage sible current ment (Nominal
Mains voltage 100 – 240 V AC, 50 / 60 Hz values)
Power consumption 150 W Range 1 10 – 27.6 V 110 A 0.165 Ω
(max) Range 2 10 – 55.2 V 110 A 0.275 Ω
Protection Thermal cut-outs, automatic overload Range 3 10 – 144 V 110 A 0.55 Ω
protection
Range 4 10 – 288 V 55 A 3.3 Ω
Dimensions
Range 10 – 480 V 55 A (max power 3.3 Ω
Instrument 210 x 353 x 700 mm 5 2) 15 kW)
(8.3” x 13.9” x 27.6”) 1) Maximum value for a system with more than one load unit
Transport case 265 x 460 x 750 mm 2) TORKEL 860
(10.4” x 18.1” x 29.5”)
Inputs, maximal values
Weight 21.5 kg (47.4 lbs)
External 1 V DC, 300 V DC to ground. Current
38 kg (83.8 lbs) with accessories and
current shunt should be connected to the
transport case.
measurement negative side of the battery
Display LCD
Start / Stop Closing / opening contact
Available languages English, French, German, Spanish, Closing and then opening the contact
Swedish will start / stop Torkel. It is not possible
Measurement section to keep the contacts in closed position.
Current measurement Delay until start 200 – 300 ms
Display range 0.0 – 2999 A Stop delay 100 – 200 ms
Basic inaccuracy ±(0.5% of reading +0.2 A) Battery 480 V DC, 500 V DC to ground
Resolution 0.1 A Voltage sense 480 V DC, 500 V DC to ground
Serial < 15 V
Internal current measurement
Alarm 250 V DC 0.28 A
Range 0 – 270 A
28 V DC 8 A
Input for clamp-on ammeter 250 V AC 8 A
Range 0–1V Outputs, maximal values
mV/A-ratio Software settable, 0.3 to 19.9 mV/A Start / Stop 5 V, 6 mA
Input impedance >1 MΩ TXL Relay contact
Voltage measurement Serial < 15 V
Display range 0.0 – 60 V Alarm Relay contact
Basic inaccuracy ±(0.5% of reading +0.1 V)
Resolution 0.1 V
Display range 0.0 – 500 V
Basic inaccuracy ±(0.5% of reading +1 V)
Resolution 0.1 V
Time measurement
Basic inaccuracy ±0.1% of reading ±1 digit

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Discharging capacity, examples
12 V battery (6 cells) 3)
Final voltage Constant cur- Constant power
1.80 V / cell (10.8 V) 0 – 50.0 A 0 – 0.54 kW
1.75 V / cell (10.5 V) 0 – 49.0 A 0 – 0.51 kW
1.67 V / cell (10.0 V) 0 – 46.0 A 0 – 0.46 kW
24 V battery (12 cells) 3)
1.80 V / cell (21.6 V) 0 – 110 A 0 – 2.37 kW
1.75 V / cell (21.0 V) 0 – 110 A 0 – 2.31 kW
1.60 V / cell (19.2 V) 0 – 100 A 0 – 1.92 kW
48 V battery (24 cells) 3)
1.80 V / cell (43.2 V) 0 – 110 A 0 – 4.75 kW
1.75 V / cell (42.0 V) 0 – 110 A 0 – 4.62 kW
1.60 V / cell (38.4 V) 0 – 110 A 0 – 4.22 kW
110 V battery (54 cells) 3)
1.80 V / cell (97.2 V) 0 – 110 A 0 – 10.7 kW
1.75 V / cell (94.5 V) 0 – 110 A 0 – 10.4 kW
1.60 V / cell (86.4 V) 0 – 110 A 0 – 9.5 kW
120 V battery (60 cells) 3)
1.80 V / cell (108 V) 0 – 110 A 0 – 11.9 kW
1.75 V / cell (105 V) 0 – 110 A 0 – 11.5 kW
1.60 V / cell (96 V) 0 – 110 A 0 – 10.5 kW
220 V battery (108 cells) 3)
1.80 V / cell (194 V) 0 – 55 A 0 – 10.7 kW
1.75 V / cell (189 V) 0 – 55 A 0 – 10.4 kW
1.60 V / cell (173 V) 0 – 51.0 A 0 – 8.82 kW
240 V battery (120 cells) 3)
1.80 V / cell (216 V) 0 – 55 A 0 – 11.9 kW
1.75 V / cell (210 V) 0 – 55 A 0 – 11.5 kW
1.60 V / cell (192 V) 0 – 55 A 0 – 10.5 kW
UPS battery (180 cells) 3) (TORKEL 860)
1.70 V / cell (306 V) 0 – 38 A 0 – 15 kW
1.60 V / cell (288 V) 0 – 38 A 0 – 15 kW
UPS battery (204 cells) 3) (TORKEL 860)
1.80 V / cell (367 V) 0 – 34 A 0 – 15 kW
1.60 V / cell (326 V) 0 – 34 A 0 – 15 kW
3) 2.15 V per cell when test starts

Ordering information Art.No.

TORKEL 840
Complete with:
Cable set GA-00550
Transport case GD-00054 BS-49094
TORKEL 860
Complete with:
Cable set GA-00550
Transport case GD-00054 BS-49096
Optional accessories
Cable set GA-00550 See section “Battery Testing Accessories”

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NOTICE OF COPYRIGHT & PROPRIETARY RIGHTS
© 2008, Programma Electric AB. All rights reserved.
The contents of this document are the property of Programma Electric AB. No part of this work may be reproduced or transmitted in any form or by any
means, except as permitted in written license agreement with Programma Electric AB.
Programma Electric AB has made every reasonable attempt to ensure the completeness and accuracy of this document. However, the information
contained in this document is subject to change without notice, and does not represent a commitment on the part of Programma Electric AB.

TRADEMARK NOTICES
Megger® and Programma® are trademarks registered in the U.S. and other countries.
All other brand and product names mentioned in this document are trademarks or registered trademarks of their respective companies.
Programma Electric AB is certified according to ISO 9001 and 14001.

Programma Electric AB
Eldarvägen 4 T +46 8 510 195 00
Box 2970 F +46 8 510 195 95
SE-187 29 TÄBY info@programma.se
Sweden www.programma.se

Subject to change without notice. Art. No. ZI-BS02E Doc. BS2643BE 2008